pokecenter fix (#126)

MAJOR UPDATE

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,101 @@
+name: Bug report
+description: Something in the game is broken, wrong, or not behaving like the original.
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        A screenshot is worth more than any description. If you can grab one, grab one.
+        If you genuinely can't, that's fine, but then the details below need to be thorough
+        enough that someone can find the bug without ever seeing your screen.
+
+  - type: input
+    id: summary
+    attributes:
+      label: One line summary
+      description: What's broken, in a sentence.
+      placeholder: Warp at the south end of the Route 5-8 underground path drops you in the wrong spot
+    validations:
+      required: true
+
+  - type: dropdown
+    id: os
+    attributes:
+      label: Which build are you running
+      options:
+        - macOS
+        - Windows
+        - Both
+    validations:
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      description: The release you downloaded. It's in the release title, like 0.1.4.
+      placeholder: 0.1.4
+    validations:
+      required: true
+
+  - type: input
+    id: location
+    attributes:
+      label: Where in the game
+      description: >
+        Be specific. Route, town, building, floor, menu, battle. If it's a map
+        transition, say which side you came in from.
+      placeholder: Underground path between Route 5 and Route 8, south entrance
+    validations:
+      required: true
+
+  - type: textarea
+    id: screenshot
+    attributes:
+      label: Screenshot, or a detailed description if you couldn't take one
+      description: >
+        Drag the image straight into this box. If you couldn't get a screenshot,
+        write "no screenshot" and then describe exactly what was on screen: where
+        the player sprite was, what the tiles around it looked like, any text on
+        screen, whether anything was frozen or flickering. The more concrete, the better.
+      placeholder: |
+        Drop the image here.
+
+        Or, with no screenshot:
+        Screen faded out like a normal warp, then faded back in with the player
+        standing on the grass tile north of the Route 6 gate house instead of
+        inside the tunnel. Player was facing down. No text box. Music kept playing
+        the underground path track instead of switching to the Route 6 track.
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps
+    attributes:
+      label: How to make it happen
+      description: Numbered steps, starting from a point someone else can get to.
+      placeholder: |
+        1. Start a new game, get to Cerulean
+        2. Go south to Route 5, enter the underground path building
+        3. Walk to the south end of the tunnel
+        4. Step onto the stairs
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: What should have happened
+      placeholder: Should have come out inside the Route 8 side entrance building, facing up.
+    validations:
+      required: true
+
+  - type: textarea
+    id: extra
+    attributes:
+      label: Anything else
+      description: >
+        Does it happen every time or only sometimes. Did it start after a specific
+        release. Anything you were doing right before it. Leave blank if nothing comes to mind.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,88 @@
+name: Feature request
+description: Ask for something new, or a change to how something already works.
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        "Can we add X" on its own is hard to act on. Say what you want, why you want it,
+        and how you picture it working. A request with real detail is one someone can
+        actually build without guessing at what you meant.
+
+  - type: input
+    id: summary
+    attributes:
+      label: One line summary
+      description: What you want, in a sentence.
+      placeholder: Add a run toggle so you can move at bike speed without the bike
+    validations:
+      required: true
+
+  - type: textarea
+    id: what
+    attributes:
+      label: What do you want
+      description: >
+        Describe it properly. What is it, where does it live in the game, what does the
+        player see or do. If it changes something that already exists, say what it does today
+        and what it should do instead.
+      placeholder: |
+        A hold-to-run button, the way later Pokemon games do it. Hold B while moving on
+        foot and the player moves at bike speed. Release and you go back to walking.
+        Doesn't work indoors where the bike doesn't work, doesn't work in battles or menus.
+    validations:
+      required: true
+
+  - type: textarea
+    id: why
+    attributes:
+      label: Why is this worth doing
+      description: >
+        What's annoying or missing right now. What does this fix. If it's just because you
+        think it would be fun, say that, it's a real answer.
+      placeholder: |
+        Backtracking across routes you've already cleared is slow, and the bike is a menu
+        dive away and doesn't work in a lot of places. Running would cut a lot of dead time
+        without making the game easier.
+    validations:
+      required: true
+
+  - type: textarea
+    id: how
+    attributes:
+      label: How should it work
+      description: >
+        The specifics. Which button, which menu, what happens in the edge cases. If you don't
+        know, say what you'd expect as a player and leave the rest open.
+      placeholder: |
+        - Hold B on the overworld to run
+        - Same speed as the bike
+        - Disabled anywhere the bike is disabled
+        - Sprite should probably need a running animation, not sure what that takes
+        - No effect on encounter rates
+    validations:
+      required: true
+
+  - type: dropdown
+    id: scope
+    attributes:
+      label: Does this change how the original game plays
+      description: >
+        Some requests are quality of life, some change the actual game. Both are fine,
+        it just helps to know which one you're asking for.
+      options:
+        - Quality of life, original game is untouched
+        - Changes how the game plays
+        - Not sure
+    validations:
+      required: true
+
+  - type: textarea
+    id: extra
+    attributes:
+      label: Anything else
+      description: >
+        Reference screenshots, how another game does it, related issues. Leave blank
+        if nothing comes to mind.
+    validations:
+      required: false

.github/workflows/release.yml

@@ -1,7 +1,7 @@
 name: Release
 
-# Builds the macOS and Windows desktop apps on the self-hosted Mac runner
-# and publishes them as a GitHub Release.
+# Builds the macOS, Windows, and Linux desktop apps plus an Android APK
+# on the self-hosted Mac runner, and publishes them as a GitHub Release.
 #
 # Versioning:
 #   - First ever release is 0.1.0.
@@ -14,6 +14,12 @@ name: Release
 on:
   push:
     branches: [main]
+    # CI/workflow and docs-only changes don't ship anything to users, so they
+    # don't earn a release. A push touching these *and* real source still
+    # releases; only pushes confined entirely to these paths are skipped.
+    paths-ignore:
+      - '.github/**'
+      - '**.md'
   workflow_dispatch:
     inputs:
       version:
@@ -23,6 +29,8 @@ on:
 
 permissions:
   contents: write
+  issues: read
+  pull-requests: read
 
 concurrency:
   group: release
@@ -144,14 +152,20 @@ jobs:
           echo "Identities available to codesign:"
           security find-identity -v -p codesigning "$KEYCHAIN_PATH"
 
-      - name: Build macOS + Windows
+      - name: Build macOS + Windows + Linux
         run: |
           set -euo pipefail
           # Sign in-build (identity auto-detected from the temp keychain);
           # notarize separately below so it uses secret credentials, not a
-          # login-keychain profile.
+          # login-keychain profile. "all" also builds the Linux AppImage,
+          # which needs no signing/notarization.
           scripts/build.sh all --version "${{ steps.ver.outputs.version }}" --no-notarize
 
+      - name: Build Android
+        run: |
+          set -euo pipefail
+          scripts/build_android.sh --version "${{ steps.ver.outputs.version }}"
+
       - name: Notarize & staple macOS app
         run: |
           set -euo pipefail
@@ -163,8 +177,8 @@ jobs:
           set -a; . "$ci_dir/notary.env"; set +a
           echo "::add-mask::$APPLE_APP_PASSWORD"
 
-          app=".bazinga/work/PokemonRed.app"
-          zip="dist/mac/PokemonRed-macos.zip"
+          app=".bazinga/work/gen1recomp.app"
+          zip="dist/mac/gen1recomp-macos.zip"
           [ -d "$app" ] || { echo "::error::signed app not found at $app"; exit 1; }
           if [ -z "${APPLE_ID:-}" ] || [ -z "${APPLE_APP_PASSWORD:-}" ] || [ -z "${APPLE_TEAM_ID:-}" ]; then
             echo "::error::notary.env is missing APPLE_ID / APPLE_APP_PASSWORD / APPLE_TEAM_ID."
@@ -194,8 +208,12 @@ jobs:
           outdir="dist/release"
           rm -rf "$outdir"
           mkdir -p "$outdir"
-          cp "dist/mac/PokemonRed-macos.zip" "$outdir/PokemonRed-${v}-macos.zip"
-          cp "dist/win/PokemonRed-win64.zip" "$outdir/PokemonRed-${v}-windows.zip"
+          cp "dist/mac/gen1recomp-macos.zip" "$outdir/gen1recomp-${v}-macos.zip"
+          cp "dist/win/gen1recomp-win64.zip" "$outdir/gen1recomp-${v}-windows.zip"
+          cp "dist/linux/gen1recomp-linux.zip" "$outdir/gen1recomp-${v}-linux.zip"
+          apk="$(find dist/android/debug -name '*.apk' | head -1)"
+          [ -n "$apk" ] || { echo "::error::no Android APK found under dist/android/debug"; exit 1; }
+          cp "$apk" "$outdir/gen1recomp-${v}-android.apk"
           ls -lh "$outdir"
 
       - name: Publish GitHub Release
@@ -206,14 +224,49 @@ jobs:
           v="${{ steps.ver.outputs.version }}"
           tag="${{ steps.ver.outputs.tag }}"
 
+          # Issues this release closes, per GitHub's own "closing issues" links
+          # (works for squash, rebase, and merge commits alike). Scans every
+          # commit since the previous tag so a skipped release run doesn't drop
+          # issues on the floor.
+          prev_tag="$(git tag -l 'v*' --sort=-v:refname | grep -v "^${tag}$" | head -1 || true)"
+          range="${prev_tag:+${prev_tag}..}$GITHUB_SHA"
+
+          closed=""
+          for pr in $(git log --pretty=%H "$range" \
+                        | xargs -I{} gh api "repos/$GITHUB_REPOSITORY/commits/{}/pulls" \
+                              --jq '.[].number' 2>/dev/null \
+                        | sort -un || true); do
+            closed+="$(gh api graphql \
+              -f owner="${GITHUB_REPOSITORY%/*}" \
+              -f name="${GITHUB_REPOSITORY#*/}" \
+              -F pr="$pr" \
+              -f query='
+                query($owner:String!, $name:String!, $pr:Int!) {
+                  repository(owner:$owner, name:$name) {
+                    pullRequest(number:$pr) {
+                      closingIssuesReferences(first:50) { nodes { number title } }
+                    }
+                  }
+                }' \
+              --jq '.data.repository.pullRequest.closingIssuesReferences.nodes[]
+                    | "- #\(.number) \(.title)"' 2>/dev/null || true)"$'\n'
+          done
+          closed="$(printf '%s' "$closed" | grep . | sort -t'#' -k2 -n || true)"
+
           notes="Download the correct version for your computer below."
+          if [ -n "$closed" ]; then
+            notes+=$'\n\n## Issues closed\n\n'"$closed"
+          fi
+          printf 'Release notes:\n%s\n' "$notes"
 
           gh release create "$tag" \
             --target "$GITHUB_SHA" \
             --title "$v" \
             --notes "$notes" \
-            "dist/release/PokemonRed-${v}-macos.zip" \
-            "dist/release/PokemonRed-${v}-windows.zip"
+            "dist/release/gen1recomp-${v}-macos.zip" \
+            "dist/release/gen1recomp-${v}-windows.zip" \
+            "dist/release/gen1recomp-${v}-linux.zip" \
+            "dist/release/gen1recomp-${v}-android.apk"
 
           echo "Published release $tag"
 

README.md

@@ -45,6 +45,29 @@ then `love .` for later launches. Windows PowerShell scripts, the optional
 developer data build, test suites, and cache management are covered in
 [Developer Setup](https://github.com/bryanthaboi/pokemon-gen1-recomp-project/wiki/Guide-Developer-Setup).
 
+## Portable Mode
+
+By default the game keeps your save, options, and the private ROM-derived
+data cache in your OS's normal per-user app data folder. To keep everything
+next to the game instead (handy for a USB stick or portable drive you carry
+between computers), drop an empty file named `portable.txt` next to the app
+(next to `PokemonRed.app`/`.exe`, or next to `main.lua`/`conf.lua` when
+running from source), then launch the game. Portable mode is desktop-only
+(Windows, Linux, macOS); it has no effect on Android or iOS, where the app
+runs from a read-only package.
+
+With `portable.txt` present:
+
+- `save.lua`, `save.lua.bak`, and `options.lua` are read from and written to
+  that same folder instead of the OS save directory.
+- A ROM import writes the generated `data/generated` and `assets/generated`
+  cache straight into that folder too (nothing is left in the OS save
+  directory), so a later launch reuses it without asking for the ROM again
+  even on a different computer, as long as the same folder comes along.
+- Deleting `portable.txt` switches back to the normal OS save directory; nothing
+  already written to either location is touched automatically, so copy files
+  over yourself if you want to carry existing progress across the switch.
+
 ## Modding
 
 The game ships a native mod platform: content registries, events and hooks,
@@ -55,6 +78,21 @@ reference — lives on the
 
 Shipped example mods, one per kind of author, live in [`mods/`](mods/).
 
+## Bugs and Ideas
+
+Found a bug? A warp dropping you somewhere it shouldn't, a battle doing math
+that looks wrong, text in the wrong box, anything that does not match the
+original game.
+[Open a bug report](https://github.com/bryanthaboi/pokemon-gen1-recomp-project/issues/new?template=bug_report.yml).
+Attach a screenshot if you can. It saves a lot of back and forth, and if you
+can't get one, the form asks you to describe what you saw instead.
+
+Thought of a feature that could be good, or a way to improve one that already
+exists?
+[Open a feature request](https://github.com/bryanthaboi/pokemon-gen1-recomp-project/issues/new?template=feature_request.yml).
+Say what you want, why it is worth doing, and how you picture it working. A
+request with real detail is one that can actually get built.
+
 ## More
 
 - [Link play](https://github.com/bryanthaboi/pokemon-gen1-recomp-project/wiki/Guide-Link-Play)
@@ -69,3 +107,7 @@ Shipped example mods, one per kind of author, live in [`mods/`](mods/).
 This project would not be possible without [pret](https://github.com/pret) >
 the pret band of decompiling maniacs > and their
 [pokered](https://github.com/pret/pokered) disassembly.
+
+## Wanna Support My Work?
+[![Buy Me a Coffee](https://img.shields.io/badge/Buy_Me_a_Coffee-FFDD00?style=for-the-badge&logo=buy-me-a-coffee&logoColor=black)](https://buymeacoffee.com/bryanthaboi)
+

conf.lua

@@ -1,13 +1,16 @@
 function love.conf(t)
   local editor = os.getenv("POKEPORT_EDITOR") == "1"
+  local developer = os.getenv("POKEPORT_DEV") == "1"
   if arg then
     for _, a in ipairs(arg) do
       if a == "--editor" then editor = true end
+      if a == "--developer" then developer = true end
     end
   end
   -- main.lua runs in the same Lua state right after conf.lua; stash the
   -- decision in a global so it doesn't need to reparse `arg`.
   _G.POKEPORT_EDITOR_MODE = editor
+  _G.POKEPORT_DEV_MODE = developer
 
   if editor then
     t.identity = os.getenv("POKEPORT_IDENTITY") or "pokemon-love2d-editor"
@@ -20,9 +23,13 @@ function love.conf(t)
     -- back to the plain title if the source is not mounted yet
     local ok, Version = pcall(require, "src.core.Version")
     t.window.title = ok and Version.title()
-      or "Pokemon Red (Gen 1 Recompilation Project)"
-    t.window.width = 160 * 4
-    t.window.height = 144 * 4
+      or "gen1recomp"
+    -- Open at the launcher's design size (the split-screen ROM selector is
+    -- laid out for 1024x768). The window is resizable and the 160x144 game
+    -- canvas letterboxes into whatever size it ends up, so this only sets the
+    -- starting size, not the game's resolution.
+    t.window.width = 1024
+    t.window.height = 768
   end
   t.version = "11.5"
   t.window.vsync = 1
@@ -34,14 +41,29 @@ function love.conf(t)
   local osName = love._os
   local mobile = osName == "Android" or osName == "iOS"
   if mobile then
-    -- On Android/iOS, width/height aspect picks portrait vs landscape
-    -- (fullscreen alone is not enough). Use a tall portrait size; the
-    -- OS then resizes to the real display. highdpi is required for
-    -- Retina iOS (Android always behaves as highdpi).
+    -- resizable is what unlocks orientation.  SDL's Android backend, given no
+    -- SDL_HINT_ORIENTATIONS (LÖVE sets none), calls setRequestedOrientation
+    -- at window creation -- FULL_SENSOR when the window is resizable (rotates
+    -- freely to portrait or landscape), otherwise locked to the window's w/h
+    -- aspect.  So a non-resizable tall window forced portrait; resizable lets
+    -- the game follow the device.  The renderer letterboxes the 160x144
+    -- viewport into whatever size results, and touch input is gesture-based,
+    -- so both orientations just work.  iOS follows the Info.plist orientations
+    -- (see mobile/ios/overlays/love-ios.plist, now portrait + landscape).
+    t.window.resizable = true
+    -- Starting size is a tall portrait hint; the OS resizes to the real
+    -- display and rotations resize again. highdpi is required for Retina iOS
+    -- (Android always behaves as highdpi).
     t.window.width = 1080
     t.window.height = 1920
     t.window.fullscreen = true
     t.window.highdpi = true
+    -- Android only (irrelevant on iOS): puts the save directory under the
+    -- app's external-files folder, which is readable/writable via USB or a
+    -- file manager with no runtime permission, so RomImporter can ask the
+    -- player to copy their ROM there instead of needing a native file
+    -- picker (LOVE 11.5 on Android has none -- see src/import/RomImporter.lua).
+    t.externalstorage = osName == "Android"
   else
     t.window.resizable = true
   end

data/scripts/celadon_chief_house.lua

@@ -0,0 +1,26 @@
+-- Celadon Chief House (scripts/CeladonChiefHouse.asm).  The CHIEF is a
+-- talk-only NPC in the original ROM, and ChiefData (data/trainers/
+-- parties.asm) is an empty, unreferenced trainer entry.  After the HALL
+-- OF FAME (EVENT_BEAT_CHAMPION_RIVAL) the CHIEF puts up a fight, using a
+-- reconstructed party for the otherwise-unused OPP_CHIEF class.
+
+return {
+  talk = {
+    TEXT_CELADONCHIEFHOUSE_CHIEF = {
+      { "face_player" },                                        -- 1
+      { "check_flag", "EVENT_BEAT_CHAMPION_RIVAL" },            -- 2
+      { "jump_if_false", 12 },                                  -- 3
+      { "check_flag", "EVENT_BEAT_CELADON_CHIEF" },             -- 4
+      { "jump_if_true", 12 },                                   -- 5
+      { "show_text", "So you've come to\nshut down my\noperation?\f"
+        .. "TEAM ROCKET's\nCHIEF won't go\ndown so easy!" },    -- 6
+      { "start_battle", "trainer", "OPP_CHIEF", 1 },            -- 7
+      { "jump_if_false", "end" },                               -- 8
+      { "set_flag", "EVENT_BEAT_CELADON_CHIEF" },               -- 9
+      { "show_text", "Gah! Even the\nCHIEF is no match\nfor you!\f"
+        .. "TEAM ROCKET is\nfinished for\ngood!" },             -- 10
+      { "jump", "end" },                                        -- 11
+      { "show_text", "_CeladonChiefHouseChiefText" },           -- 12
+    },
+  },
+}

data/scripts/flavor/pewter_city.lua

@@ -5,10 +5,11 @@
 -- The escort choreography (SUPER_NERD1 walking the player to the
 -- museum, YOUNGSTER walking the player to the gym) is scripted NPC
 -- movement + a wPewterCityCurScript state machine that steers the
--- player off-map; that part is already covered on this map by
--- story5.lua's onStep gate (walks the player back a step at the
--- east exit before EVENT_BEAT_BROCK). Here we only port the real
--- YES/NO-branched flavor text these NPCs speak when talked to.
+-- player off-map; the YOUNGSTER's escort to the gym is handled on this
+-- map by story5.lua's onStep gate at the east exit (before
+-- EVENT_BEAT_BROCK), while the SUPER_NERD1 museum escort is not ported.
+-- Here we only port the real YES/NO-branched flavor text these NPCs
+-- speak when talked to.
 
 local M = {}
 

data/scripts/flavor/viridian_city.lua

@@ -1,22 +1,18 @@
 -- Viridian City flavor dialogue (pokered/scripts/ViridianCity.asm).
--- Ports the text_asm bodies for GAMBLER1, YOUNGSTER2, GIRL and OLD_MAN.
+-- Ports the text_asm bodies for GAMBLER1, YOUNGSTER2 and GIRL.
 --
 -- Not ported here (already handled elsewhere / not talk-reachable):
 --  * TEXT_VIRIDIANCITY_FISHER (TM42 gift) -- already ported as a
 --    `gift()` entry in data/scripts/story5.lua's M.VIRIDIAN_CITY.talk.
---  * TEXT_VIRIDIANCITY_OLD_MAN_SLEEPY / TEXT_VIRIDIANCITY_GYM_LOCKED --
---    these are step-triggered blocking texts (ViridianCityCheckGotPokedexScript /
---    ViridianCityCheckGymOpenScript), not npc talk text_asm bodies; the
---    gates themselves are already implemented via story5.lua's onStep
---    chain (viridianOldManStep / viridianGymLock) for this map.
---  * The old man's catch-training minigame trigger (SCRIPT_VIRIDIANCITY_
---    OLD_MAN_START_CATCH_TRAINING / battle vs. WEEDLE) is a full
---    scripted-battle cutscene outside this task's Commands vocabulary
---    (no static_battle-style "battle a scripted old-man WEEDLE" command
---    exists); we port the real YES/NO branch text he speaks but the
---    "yes" branch here just shows the "I'll show you how" line rather
---    than actually starting the minigame, since that machinery isn't
---    ported to this map yet.
+--  * TEXT_VIRIDIANCITY_OLD_MAN (the walking man at (17,5)) and
+--    TEXT_VIRIDIANCITY_OLD_MAN_SLEEPY (the sleeper at (18,9)) -- both
+--    live in data/scripts/story.lua, which owns this map's onStep gate
+--    and can reach the `old_man_demo` command for the real catch
+--    tutorial.  Keep them there: story.lua loads BEFORE this file, so a
+--    duplicate here would silently win the merge.
+--  * TEXT_VIRIDIANCITY_GYM_LOCKED -- a step-triggered blocking text
+--    (ViridianCityCheckGymOpenScript), implemented by story5.lua's
+--    onStep chain (viridianGymLock -> viridianOldManStep) for this map.
 
 local M = {}
 
@@ -91,24 +87,6 @@ M.VIRIDIAN_CITY = {
       end
     end,
 
-    -- ViridianCityOldManText (scripts/ViridianCity.asm): once he's had
-    -- his coffee, he asks (YES/NO) whether you want to learn how to
-    -- catch Pokemon. YES leads into the catch-training minigame
-    -- (SCRIPT_VIRIDIANCITY_OLD_MAN_START_CATCH_TRAINING, not ported --
-    -- see file header); NO just brushes you off ("Time is money...").
-    TEXT_VIRIDIANCITY_OLD_MAN = function(game, ow, npc, done)
-      local t = text(game)
-      ask(game, t._ViridianCityOldManHadMyCoffeeNowText
-        or "Ahh, I've had my\ncoffee now and I\nfeel great!\nSure you can go\nthrough!\nAre you in a\nhurry?", function(yes)
-        if yes then
-          push(game, t._ViridianCityOldManKnowHowToCatchPokemonText
-            or "I see you're using\na POKéDEX.\nWhen you catch a\nPOKéMON, POKéDEX\nis automatically\nupdated.\nWhat? Don't you\nknow how to catch\nPOKéMON?\nI'll show you\nhow to then.", done)
-        else
-          push(game, t._ViridianCityOldManTimeIsMoneyText
-            or "Time is money...\nGo along then.", done)
-        end
-      end)
-    end,
   },
 }
 

data/scripts/oaks_lab.lua

@@ -10,8 +10,8 @@
 --   starter -> taunt + battle OPP_RIVAL1 with the counter-pick party
 --   (player Bulbasaur -> rival Charmander etc., parties 1/2/3 =
 --   Squirtle/Bulbasaur/Charmander in data/trainers/parties.asm);
---   afterwards he gloats or sulks and marches out of the lab
---   (OaksLabRivalBattleEndScript).
+--   afterwards HealParty + flag always, then he gloats or sulks and
+--   marches out (OaksLabRivalEndBattleScript).  A loss does not black out.
 
 -- ball objects: CHARMANDER (6,3), SQUIRTLE (7,3), BULBASAUR (8,3);
 -- rival = object 1 at (4,3).  rivalBallX is the counter-pick's column.
@@ -19,32 +19,35 @@ local function starterBall(askText, species, choseFlag, ownBall,
                            rivalBallX, rivalBall)
   return {
     { "check_flag", "EVENT_GOT_STARTER" },        -- 1
-    { "jump_if_true", 19 },                       -- 2
+    { "jump_if_true", 20 },                       -- 2
     -- no picking until Oak has walked you in (OaksLabScript gating)
     { "check_flag", "EVENT_FOLLOWED_OAK_INTO_LAB" }, -- 3
-    { "jump_if_false", 19 },                      -- 4
-    { "ask", askText },                           -- 5
-    { "jump_if_false", 20 },                      -- 6
-    { "give_pokemon", species, 5 },               -- 7
-    { "set_flag", "EVENT_GOT_STARTER" },          -- 8
-    { "set_flag", choseFlag },                    -- 9
+    { "jump_if_false", 20 },                      -- 4
+    -- the Pokédex "new species" entry shows before the ask (predef
+    -- StarterDex ahead of OaksLabYouWant...Text)
+    { "push_screen", "DexEntryMenu", species },   -- 5
+    { "ask", askText },                           -- 6
+    { "jump_if_false", 21 },                      -- 7
+    { "give_pokemon", species, 5 },               -- 8
+    { "set_flag", "EVENT_GOT_STARTER" },          -- 9
+    { "set_flag", choseFlag },                    -- 10
     -- POKé BALLs are not handed out here in the original -- Oak gives
     -- them later, at OaksLabOak1Text's .give_poke_balls beat once the
     -- player has beaten the Route 22 rival (see TEXT_OAKSLAB_OAK1 below)
-    { "show_text", "_OaksLabReceivedMonText", { RAM = species } }, -- 10
-    { "hide_object", "OAKS_LAB", ownBall },       -- 11
+    { "show_text", "_OaksLabReceivedMonText", { RAM = species } }, -- 11
+    { "hide_object", "OAKS_LAB", ownBall },       -- 12
     -- the rival walks to the countering ball (around the furniture)
-    { "move_npc_to", 1, rivalBallX, 4 },          -- 12
-    { "face_object", 1, "up" },                   -- 13
-    { "show_text", "_OaksLabRivalIllTakeThisOneText" },            -- 14
-    { "hide_object", "OAKS_LAB", rivalBall },     -- 15
+    { "move_npc_to", 1, rivalBallX, 4 },          -- 13
+    { "face_object", 1, "up" },                   -- 14
+    { "show_text", "_OaksLabRivalIllTakeThisOneText" },            -- 15
+    { "hide_object", "OAKS_LAB", rivalBall },     -- 16
     { "show_text", "_OaksLabRivalReceivedMonText",
       { RAM = rivalBall == "OAKSLAB_CHARMANDER_POKE_BALL" and "CHARMANDER"
               or rivalBall == "OAKSLAB_SQUIRTLE_POKE_BALL" and "SQUIRTLE"
-              or "BULBASAUR" } },                 -- 16
-    { "jump", 20 },                               -- 17
-    { "jump", 20 },                               -- 18 (spacer)
-    { "show_text", "_OaksLabThoseArePokeBallsText" }, -- 19
+              or "BULBASAUR" } },                 -- 17
+    { "jump", 21 },                               -- 18
+    { "jump", 21 },                               -- 19 (spacer)
+    { "show_text", "_OaksLabThoseArePokeBallsText" }, -- 20
   }
 end
 
@@ -58,33 +61,40 @@ return {
     TEXT_OAKSLAB_OAK1 = {
       { "face_player" },                                          -- 1
       { "check_flag", "EVENT_GOT_OAKS_PARCEL" },                  -- 2
-      { "jump_if_false", 12 },                                    -- 3
+      { "jump_if_false", 14 },                                    -- 3
       { "check_flag", "EVENT_OAK_GOT_PARCEL" },                   -- 4
-      { "jump_if_true", 12 },                                     -- 5
+      { "jump_if_true", 14 },                                     -- 5
       { "show_text", "_OaksLabOak1DeliverParcelText" },           -- 6
       { "take_item", "OAKS_PARCEL", 1 },                          -- 7
       { "set_flag", "EVENT_OAK_GOT_PARCEL" },                     -- 8
       { "show_text", "_OaksLabOak1PokemonAroundTheWorldText" },   -- 9
       { "set_flag", "EVENT_GOT_POKEDEX" },                        -- 10
-      { "jump", 30 },                                             -- 11
-      { "check_flag", "EVENT_GOT_STARTER" },                      -- 12
-      { "jump_if_false", 27 },                                    -- 13
-      { "check_item", "POKE_BALL" },                              -- 14
-      { "jump_if_true", 25 },                                     -- 15
-      { "check_flag", "EVENT_BEAT_ROUTE22_RIVAL_1ST_BATTLE" },    -- 16
-      { "jump_if_false", 29 },                                    -- 17
-      { "check_flag", "EVENT_GOT_POKEBALLS_FROM_OAK" },           -- 18
-      { "jump_if_true", 25 },                                     -- 19
-      { "set_flag", "EVENT_GOT_POKEBALLS_FROM_OAK" },             -- 20
-      { "give_item", "POKE_BALL", 5, false },                     -- 21
-      { "show_text", "_OaksLabOak1ReceivedPokeballsText" },       -- 22
-      { "show_text", "_OaksLabGivePokeballsExplanationText" },    -- 23
-      { "jump", 30 },                                             -- 24
-      { "show_text", "_OaksLabOak1ComeSeeMeSometimesText" },      -- 25
-      { "jump", 30 },                                             -- 26
-      { "show_text", "_OaksLabOak1WhichPokemonDoYouWantText" },   -- 27
-      { "jump", 30 },                                             -- 28
-      { "show_text", "_OaksLabOak1RaiseYourYoungPokemonText" },   -- 29 (30 = end)
+      -- the Pokédex swaps Viridian's two old men (OaksLab.asm:602-606:
+      -- HideObject TOGGLE_LYING_OLD_MAN / ShowObject TOGGLE_OLD_MAN).
+      -- Until this ran, the walking man at (17,5) -- who owns the coffee
+      -- ask and the catch tutorial -- stayed OFF for the whole game
+      -- (toggleable_objects.asm seeds him OFF, the sleeper ON).
+      { "hide_object", "VIRIDIAN_CITY", "VIRIDIANCITY_OLD_MAN_SLEEPY" }, -- 11
+      { "show_object", "VIRIDIAN_CITY", "VIRIDIANCITY_OLD_MAN" },  -- 12
+      { "jump", 32 },                                             -- 13
+      { "check_flag", "EVENT_GOT_STARTER" },                      -- 14
+      { "jump_if_false", 29 },                                    -- 15
+      { "check_item", "POKE_BALL" },                              -- 16
+      { "jump_if_true", 27 },                                     -- 17
+      { "check_flag", "EVENT_BEAT_ROUTE22_RIVAL_1ST_BATTLE" },    -- 18
+      { "jump_if_false", 31 },                                    -- 19
+      { "check_flag", "EVENT_GOT_POKEBALLS_FROM_OAK" },           -- 20
+      { "jump_if_true", 27 },                                     -- 21
+      { "set_flag", "EVENT_GOT_POKEBALLS_FROM_OAK" },             -- 22
+      { "give_item", "POKE_BALL", 5, false },                     -- 23
+      { "show_text", "_OaksLabOak1ReceivedPokeballsText" },       -- 24
+      { "show_text", "_OaksLabGivePokeballsExplanationText" },    -- 25
+      { "jump", 32 },                                             -- 26
+      { "show_text", "_OaksLabOak1ComeSeeMeSometimesText" },      -- 27
+      { "jump", 32 },                                             -- 28
+      { "show_text", "_OaksLabOak1WhichPokemonDoYouWantText" },   -- 29
+      { "jump", 32 },                                             -- 30
+      { "show_text", "_OaksLabOak1RaiseYourYoungPokemonText" },   -- 31 (32 = end)
     },
 
     TEXT_OAKSLAB_CHARMANDER_POKE_BALL =
@@ -100,9 +110,9 @@ return {
     TEXT_OAKSLAB_RIVAL = {
       { "face_player" },                                          -- 1
       { "check_flag", "EVENT_GOT_STARTER" },                      -- 2
-      { "jump_if_false", 20 },                                    -- 3
+      { "jump_if_false", 21 },                                    -- 3
       { "check_flag", "EVENT_BATTLED_RIVAL_IN_OAKS_LAB" },        -- 4
-      { "jump_if_true", 18 },                                     -- 5
+      { "jump_if_true", 19 },                                     -- 5
       { "show_text", "_OaksLabRivalMyPokemonLooksStrongerText" }, -- 6
       { "check_flag", "EVENT_CHOSE_BULBASAUR" },                  -- 7
       { "jump_if_false", 11 },                                    -- 8
@@ -113,18 +123,20 @@ return {
       { "start_battle", "trainer", "OPP_RIVAL1", 2 },             -- 13 Bulbasaur
       { "jump", 16 },                                             -- 14
       { "start_battle", "trainer", "OPP_RIVAL1", 1 },             -- 15 Squirtle
-      { "set_flag", "EVENT_BATTLED_RIVAL_IN_OAKS_LAB" },          -- 16
-      { "jump", 21 },                                             -- 17
-      { "show_text", "_OaksLabRivalFedUpWithWaitingText" },       -- 18
-      { "jump", 25 },                                             -- 19
-      { "show_text", "_OaksLabRivalGrampsIsntAroundText" },       -- 20
-      -- battle aftermath: on a win the rival sulks and marches out
-      -- (OaksLabRivalBattleEnd); on a loss the blackout already warped
-      -- us away, so the script just ends
-      { "jump_if_false", 25 },                                    -- 21
-      { "show_text", "_OaksLabRivalIPickedTheWrongPokemonText" }, -- 22
-      { "move_npc_to", 1, 4, 11 },                                -- 23
-      { "hide_object", "OAKS_LAB", "OAKSLAB_RIVAL" },             -- 24 (25 = end)
+      -- OaksLabRivalEndBattleScript: HealParty + flag, then exit either way
+      { "heal_party" },                                           -- 16
+      { "set_flag", "EVENT_BATTLED_RIVAL_IN_OAKS_LAB" },          -- 17
+      { "jump", 23 },                                             -- 18
+      { "show_text", "_OaksLabRivalFedUpWithWaitingText" },       -- 19
+      { "jump", "end" },                                          -- 20
+      { "show_text", "_OaksLabRivalGrampsIsntAroundText" },       -- 21
+      { "jump", "end" },                                          -- 22
+      -- win: sulk text then exit; loss: Rival1WinText already played in
+      -- battle (HandlePlayerBlackOut), so skip straight to the walk-out
+      { "jump_if_false", 25 },                                    -- 23
+      { "show_text", "_OaksLabRivalIPickedTheWrongPokemonText" }, -- 24
+      { "move_npc_to", 1, 4, 11 },                                -- 25
+      { "hide_object", "OAKS_LAB", "OAKSLAB_RIVAL" },             -- 26
     },
   },
 
@@ -171,9 +183,12 @@ return {
       local party = flags.EVENT_CHOSE_BULBASAUR and 3
                     or flags.EVENT_CHOSE_SQUIRTLE and 2 or 1
       table.insert(rows, { "start_battle", "trainer", "OPP_RIVAL1", party })
+      -- OaksLabRivalEndBattleScript: heal + flag on win or loss; no blackout
+      table.insert(rows, { "heal_party" })
       table.insert(rows, { "set_flag", "EVENT_BATTLED_RIVAL_IN_OAKS_LAB" })
-      -- a loss blacks out to another map: end the script there
-      table.insert(rows, { "jump_if_false", base + 7 })
+      -- win: sulk text then exit; loss jumps to the walk-out (taunt was
+      -- already shown in-battle via Rival1WinText)
+      table.insert(rows, { "jump_if_false", base + 6 })
       table.insert(rows, { "show_text", "_OaksLabRivalIPickedTheWrongPokemonText" })
       table.insert(rows, { "move_npc_to", 1, 4, 11 })
       table.insert(rows, { "hide_object", "OAKS_LAB", "OAKSLAB_RIVAL" })

data/scripts/pallet_town.lua

@@ -10,15 +10,39 @@
 -- The girl, fisher and the four signs resolve automatically through the
 -- extracted text pointers (no script needed).
 
+-- Once the HALL OF FAME has been reached (EVENT_BEAT_CHAMPION_RIVAL, set
+-- alongside Commands.record_hall_of_fame) Oak offers the ProfOakData
+-- battle (data/trainers/parties.asm) -- three teams picked by the
+-- player's starter, mirroring the rival's type-advantage lineup, that go
+-- unused in the original ROM.
 return {
   talk = {
     TEXT_PALLETTOWN_OAK = {
-      { "face_player" },                                    -- 1
-      { "check_flag", "EVENT_GOT_STARTER" },                -- 2
-      { "jump_if_true", 6 },                                -- 3
-      { "show_text", "_PalletTownOakHeyWaitDontGoOutText" },-- 4
-      { "jump", 7 },                                        -- 5
-      { "show_text", "_PalletTownOakItsUnsafeText" },       -- 6
+      { "face_player" },                                             -- 1
+      { "check_flag", "EVENT_BEAT_CHAMPION_RIVAL" },                 -- 2
+      { "jump_if_false", 20 },                                       -- 3
+      { "check_flag", "EVENT_BEAT_PROF_OAK" },                       -- 4
+      { "jump_if_true", 20 },                                        -- 5
+      { "show_text", "OAK: So you want\nto test your\nskills on me?\f"
+        .. "Very well! Let\nme show you what\na real trainer\ncan do!" }, -- 6
+      { "check_flag", "EVENT_CHOSE_BULBASAUR" },                     -- 7
+      { "jump_if_false", 11 },                                       -- 8
+      { "start_battle", "trainer", "OPP_PROF_OAK", 3 },              -- 9  CHARIZARD
+      { "jump", 16 },                                                -- 10
+      { "check_flag", "EVENT_CHOSE_SQUIRTLE" },                      -- 11
+      { "jump_if_false", 15 },                                       -- 12
+      { "start_battle", "trainer", "OPP_PROF_OAK", 2 },              -- 13 VENUSAUR
+      { "jump", 16 },                                                -- 14
+      { "start_battle", "trainer", "OPP_PROF_OAK", 1 },              -- 15 BLASTOISE
+      { "jump_if_false", "end" },                                    -- 16
+      { "set_flag", "EVENT_BEAT_PROF_OAK" },                         -- 17
+      { "show_text", "OAK: Impressive!\nYou truly are a\nPOKéMON MASTER!" }, -- 18
+      { "jump", "end" },                                             -- 19
+      { "check_flag", "EVENT_GOT_STARTER" },                         -- 20
+      { "jump_if_true", 24 },                                        -- 21
+      { "show_text", "_PalletTownOakHeyWaitDontGoOutText" },         -- 22
+      { "jump", "end" },                                             -- 23
+      { "show_text", "_PalletTownOakItsUnsafeText" },                -- 24
     },
   },
 }

data/scripts/story.lua

@@ -10,6 +10,31 @@ local M = {}
 -- -------------------------------------------------------------------
 
 M.VIRIDIAN_MART = {
+  -- scripts/ViridianMart.asm: the parcel hand-off is the map's DEFAULT
+  -- script, not a talk.  Entering with a starter and no parcel runs
+  -- ViridianMartDefaultScript -- the clerk calls out, then
+  -- StartSimulatingJoypadStates walks the player to the counter
+  -- (.PlayerMovement: PAD_LEFT 1, PAD_UP 2, door (3,7) -> counter (2,5))
+  -- and ViridianMartOaksParcelScript hands the parcel over.  The player
+  -- never presses A.  This matters beyond convenience: the parcel gates
+  -- Oak's Pokedex and the old man clearing Route 2, so vanilla guarantees
+  -- it on entry rather than letting you walk out without it.
+  --
+  -- The talk branch below is kept as the fallback for a save that reaches
+  -- the counter without this having fired.
+  onEnter = function(game, ow)
+    local f = game.save.flags
+    if f.EVENT_OAK_GOT_PARCEL or f.EVENT_GOT_OAKS_PARCEL then return end
+    if not f.EVENT_GOT_STARTER then return end
+    ow:queueScript({
+      { "show_text", "_ViridianMartClerkYouCameFromPalletTownText" },
+      { "move_player", "left", 1 },
+      { "move_player", "up", 2 },
+      -- the quest text's last page is "{PLAYER} got\nOAK's PARCEL!"
+      { "give_item", "OAKS_PARCEL", 1, "_ViridianMartClerkParcelQuestText" },
+      { "set_flag", "EVENT_GOT_OAKS_PARCEL" },
+    })
+  end,
   talk = {
     TEXT_VIRIDIANMART_CLERK = {
       { "check_flag", "EVENT_OAK_GOT_PARCEL" },                       -- 1
@@ -33,42 +58,48 @@ M.VIRIDIAN_MART = {
 
 M.VIRIDIAN_CITY = {
   talk = {
-    -- the old man napping on the north path (scripts/ViridianCity.asm)
-    -- after his coffee, the old man offers the catch tutorial: not in a
-    -- hurry -> he demos catching a wild mon (BATTLE_TYPE_OLD_MAN)
+    -- The GAMBLER_ASLEEP at (18,9) (ViridianCityOldManSleepyText): he
+    -- only ever grumbles and shoves you back down -- he never wakes,
+    -- moves or hides.  The coffee ask and the catch tutorial belong to
+    -- the *other* old man, the walking SPRITE_GAMBLER at (17,5)
+    -- (TEXT_VIRIDIANCITY_OLD_MAN, below).  The two are swapped by the
+    -- Pokédex in data/scripts/oaks_lab.lua, not by talking to either.
     TEXT_VIRIDIANCITY_OLD_MAN_SLEEPY = {
-      { "check_flag", "EVENT_OAK_GOT_PARCEL" },                          -- 1
-      { "jump_if_true", 5 },                                             -- 2
-      { "show_text", "_ViridianCityOldManSleepyPrivatePropertyText" },   -- 3
-      { "jump", 14 },                                                    -- 4
-      { "face_player" },                                                 -- 5
-      { "ask", "_ViridianCityOldManHadMyCoffeeNowText" },                -- 6
-      { "jump_if_true", 12 },                                            -- 7 (in a hurry)
-      { "show_text", "_ViridianCityOldManKnowHowToCatchPokemonText" },   -- 8
-      { "show_text", "_ViridianCityOldManYouNeedToWeakenTheTargetText" }, -- 9
-      { "old_man_demo" },                                                -- 10
-      { "jump", 13 },                                                    -- 11
-      { "show_text", "_ViridianCityOldManTimeIsMoneyText" },             -- 12
-      { "hide_object", "VIRIDIAN_CITY", "VIRIDIANCITY_OLD_MAN_SLEEPY" }, -- 13
+      { "show_text", "_ViridianCityOldManSleepyPrivatePropertyText" },   -- 1
+      { "move_player", "down", 1 },                                     -- 2
+    },
+
+    -- The walking old man at (17,5), shown once the Pokédex swaps him in
+    -- (ViridianCityOldManText).  "Are you in a hurry?" -- YES brushes you
+    -- off, NO leads into the catch tutorial: he explains, demos a catch
+    -- on a wild WEEDLE (BATTLE_TYPE_OLD_MAN), then comments afterwards.
+    -- pokered prints YouNeedToWeakenTheTarget *after* the demo battle
+    -- (ViridianCityOldManEndCatchTrainingScript), not before it.
+    TEXT_VIRIDIANCITY_OLD_MAN = {
+      { "face_player" },                                                 -- 1
+      { "ask", "_ViridianCityOldManHadMyCoffeeNowText" },                -- 2
+      { "jump_if_true", 8 },                                             -- 3 (yes = in a hurry)
+      { "show_text", "_ViridianCityOldManKnowHowToCatchPokemonText" },   -- 4
+      { "old_man_demo" },                                                -- 5
+      { "show_text", "_ViridianCityOldManYouNeedToWeakenTheTargetText" },-- 6
+      { "jump", 9 },                                                     -- 7
+      { "show_text", "_ViridianCityOldManTimeIsMoneyText" },             -- 8 (9 = end)
     },
   },
-  -- the sleeping old man lies across the Route 22 path (18,9): until
-  -- he moves you can't slip past on either side (scripts/ViridianCity
-  -- blocks the whole corridor, not just his tile)
+  -- ViridianCityCheckGotPokedexScript: the north corridor is gated on
+  -- EVENT_GOT_POKEDEX, NOT on the sleeper being hidden, and it triggers
+  -- on exactly one cell -- (19,9), the gap east of the sleeper (18,9)
+  -- and the girl (17,9).  With the Pokédex the check returns immediately
+  -- and you simply walk past at x=19.
   onStep = function(game, ow, x, y)
-    local gone = game.save.objectToggles and game.save.objectToggles.VIRIDIAN_CITY
-                 and game.save.objectToggles.VIRIDIAN_CITY.VIRIDIANCITY_OLD_MAN_SLEEPY == false
-    if gone then return false end
-    -- crossing north of his row through the 3-wide gap (x 17-19, y<=8)
-    if y <= 8 and x >= 17 and x <= 19 then
-      local TextBox = require("src.render.TextBox")
-      game.stack:push(TextBox.new(game,
-        game.data.text._ViridianCityOldManSleepyPrivatePropertyText
-        or "You can't go\nthrough here!\fThis is private\nproperty!",
-        function() ow:scriptMove(ow.player, "down", 1) end))
-      return true
-    end
-    return false
+    if game.save.flags and game.save.flags.EVENT_GOT_POKEDEX then return false end
+    if x ~= 19 or y ~= 9 then return false end
+    local TextBox = require("src.render.TextBox")
+    game.stack:push(TextBox.new(game,
+      game.data.text._ViridianCityOldManSleepyPrivatePropertyText
+      or "You can't go\nthrough here!\fThis is private\nproperty!",
+      function() ow:scriptMove(ow.player, "down", 1) end))
+    return true
   end,
 }
 
@@ -102,26 +133,107 @@ M.BLUES_HOUSE = {
 
 M.BILLS_HOUSE = {
   talk = {
-    TEXT_BILLSHOUSE_BILL_POKEMON = {
-      { "check_flag", "EVENT_GOT_SS_TICKET" },                     -- 1
-      { "jump_if_true", 11 },                                      -- 2
-      { "show_text", "_BillsHouseBillImNotAPokemonText" },         -- 3
-      { "show_text", "_BillsHouseBillNoYouGottaHelpText" },        -- 4
-      -- the cell-separator PC throws its switch
-      -- (bills_house_pc.asm BillsHouseInitiatedText: SFX_SWITCH)
-      { "play_sound", "Switch" },                                  -- 5
-      { "show_text", "_BillsHouseBillThankYouText" },              -- 6
+    -- BillsHouseBillPokemonText: "I'm not a POKéMON!", a YES/NO choice
+    -- (NO only adds "No, you gotta help!" before rejoining the YES
+    -- path), then the "get in the TELEPORTER" line and the monster
+    -- walking into the cell-separator machine
+    -- (BillsHousePokemonWalkToMachineScript: up 3, or around the player
+    -- when they stand in the way facing down), where it is hidden and
+    -- EVENT_BILL_SAID_USE_CELL_SEPARATOR arms the PC at (1,4) -- see
+    -- OverworldState.billsHousePC for the separator itself.
+    TEXT_BILLSHOUSE_BILL_POKEMON = function(game, ow, npc, done)
+      local TextBox = require("src.render.TextBox")
+      local t = game.data.text
+      local function toMachine()
+        game.stack:push(TextBox.new(game,
+          t._BillsHouseBillUseSeparationSystemText
+          or "When I'm in the\nTELEPORTER, run\nthe Cell\nSeparation System!", function()
+          local function entered()
+            local Commands = require("src.script.Commands")
+            Commands.hide_object({ game = game, save = game.save,
+                                   overworld = ow },
+                                 "BILLS_HOUSE", "BILLSHOUSE_BILL_POKEMON")
+            game.save.flags.EVENT_BILL_SAID_USE_CELL_SEPARATOR = true
+            done()
+          end
+          if ow.player.facing == "down" then
+            -- the player is standing on his straight path: walk around
+            -- (.PokemonWalkAroundPlayerMovement)
+            ow:scriptMove(npc, "right", 1, function()
+              ow:scriptMove(npc, "up", 2, function()
+                ow:scriptMove(npc, "left", 1, function()
+                  ow:scriptMove(npc, "up", 1, entered)
+                end)
+              end)
+            end)
+          else
+            ow:scriptMove(npc, "up", 3, entered)
+          end
+        end))
+      end
+      game.stack:push(TextBox.new(game,
+        t._BillsHouseBillImNotAPokemonText or "Hey! I'm not a\nPOKéMON!",
+        nil, { choice = function(yes)
+          if yes then
+            toMachine()
+          else
+            game.stack:push(TextBox.new(game,
+              t._BillsHouseBillNoYouGottaHelpText
+              or "No! You gotta\nhelp me!", toMachine))
+          end
+        end }))
+    end,
+
+    -- BillsHouseBillSSTicketText (human Bill after the separation)
+    TEXT_BILLSHOUSE_BILL_SS_TICKET = {
+      { "face_player" },                                           -- 1
+      { "check_flag", "EVENT_GOT_SS_TICKET" },                     -- 2
+      { "jump_if_true", 12 },                                      -- 3
+      { "show_text", "_BillsHouseBillThankYouText" },              -- 4
       -- pokered gives first (GiveItem fills wStringBuffer), then prints
       -- the received text that reads it (scripts/BillsHouse.asm; the
       -- item id is S_S_TICKET in generated items.lua -- keyItem, so the
       -- sound_get_key_item jingle plays like BillsHouse.asm:196)
-      { "give_item", "S_S_TICKET", 1, false },                     -- 7
-      { "show_text", "_SSTicketReceivedText" },                    -- 8
-      { "set_flag", "EVENT_GOT_SS_TICKET" },                       -- 9
-      { "jump", 12 },                                              -- 10
-      { "show_text", "_BillsHouseBillCheckOutMyRarePokemonText" }, -- 11
+      { "give_item", "S_S_TICKET", 1, false },                     -- 5
+      { "show_text", "_SSTicketReceivedText" },                    -- 6
+      { "set_flag", "EVENT_GOT_SS_TICKET" },                       -- 7
+      -- The two Cerulean guards are a SWAP PAIR, not scenery
+      -- (BillsHouse.asm:174-178): handing over the ticket shows GUARD1 at
+      -- (28,12) and hides GUARD2 at (27,12).  This matters far more than it
+      -- looks: (27,12) is the ONLY walkable neighbour of the trashed
+      -- house's south door at (27,11), and that house is one of the two
+      -- ways through the fence that splits Cerulean in half (the badge
+      -- house is the other).  Leaving GUARD2 up forever severs the city --
+      -- the gym/mart half can never reach the Route 5 exit.
+      -- Same swap fires after the TM28 Rocket (CeruleanCity_2.asm
+      -- CeruleanHideRocket), so either route opens the path.
+      { "show_object", "CERULEAN_CITY", "CERULEANCITY_GUARD1" },   -- 8
+      { "hide_object", "CERULEAN_CITY", "CERULEANCITY_GUARD2" },   -- 9
+      { "show_text", "_BillsHouseBillWhyDontYouGoInsteadOfMeText" }, -- 10
+      { "jump", 13 },                                              -- 11
+      { "show_text", "_BillsHouseBillWhyDontYouGoInsteadOfMeText" }, -- 12
+    },
+
+    TEXT_BILLSHOUSE_BILL_CHECK_OUT_MY_RARE_POKEMON = {
+      { "face_player" },                                           -- 1
+      { "show_text", "_BillsHouseBillCheckOutMyRarePokemonText" }, -- 2
     },
   },
+  -- repair saves that already got the ticket under the old collapsed
+  -- script (the monster never hidden, human Bill never shown)
+  onEnter = function(game, ow)
+    if game.save.flags.EVENT_GOT_SS_TICKET
+       and not game.save.flags.EVENT_USED_CELL_SEPARATOR_ON_BILL then
+      local Commands = require("src.script.Commands")
+      local ctx = { game = game, save = game.save, overworld = ow }
+      Commands.hide_object(ctx, "BILLS_HOUSE", "BILLSHOUSE_BILL_POKEMON")
+      Commands.show_object(ctx, "BILLS_HOUSE", "BILLSHOUSE_BILL1")
+      game.save.flags.EVENT_BILL_SAID_USE_CELL_SEPARATOR = true
+      game.save.flags.EVENT_USED_CELL_SEPARATOR_ON_BILL = true
+      game.save.flags.EVENT_MET_BILL = true
+      game.save.flags.EVENT_MET_BILL_2 = true
+    end
+  end,
 }
 
 -- -------------------------------------------------------------------
@@ -142,17 +254,48 @@ M.VERMILION_CITY = {
     game.save.trashPuzzle = puz
     puz.first = love.math.random(0, 7) * 2
   end,
+  -- VermilionCityDefaultScript's per-frame SSAnneTicketCheckCoords check:
+  -- the unguarded cell (18,30) just west of the sailor leads straight
+  -- onto the dock warp, so stepping onto it heading for the dock gets
+  -- ticket-checked (and turned back once the ship has sailed) without
+  -- the player ever pressing A.  The sailor himself never disappears.
+  onStep = function(game, ow, x, y)
+    if x ~= 18 or y ~= 30 then return false end
+    if ow.player.facing ~= "down" then return false end
+    local f = game.save.flags
+    local t = game.data.text
+    local TextBox = require("src.render.TextBox")
+    if f.EVENT_SS_ANNE_LEFT then
+      game.stack:push(TextBox.new(game,
+        t._VermilionCitySailor1ShipSetSailText or "The ship set sail.",
+        function() ow:scriptMove(ow.player, "up", 1) end))
+      return true
+    end
+    if (game.save.inventory.S_S_TICKET or 0) > 0 then return false end
+    game.stack:push(TextBox.new(game,
+      (t._VermilionCitySailor1WelcomeToSSAnneText or "Welcome to S.S.\nANNE!")
+      .. "\f"
+      .. (t._VermilionCitySailor1YouNeedATicketText
+          or "You need a ticket\nto get aboard."),
+      function() ow:scriptMove(ow.player, "up", 1) end))
+    return true
+  end,
   talk = {
-    -- the sailor guarding the dock gangway
+    -- the sailor guarding the dock gangway (VermilionCitySailor1Text):
+    -- flashing the ticket just lets you through -- he never hides, and
+    -- once the ship has sailed he only reports it gone
     TEXT_VERMILIONCITY_SAILOR1 = {
       { "face_player" },                                             -- 1
-      { "show_text", "_VermilionCitySailor1WelcomeToSSAnneText" },   -- 2
-      { "check_item", "S_S_TICKET" },                                -- 3
-      { "jump_if_false", 8 },                                        -- 4
-      { "show_text", "_VermilionCitySailor1FlashedTicketText" },     -- 5
-      { "hide_object", "VERMILION_CITY", "VERMILIONCITY_SAILOR1" },  -- 6
-      { "jump", 9 },                                                 -- 7
-      { "show_text", "_VermilionCitySailor1YouNeedATicketText" },    -- 8
+      { "check_flag", "EVENT_SS_ANNE_LEFT" },                        -- 2
+      { "jump_if_true", 11 },                                        -- 3
+      { "show_text", "_VermilionCitySailor1WelcomeToSSAnneText" },   -- 4
+      { "check_item", "S_S_TICKET" },                                -- 5
+      { "jump_if_false", 9 },                                        -- 6
+      { "show_text", "_VermilionCitySailor1FlashedTicketText" },     -- 7
+      { "jump", 12 },                                                -- 8
+      { "show_text", "_VermilionCitySailor1YouNeedATicketText" },    -- 9
+      { "jump", 12 },                                                -- 10
+      { "show_text", "_VermilionCitySailor1ShipSetSailText" },       -- 11
     },
   },
 }
@@ -208,7 +351,17 @@ M.POKEMON_TOWER_7F = {
       { "show_object", "MR_FUJIS_HOUSE", "MRFUJISHOUSE_MR_FUJI" },   -- 5
       { "hide_object", "SAFFRON_CITY", "SAFFRONCITY_ROCKET8" },      -- 6
       { "show_object", "SAFFRON_CITY", "SAFFRONCITY_ROCKET9" },      -- 7
-      { "warp", "MR_FUJIS_HOUSE", 3, 3, "down" },         -- 8
+      -- pokered warps to wDestinationWarpID $1 (0-based) -- the house's
+      -- SECOND warp, the door mat at (3,7) -- facing UP
+      -- (PokemonTower7FWarpToMrFujiHouseScript: SPRITE_FACING_UP +
+      -- hWarpDestinationMap MR_FUJIS_HOUSE). Landing (3,3) instead put
+      -- the player at the Pokédex table, and the route's first waypoint
+      -- (3,7) then stepped onto a LIVE door mat and exited the house
+      -- before ever talking to Fuji -- so the POKE_FLUTE was never
+      -- collected and the Route 16 SNORLAX sealed the map. The arrival
+      -- mat itself is inert until stepped off (warpEntryCell), which is
+      -- what makes the vanilla coordinates safe.
+      { "warp", "MR_FUJIS_HOUSE", 3, 7, "up" },           -- 8
     },
   },
 }
@@ -343,6 +496,50 @@ M.WARDENS_HOUSE = {
 -- -------------------------------------------------------------------
 
 M.SILPH_CO_11F = {
+  -- Giovanni's battle is a COORDINATE TRIGGER, not a talk.
+  -- SilphCo11FDefaultScript (scripts/SilphCo11F.asm) checks
+  -- .PlayerCoordsArray -- (6,13) and (7,12) -- every frame while
+  -- EVENT_BEAT_SILPH_CO_GIOVANNI is unset: standing there shows his text,
+  -- walks him three tiles down (.GiovanniMovement), and starts the fight.
+  -- He also has no trainer-header entry, so sight engagement never fires
+  -- either. Without this hook he was a talk-only statue four tiles away
+  -- from anything the route (or a vanilla-faithful player walking the same
+  -- line) would touch, and the whole Silph ending -- the flag, the Master
+  -- Ball, the Saffron streets clearing -- silently never happened.
+  --
+  -- engageTrainer shows TEXT_SILPHCO11F_GIOVANNI as the battle text and,
+  -- via victories.lua OPP_GIOVANNI#2, sets the event on a win; a loss
+  -- sets nothing, so the trigger re-arms exactly as vanilla does.
+  onStep = function(game, ow, x, y)
+    if game.save.flags.EVENT_BEAT_SILPH_CO_GIOVANNI then return false end
+    if not ((x == 6 and y == 13) or (x == 7 and y == 12)) then return false end
+    local gio
+    for _, npc in ipairs(ow.npcs) do
+      if npc.def and npc.def.name == "SILPHCO11F_GIOVANNI" then gio = npc break end
+    end
+    if not gio or ow:trainerDefeated(gio) then return false end
+    ow:scriptMove(gio, "down", 3, function()
+      gio:facePlayer(ow.player)
+      ow:engageTrainer(gio, function()
+        -- SilphCo11FTeamRocketLeavesScript: Giovanni leaves the floor
+        -- after the loss (the street rockets are handled by
+        -- M.SAFFRON_CITY.onEnter in story4.lua).
+        if game.save.flags.EVENT_BEAT_SILPH_CO_GIOVANNI then
+          local Commands = require("src.script.Commands")
+          local ctx = { game = game, save = game.save, overworld = ow }
+          Commands.hide_object(ctx, "SILPH_CO_11F", "SILPHCO11F_GIOVANNI")
+        end
+      end)
+    end)
+    return true
+  end,
+  onEnter = function(game, ow)
+    if game.save.flags.EVENT_BEAT_SILPH_CO_GIOVANNI then
+      local Commands = require("src.script.Commands")
+      local ctx = { game = game, save = game.save, overworld = ow }
+      Commands.hide_object(ctx, "SILPH_CO_11F", "SILPHCO11F_GIOVANNI")
+    end
+  end,
   talk = {
     TEXT_SILPHCO11F_SILPH_PRESIDENT = {
       { "face_player" },                                                     -- 1
@@ -515,6 +712,29 @@ M.HALL_OF_FAME = {
     local toggles = game.save.objectToggles and game.save.objectToggles.HALL_OF_FAME
     if toggles then toggles.HALLOFFAME_OAK = nil end
 
+    -- Make the Hall of Fame recording machine interactable.  The console
+    -- juts from the north wall as the two solid cells (4,1) and (5,1); a
+    -- sign on each lets the player face the machine (from below, or from
+    -- either side) and press A to run the TEXT_HALLOFFAME_PC talk script.
+    -- maps.lua is generated from the ROM and gitignored, so the sign is
+    -- injected here (a tracked script) rather than baked into map data.
+    local def = ow.map.def
+    def.signs = def.signs or {}
+    local present = false
+    for _, s in ipairs(def.signs) do
+      if s.text == "TEXT_HALLOFFAME_PC" then present = true break end
+    end
+    if not present then
+      table.insert(def.signs, { text = "TEXT_HALLOFFAME_PC", x = 4, y = 1 })
+      table.insert(def.signs, { text = "TEXT_HALLOFFAME_PC", x = 5, y = 1 })
+    end
+    -- the live Map instance built its signAt lookup from def.signs before
+    -- this hook ran, so rebuild it (idempotent) to pick up the injection
+    ow.map.signAt = {}
+    for _, s in ipairs(def.signs) do
+      ow.map.signAt[s.y * ow.map.widthCells + s.x] = s
+    end
+
     if not game.save.pendingHallOfFame then return end
     game.save.pendingHallOfFame = false
     ow:queueScript({
@@ -528,6 +748,17 @@ M.HALL_OF_FAME = {
       { "record_hall_of_fame" },                       -- predef HallOfFamePC: induction + credits
     })
   end,
+  talk = {
+    -- The recording machine doubles as a "warp home" PC: a YES/NO prompt
+    -- that teleports back to the new-game bedroom spawn (special_warps.asm
+    -- NewGameWarp: REDS_HOUSE_2F, 3, 6, facing down).  Fabricated
+    -- convenience -- there is no such prompt in the original ROM.
+    TEXT_HALLOFFAME_PC = {
+      { "ask", "Return to\nPALLET TOWN?" },             -- 1  YES/NO -> lastCheck
+      { "jump_if_false", "end" },                       -- 2  NO: back away
+      { "warp", "REDS_HOUSE_2F", 3, 6, "down" },        -- 3  YES: home to your room
+    },
+  },
 }
 
 -- -------------------------------------------------------------------
@@ -567,6 +798,21 @@ M.POKEMON_TOWER_2F = {
       { "show_text", "_PokemonTower2FRivalHowsYourDexText" },       -- 10
     },
   },
+  -- PokemonTower2FDefaultScript: walking past the rival's tile forces
+  -- the encounter (ArePlayerCoordsInArray on (15,5)/(14,6)) -- he never
+  -- waits to be talked to
+  onStep = function(game, ow, x, y)
+    if game.save.flags.EVENT_BEAT_POKEMON_TOWER_RIVAL then return false end
+    if not ((x == 15 and y == 5) or (x == 14 and y == 6)) then return false end
+    if ow.runner:isRunning() then return false end
+    local rival = ow:npcByIndex(1)
+    if not rival then return false end
+    ow.player.facing = (x == 15) and "left" or "up"
+    require("src.core.Music").play(game.data, "Music_MeetRival")
+    ow.runner:run(M.POKEMON_TOWER_2F.talk.TEXT_POKEMONTOWER2F_RIVAL,
+                  { npc = rival })
+    return true
+  end,
 }
 
 -- -------------------------------------------------------------------

data/scripts/story2.lua

@@ -278,6 +278,23 @@ M.PALLET_TOWN = {
 
 local DRINKS = { "FRESH_WATER", "SODA_POP", "LEMONADE" }
 
+-- Hand over the first drink in the bag, if any. Mirrors RemoveGuardDrink
+-- (engine/items/inventory.asm), which walks the same three item ids and
+-- removes ONE, and the caller's BIT_GAVE_SAFFRON_GUARDS_DRINK.
+local function takeGuardDrink(game)
+  for _, drink in ipairs(DRINKS) do
+    if (game.save.inventory[drink] or 0) > 0 then
+      game.save.inventory[drink] = game.save.inventory[drink] - 1
+      if game.save.inventory[drink] == 0 then
+        game.save.inventory[drink] = nil
+      end
+      game.save.flags.EVENT_GAVE_GUARDS_DRINK = true
+      return true
+    end
+  end
+  return false
+end
+
 local function saffronGate(guardText, triggers, horizontal)
   return {
     talk = {
@@ -289,18 +306,15 @@ local function saffronGate(guardText, triggers, horizontal)
             t._SaffronGateGuardThanksForTheDrinkText or "Gee, that was\ntasty!", done))
           return
         end
-        for _, drink in ipairs(DRINKS) do
-          if (game.save.inventory[drink] or 0) > 0 then
-            game.save.inventory[drink] = game.save.inventory[drink] - 1
-            if game.save.inventory[drink] == 0 then
-              game.save.inventory[drink] = nil
-            end
-            game.save.flags.EVENT_GAVE_GUARDS_DRINK = true
-            game.stack:push(TextBox.new(game,
-              (t._SaffronGateGuardYouCanGoOnThroughText or
-               "Thanks! You can\ngo on through!"), done))
-            return
-          end
+        if takeGuardDrink(game) then
+          game.stack:push(TextBox.new(game,
+            t._SaffronGateGuardImParchedText or "Whoa, boy!\nI'm parched!",
+            function()
+              game.stack:push(TextBox.new(game,
+                (t._SaffronGateGuardYouCanGoOnThroughText or
+                 "You can go on\nthrough!"), done))
+            end))
+          return
         end
         game.stack:push(TextBox.new(game,
           t._SaffronGateGuardGeeImThirstyText or "Gee, I'm thirsty\nthough!", done))
@@ -317,6 +331,31 @@ local function saffronGate(guardText, triggers, horizontal)
       if game.save.flags.EVENT_GAVE_GUARDS_DRINK then return false end
       local TextBox = require("src.render.TextBox")
       local t = game.data.text
+      -- Stepping on the trigger WITH a drink hands it over right here.
+      --
+      -- Route5GateDefaultScript (scripts/Route5Gate.asm) runs
+      -- `farcall RemoveGuardDrink` before it decides anything: the coord
+      -- trigger itself takes the drink and sets
+      -- BIT_GAVE_SAFFRON_GUARDS_DRINK, and only a player carrying nothing
+      -- gets the thirsty line and the walk-back. We had the removal on the
+      -- guard's TALK handler only, so walking up with a FRESH_WATER in the
+      -- bag was turned away and the four gates stayed shut unless you
+      -- happened to talk to him -- which vanilla never requires.
+      --
+      -- Saffron is the middle of the map, so this sealed it: every route
+      -- through the city (Celadon <-> Lavender, Vermilion <-> Cerulean the
+      -- short way) was unreachable, and the bot could not get to Lavender
+      -- for the POKE_FLUTE at all.
+      if takeGuardDrink(game) then
+        game.stack:push(TextBox.new(game,
+          t._SaffronGateGuardImParchedText or "Whoa, boy!\nI'm parched!",
+          function()
+            game.stack:push(TextBox.new(game,
+              (t._SaffronGateGuardYouCanGoOnThroughText or
+               "You can go on\nthrough!")))
+          end))
+        return true
+      end
       local back
       if horizontal then
         back = ow.player.facing == "left" and "right" or "left"
@@ -324,7 +363,7 @@ local function saffronGate(guardText, triggers, horizontal)
         back = ow.player.facing == "up" and "down" or "up"
       end
       game.stack:push(TextBox.new(game,
-        t._SaffronGateGuardImParchedText or "I'm parched...\nNo entry until\nI get a drink!",
+        t._SaffronGateGuardGeeImThirstyText or "Gee, I'm thirsty\nthough!\nThe road's closed.",
         function()
           ow:scriptMove(ow.player, back, 1)
         end))
@@ -386,6 +425,26 @@ M.BIKE_SHOP = {
 -- the Cinnabar lab (the wait is skipped).
 -- -------------------------------------------------------------------
 
+-- The Super Nerd (object index 1) claims both fossils and blocks the way
+-- to them. In scripts/MtMoonB2F.asm he isn't a sight-line trainer: his
+-- header carries no range, so MtMoonB2FDefaultScript force-triggers the
+-- battle the instant the player steps onto (13,8) -- the chokepoint tile
+-- to his right -- and reaching for a fossil intercepts you too.
+local function superNerdBeaten(ow)
+  local nerd = ow:npcByIndex(1)
+  return not nerd or ow:trainerDefeated(nerd)
+end
+
+local function engageSuperNerd(game, ow, onDone)
+  local nerd = ow:npcByIndex(1)
+  if not nerd or ow:trainerDefeated(nerd) then
+    if onDone then onDone() end
+    return
+  end
+  nerd:facePlayer(ow.player)
+  ow:engageTrainer(nerd, onDone)
+end
+
 local function mtMoonFossil(itemId, otherName)
   return function(game, ow, npc, done)
     local TextBox = require("src.render.TextBox")
@@ -394,7 +453,13 @@ local function mtMoonFossil(itemId, otherName)
       game.stack:push(TextBox.new(game, "You already took\na fossil.", done))
       return
     end
-    game.stack:push(TextBox.new(game, "You found a\nfossil! Take it?", function()
+    -- can't grab a fossil until the Super Nerd is beaten -- he intercepts
+    if not superNerdBeaten(ow) then
+      engageSuperNerd(game, ow, done)
+      return
+    end
+    local name = game.data.items[itemId].name
+    game.stack:push(TextBox.new(game, ("You want the\n%s?"):format(name), function()
       game.stack:push(ChoiceBox.new(game, function(yes)
         if not yes then done() return end
         game.save.inventory[itemId] = 1
@@ -403,7 +468,6 @@ local function mtMoonFossil(itemId, otherName)
         local ctx = { save = game.save, overworld = ow, game = game }
         Commands.hide_object(ctx, "MT_MOON_B2F", npc.def.name)
         Commands.hide_object(ctx, "MT_MOON_B2F", otherName)
-        local name = game.data.items[itemId].name
         game.stack:push(TextBox.new(game,
           ("%s got the\n%s!"):format(game.save.player.name, name), done))
       end))
@@ -412,6 +476,15 @@ local function mtMoonFossil(itemId, otherName)
 end
 
 M.MT_MOON_B2F = {
+  -- MtMoonB2FDefaultScript forces the Super Nerd battle when the player
+  -- steps onto (13,8), the tile beside him guarding the fossils.
+  onStep = function(game, ow, x, y)
+    if x == 13 and y == 8 and not superNerdBeaten(ow) then
+      engageSuperNerd(game, ow, nil)
+      return true
+    end
+    return false
+  end,
   talk = {
     TEXT_MTMOONB2F_DOME_FOSSIL = mtMoonFossil("DOME_FOSSIL", "MTMOONB2F_HELIX_FOSSIL"),
     TEXT_MTMOONB2F_HELIX_FOSSIL = mtMoonFossil("HELIX_FOSSIL", "MTMOONB2F_DOME_FOSSIL"),

data/scripts/story3.lua

@@ -63,7 +63,15 @@ M.ROUTE_12_SUPER_ROD_HOUSE.talk.TEXT_ROUTE12SUPERRODHOUSE_FISHING_GURU[9] =
 
 -- -------------------------------------------------------------------
 -- The ghost Marowak (scripts/PokemonTower6F.asm): blocks the stairs at
--- (10,16) until identified with the Silph Scope and defeated.
+-- (10,16) until defeated.
+--
+-- PokemonTower6FDefaultScript starts the RESTLESS SOUL battle with NO
+-- Silph Scope check at the trigger -- the scope only decides whether the
+-- battle is disguised (IsGhostBattle -> makeGhost: "too scared to move",
+-- balls dodged). An earlier version of this port turned the player back
+-- without the scope and never opened the battle, which made 6F
+-- impassable on any route that skips Rocket Hideout; vanilla lets the
+-- battle open and a POKE_DOLL end it (see wBattleResult below).
 -- -------------------------------------------------------------------
 
 M.POKEMON_TOWER_6F = {
@@ -71,26 +79,32 @@ M.POKEMON_TOWER_6F = {
     if game.save.flags.EVENT_BEAT_GHOST_MAROWAK then return false end
     if x ~= 10 or y ~= 16 then return false end
     local TextBox = require("src.render.TextBox")
-    if not game.save.inventory.SILPH_SCOPE then
-      game.stack:push(TextBox.new(game,
-        "A GHOST blocks\nthe way...\fDarn! You can't\nidentify it!",
-        function()
-          local back = ow.player.facing == "up" and "down" or "up"
-          ow:scriptMove(ow.player, back, 1)
-        end))
-      return true
-    end
+    local t = game.data.text
     game.stack:push(TextBox.new(game,
-      "The GHOST was\nMAROWAK!\fThe restless soul\nattacks!", function()
+      t._PokemonTower6FBeGoneText or "Be gone...\nIntruders...", function()
       local BattleState = require("src.battle.BattleState")
       local battle = BattleState.newWild(game, "MAROWAK", 30)
+      if not game.save.inventory.SILPH_SCOPE then
+        battle:makeGhost()
+      end
       battle.onFinish = function(result)
-        if result == "win" then
+        -- wBattleResult parity (PokemonTower6FMarowakBattleScript's
+        -- "and a / jr nz"): losing writes $1 and running writes $2, but
+        -- ItemUsePokeDoll ends the battle WITHOUT touching it, so the
+        -- script reads 0 -- defeated. That is the famous Poke Doll
+        -- trick, and the speedrun route this bot follows depends on it.
+        if result == "win" or battle.pokeDollEscape then
           game.save.flags.EVENT_BEAT_GHOST_MAROWAK = true
           game.stack:push(TextBox.new(game,
-            "The restless soul\ncalmed down and\ndeparted!"))
+            t._PokemonTower6FSoulWasCalmedText
+            or "The mother's soul\nwas calmed.\012It departed to\nthe afterlife!"))
+        elseif result ~= "lose" then
+          -- .did_not_defeat: one simulated step right, off the trigger,
+          -- so fleeing does not leave you standing on a cell that
+          -- immediately re-fires.
+          ow:scriptMove(ow.player, "right", 1)
         end
-        ow:afterBattle(result)
+        ow:afterBattle(result, battle)
       end
       game.stack:push(battle)
     end))
@@ -303,6 +317,33 @@ M.GAME_CORNER = {
         done()
       end))
     end,
+    -- the grunt guarding the poster (GameCornerRocketText /
+    -- GameCornerRocketBattleScript / GameCornerRocketExitScript): after
+    -- losing he warns the BOSS and leaves the floor for good, freeing
+    -- the tile in front of the hideout switch
+    TEXT_GAMECORNER_ROCKET = function(game, ow, npc, done)
+      if ow:trainerDefeated(npc) then
+        done()
+        return
+      end
+      ow:engageTrainer(npc, function()
+        if not ow:trainerDefeated(npc) then
+          done()
+          return
+        end
+        local TextBox = require("src.render.TextBox")
+        game.stack:push(TextBox.new(game,
+          game.data.text._GameCornerRocketAfterBattleText
+          or "Our hideout might\nbe discovered! I\nbetter tell BOSS!",
+          function()
+            local Commands = require("src.script.Commands")
+            Commands.hide_object({ game = game, save = game.save,
+                                   overworld = ow },
+                                 "GAME_CORNER", "GAMECORNER_ROCKET")
+            done()
+          end))
+      end)
+    end,
     TEXT_GAMECORNER_CLERK1 = function(game, ow, npc, done)
       local TextBox = require("src.render.TextBox")
       local ChoiceBox = require("src.ui.ChoiceBox")
@@ -349,24 +390,42 @@ M.GAME_CORNER = {
   },
 }
 
--- Red-version prize lists (data/events/prizes.asm, prize_mon_levels.asm)
-local PRIZES = {
+-- Game Corner prize lists (data/events/prizes.asm, prize_mon_levels.asm).
+-- The six mon prizes differ between Red and Blue; the three TM prizes are
+-- identical, so they are shared and appended to each version's mon list.
+local PRIZE_TMS = {
+  { kind = "item", item = "TM_DRAGON_RAGE", cost = 3300 },
+  { kind = "item", item = "TM_HYPER_BEAM", cost = 5500 },
+  { kind = "item", item = "TM_SUBSTITUTE", cost = 7700 },
+}
+local RED_PRIZES = {
   { kind = "mon", species = "ABRA", level = 9, cost = 180 },
   { kind = "mon", species = "CLEFAIRY", level = 8, cost = 500 },
   { kind = "mon", species = "NIDORINA", level = 17, cost = 1200 },
   { kind = "mon", species = "DRATINI", level = 18, cost = 2800 },
   { kind = "mon", species = "SCYTHER", level = 25, cost = 5500 },
   { kind = "mon", species = "PORYGON", level = 26, cost = 9999 },
-  { kind = "item", item = "TM_DRAGON_RAGE", cost = 3300 },
-  { kind = "item", item = "TM_HYPER_BEAM", cost = 5500 },
-  { kind = "item", item = "TM_SUBSTITUTE", cost = 7700 },
+  PRIZE_TMS[1], PRIZE_TMS[2], PRIZE_TMS[3],
 }
+local BLUE_PRIZES = {
+  { kind = "mon", species = "ABRA", level = 6, cost = 120 },
+  { kind = "mon", species = "CLEFAIRY", level = 12, cost = 750 },
+  { kind = "mon", species = "NIDORINO", level = 17, cost = 1200 },
+  { kind = "mon", species = "PINSIR", level = 20, cost = 2500 },
+  { kind = "mon", species = "DRATINI", level = 24, cost = 4600 },
+  { kind = "mon", species = "PORYGON", level = 18, cost = 6500 },
+  PRIZE_TMS[1], PRIZE_TMS[2], PRIZE_TMS[3],
+}
+
+local function activePrizes()
+  return require("src.core.GameVersion").isBlue() and BLUE_PRIZES or RED_PRIZES
+end
 
 local function prizeCounter(game, ow, npc, done)
   local ListMenu = require("src.ui.ListMenu")
   local Commands = require("src.script.Commands")
   local items = {}
-  for _, p in ipairs(PRIZES) do
+  for _, p in ipairs(activePrizes()) do
     local label
     if p.kind == "mon" then
       label = ("%s L%d"):format(game.data.pokemon[p.species].name, p.level)
@@ -411,18 +470,56 @@ M.GAME_CORNER_PRIZE_ROOM = {
 -- and the player steps off the dock, the ship sets sail.
 -- -------------------------------------------------------------------
 
+-- the ship's hull/deck blocks (block cols 5-8, rows 1-2) and the water
+-- that replaces them once she sails (the surrounding blocks of each row)
+local DOCK_SHIP_BLOCKS = {
+  { bx = 5, by = 1, water = 1 }, { bx = 6, by = 1, water = 1 },
+  { bx = 7, by = 1, water = 1 }, { bx = 8, by = 1, water = 1 },
+  { bx = 5, by = 2, water = 13 }, { bx = 6, by = 2, water = 13 },
+  { bx = 7, by = 2, water = 13 }, { bx = 8, by = 2, water = 13 },
+}
+
 M.VERMILION_DOCK = {
   onEnter = function(game, ow)
-    if game.save.flags.EVENT_SS_ANNE_LEFT then
+    local f = game.save.flags
+    if f.EVENT_SS_ANNE_LEFT then
+      -- the ship is long gone: erase her right away, and anyone who
+      -- still lands here is sent back out past the guard
+      for _, b in ipairs(DOCK_SHIP_BLOCKS) do
+        ow.map:setBlock(b.bx, b.by, b.water)
+      end
+      ow.map.renderer:rebuild()
       local TextBox = require("src.render.TextBox")
       game.stack:push(TextBox.new(game,
         game.data.text._VermilionCitySailor1ShipSetSailText
         or "The ship set sail.", function()
-        ow:startWarpTo("VERMILION_CITY", 19, 30, "up")
+        ow:startWarpTo("VERMILION_CITY", 18, 29, "up")
       end))
-    elseif game.save.flags.EVENT_GOT_HM01 then
-      game.save.flags.EVENT_SS_ANNE_LEFT = true
+    elseif f.EVENT_GOT_HM01 and ow.player.cellY == 2 then
+      -- VermilionDockSSAnneLeavesScript: only stepping OFF the ship
+      -- triggers the departure (wDestinationWarpID == 1 in pokered) --
+      -- the horn blows, smoke puffs drift off the funnel, the ship is
+      -- erased to open water, and the player is walked off the dock
+      -- into the city past the guard (VermilionCity's
+      -- SCRIPT_VERMILIONCITY_PLAYER_EXIT_SHIP walk)
+      f.EVENT_SS_ANNE_LEFT = true
+      require("src.core.Music").stop()
       require("src.core.Sound").play(game.data, "SS_Anne_Horn")
+      local function puff(n, cx)
+        if n <= 0 then return end
+        ow:startDustAnim(cx, 1, function() puff(n - 1, cx + 2) end)
+      end
+      puff(3, 15)
+      local rows = {}
+      rows[#rows + 1] = { "wait", 100 }
+      for _, b in ipairs(DOCK_SHIP_BLOCKS) do
+        rows[#rows + 1] = { "replace_block", b.bx, b.by, b.water }
+      end
+      rows[#rows + 1] = { "wait", 30 }
+      rows[#rows + 1] = { "move_player", "up", 2 }
+      rows[#rows + 1] = { "warp", "VERMILION_CITY", 18, 31, "up" }
+      rows[#rows + 1] = { "move_player", "up", 2 }
+      ow:queueScript(rows)
     end
   end,
 }

data/scripts/story4.lua

@@ -457,6 +457,25 @@ M.ROUTE_24 = {
       battleOrDone()
     end,
   },
+  -- Route24DefaultScript forces TEXT_ROUTE24_COOLTRAINER_M1 whenever the
+  -- player stands on (10,15) in front of the recruiter while
+  -- EVENT_GOT_NUGGET is unset (dbmapcoord 10,15), independent of facing
+  -- or input -- he has no trainer header, so sight never engages him.
+  onStep = function(game, ow, x, y)
+    if game.save.flags.EVENT_GOT_NUGGET then return false end
+    if not (x == 10 and y == 15) then return false end
+    if ow.runner:isRunning() or ow.engaging then return false end
+    local recruiter
+    for _, npc in ipairs(ow.npcs) do
+      if npc.def and npc.def.name == "ROUTE24_COOLTRAINER_M1" then
+        recruiter = npc
+        break
+      end
+    end
+    if not recruiter then return false end
+    ow:showMapText("TEXT_ROUTE24_COOLTRAINER_M1", recruiter)
+    return true
+  end,
 }
 
 -- -------------------------------------------------------------------
@@ -633,4 +652,96 @@ M.BRUNOS_ROOM = e4ExitSeal("EVENT_BEAT_BRUNOS_ROOM_TRAINER_0", 0x24, 0x05,
 M.AGATHAS_ROOM = e4ExitSeal("EVENT_BEAT_AGATHAS_ROOM_TRAINER_0", 0x3b, 0x0e,
   "_AgathasRoomAgathaDontRunAwayText", "EVENT_AUTOWALKED_INTO_AGATHAS_ROOM")
 
+-- -------------------------------------------------------------------
+-- Lance's room (scripts/LancesRoom.asm). Unlike the other three E4
+-- rooms this one gates its ENTRANCE, not its exit: the .blk ships with
+-- the arena doorway CLOSED (blocks $72/$73 at block (2,6)/(3,6), cells
+-- (4-7,12-13)), and LanceShowOrHideEntranceBlocks OPENS it ($31/$32)
+-- on every map load while EVENT_LANCES_ROOM_LOCK_DOOR is unset.
+-- Without this script the doorway never opened, so the whole arena --
+-- Lance AND both CHAMPIONS_ROOM warps at (5,0)/(6,0) -- was sealed off
+-- from the entrance hall and the league dead-ended here ("goto (6,11)
+-- unreachable on LANCES_ROOM").
+--
+-- LancesRoomDefaultScript's coordinate triggers, all inert once
+-- EVENT_BEAT_LANCE is set:
+--   (5,1)/(6,2)   beside Lance -> his battle starts (a coordinate
+--                 trigger, not a talk; victories.lua OPP_LANCE#1 sets
+--                 EVENT_BEAT_LANCE on the win, so a loss re-arms)
+--   (5,11)/(6,11) the doorway -> CheckAndSetEvent
+--                 EVENT_LANCES_ROOM_LOCK_DOOR: first crossing seals
+--                 the door behind the player with SFX_GO_INSIDE
+--   (24,16)       the entrance staircase -> WalkToLance: an auto-walk
+--                 (up 12, left 12, down 7, left 6) landing on (6,11).
+--                 It marches straight across the room's water decor:
+--                 pokered's CollisionCheckOnLand skips collision
+--                 entirely while simulated joypad states run, and our
+--                 scriptMove is collision-free the same way.
+-- -------------------------------------------------------------------
+
+local function lanceEntranceBlocks(game, ow)
+  local locked = game.save.flags.EVENT_LANCES_ROOM_LOCK_DOOR
+  ow:replaceBlock(2, 6, locked and 0x72 or 0x31)
+  ow:replaceBlock(3, 6, locked and 0x73 or 0x32)
+end
+
+local function lanceLockDoor(game, ow)
+  if game.save.flags.EVENT_LANCES_ROOM_LOCK_DOOR then return end
+  game.save.flags.EVENT_LANCES_ROOM_LOCK_DOOR = true
+  require("src.core.Sound").play(game.data, "Go_Inside")
+  lanceEntranceBlocks(game, ow)
+end
+
+local function lanceWalkIn(game, ow)
+  ow:scriptMove(ow.player, "up", 12, function()
+    ow:scriptMove(ow.player, "left", 12, function()
+      ow:scriptMove(ow.player, "down", 7, function()
+        ow:scriptMove(ow.player, "left", 6, function()
+          -- the walk lands on (6,11); vanilla's per-frame coord poll
+          -- then locks the door at once. scriptMove landings do not
+          -- fire onStep, so lock here.
+          lanceLockDoor(game, ow)
+        end)
+      end)
+    end)
+  end)
+end
+
+M.LANCES_ROOM = {
+  onEnter = function(game, ow)
+    lanceEntranceBlocks(game, ow)
+    -- the warp arrival lands ON the staircase trigger, and onStep only
+    -- fires for completed steps -- start the walk-in here, the same
+    -- way Lorelei's auto walk-in runs from its onEnter
+    if not game.save.flags.EVENT_BEAT_LANCE
+       and ow.player.cellX == 24 and ow.player.cellY == 16 then
+      lanceWalkIn(game, ow)
+    end
+  end,
+  onStep = function(game, ow, x, y)
+    if game.save.flags.EVENT_BEAT_LANCE then return false end
+    if (x == 5 and y == 1) or (x == 6 and y == 2) then
+      local lance
+      for _, npc in ipairs(ow.npcs) do
+        if npc.def and npc.def.name == "LANCESROOM_LANCE" then lance = npc break end
+      end
+      if not lance or ow:trainerDefeated(lance) then return false end
+      lance:facePlayer(ow.player)
+      ow:engageTrainer(lance, function() end)
+      return true
+    end
+    if (x == 5 or x == 6) and y == 11 then
+      lanceLockDoor(game, ow)
+      return false
+    end
+    if x == 24 and y == 16 then
+      lanceWalkIn(game, ow)
+      return true
+    end
+    return false
+  end,
+}
+
+M.CELADON_CHIEF_HOUSE = require("data.scripts.celadon_chief_house")
+
 return M

data/scripts/story5.lua

@@ -259,21 +259,39 @@ M.CINNABAR_ISLAND = {
   end,
 }
 
--- Pewter's youngster stops you leaving east before Brock is beaten
--- (scripts/PewterCity.asm PewterCityCheckPlayerLeavingEastScript; the
--- original escorts you to the gym, we walk you back a step)
+-- Pewter's youngster stops you leaving east before Brock is beaten and
+-- escorts you to the gym (scripts/PewterCity.asm
+-- PewterCityCheckPlayerLeavingEastScript /
+-- PewterCityYoungsterShowsPlayerGymScript, engine/events/pewter_guys.asm
+-- PewterGymGuyCoords): the "follow me" lines, then the player is walked
+-- west along the road to the front of the PEWTER_GYM door at (16,17).
 M.PEWTER_CITY = {
   onStep = function(game, ow, x, y)
     if game.save.flags.EVENT_BEAT_BROCK then return false end
+    if ow.runner:isRunning() or #ow.scriptMoves > 0 then return false end
     if not inCoords({ { 35, 17 }, { 36, 17 }, { 37, 18 }, { 37, 19 } }, x, y) then
       return false
     end
     local t = text(game)
+    -- walk up onto the road row (y=17), west to one tile east of the gym
+    -- door, then drop below the door and turn to face it
+    local steps = {}
+    for _ = 1, y - 17 do steps[#steps + 1] = "up" end
+    for _ = 1, x - 17 do steps[#steps + 1] = "left" end
+    steps[#steps + 1] = "down"
+    steps[#steps + 1] = "left"
+    local function walk(i)
+      if not steps[i] then
+        ow.player.facing = "up"
+        return
+      end
+      ow:scriptMove(ow.player, steps[i], 1, function() walk(i + 1) end)
+    end
     push(game, t._PewterCityYoungsterYoureATrainerFollowMeText
       or "Hey! You're a\ntrainer, right?", function()
       push(game, t._PewterCityYoungsterGoTakeOnBrockText
         or "Go take on BROCK\nat the GYM first!", function()
-        ow:scriptMove(ow.player, "left", 1)
+        walk(1)
       end)
     end)
     return true
@@ -360,7 +378,7 @@ local rocketRows = {
   { "jump_if_true", 9 },                                       -- 5
   { "show_text", "_CeruleanCityRocketText" },                  -- 6
   { "start_battle", "trainer", "OPP_ROCKET", 5 },              -- 7
-  { "jump_if_false", 16 },                                     -- 8
+  { "jump_if_false", 18 },                                     -- 8
   { "show_text", "_CeruleanCityRocketIllReturnTheTMText" },    -- 9
   { "set_flag", "EVENT_BEAT_CERULEAN_ROCKET_THIEF" },          -- 10
   { "give_item", "TM_DIG", 1, false },                         -- 11 (row 13 prints)
@@ -368,6 +386,15 @@ local rocketRows = {
   { "show_text", "_CeruleanCityRocketReceivedTM28Text" },      -- 13
   { "show_text", "_CeruleanCityRocketIBetterGetMovingText" },  -- 14
   { "hide_object", "CERULEAN_CITY", "CERULEANCITY_ROCKET" },   -- 15
+  -- CeruleanHideRocket (scripts/CeruleanCity_2.asm) does all three behind
+  -- one fade: the ROCKET goes, GUARD1 (28,12) appears and GUARD2 (27,12)
+  -- disappears.  GUARD2 stands on the only walkable neighbour of the
+  -- trashed house's south door, which is one of the two ways through the
+  -- fence dividing Cerulean, so this swap is what reconnects the city.
+  -- Bill's ticket performs the same swap (data/scripts/story.lua), and
+  -- both are idempotent, so whichever the player reaches first opens it.
+  { "show_object", "CERULEAN_CITY", "CERULEANCITY_GUARD1" },   -- 16
+  { "hide_object", "CERULEAN_CITY", "CERULEANCITY_GUARD2" },   -- 17
 }
 
 M.CERULEAN_CITY = {
@@ -444,10 +471,22 @@ local function bikeGateGuard(coords, stopText, explainText)
   return function(game, ow, x, y)
     if game.save.inventory.BICYCLE then return false end
     if not inCoords(coords, x, y) then return false end
+    -- walk the player up to the tile beside the counter, no further:
+    -- (matchedY - closestY) tiles, 0 when already next to it
+    -- (Route16Gate1FDefaultScript's wCoordIndex-1). Forcing a fixed one
+    -- tile up from the counter-adjacent row shoved the player onto the
+    -- impassable desk and boxed them in.
+    local closestY = coords[1][2]
+    for _, c in ipairs(coords) do
+      if c[2] < closestY then closestY = c[2] end
+    end
+    local dist = y - closestY
     local t = text(game)
     push(game, t[stopText] or "Hey! Wait up!", function()
       push(game, t[explainText] or "You need a\nBICYCLE for\nCYCLING ROAD!", function()
-        ow:scriptMove(ow.player, "up", 1)
+        if dist > 0 then
+          ow:scriptMove(ow.player, "up", dist)
+        end
       end)
     end)
     return true

data/scripts/victories.lua

@@ -5,24 +5,46 @@
 --   Rocket Hideout Giovanni: his Silph Scope is an item ball next to him
 --   (data/maps/objects/RocketHideoutB4F.asm), so no reward entry needed.
 -- The TM each gym leader hands out afterwards is also ported.
+--
+-- `deactivate` lists the EVENT_BEAT_* flags each gym's victory script
+-- sets to retire unfought non-leader trainers (PewterGym.asm
+-- "; deactivate gym trainers" / SetEventRange in the other gyms, and
+-- FightingDojo.asm SetEventRange EVENT_BEAT_KARATE_MASTER ..
+-- EVENT_BEAT_FIGHTING_DOJO_TRAINER_3).
+
+local function range(prefix, first, last)
+  local t = {}
+  for i = first, last do
+    t[#t + 1] = prefix .. i
+  end
+  return t
+end
 
 return {
   ["OPP_BROCK#1"] = { badge = "BOULDERBADGE", flag = "EVENT_BEAT_BROCK",
-                      item = "TM_BIDE" },
+                      item = "TM_BIDE",
+                      deactivate = { "EVENT_BEAT_PEWTER_GYM_TRAINER_0" } },
   ["OPP_MISTY#1"] = { badge = "CASCADEBADGE", flag = "EVENT_BEAT_MISTY",
-                      item = "TM_BUBBLEBEAM" },
+                      item = "TM_BUBBLEBEAM",
+                      deactivate = range("EVENT_BEAT_CERULEAN_GYM_TRAINER_", 0, 1) },
   ["OPP_LT_SURGE#1"] = { badge = "THUNDERBADGE", flag = "EVENT_BEAT_LT_SURGE",
-                         item = "TM_THUNDERBOLT" },
+                         item = "TM_THUNDERBOLT",
+                         deactivate = range("EVENT_BEAT_VERMILION_GYM_TRAINER_", 0, 2) },
   ["OPP_ERIKA#1"] = { badge = "RAINBOWBADGE", flag = "EVENT_BEAT_ERIKA",
-                      item = "TM_MEGA_DRAIN" },
+                      item = "TM_MEGA_DRAIN",
+                      deactivate = range("EVENT_BEAT_CELADON_GYM_TRAINER_", 0, 6) },
   ["OPP_KOGA#1"] = { badge = "SOULBADGE", flag = "EVENT_BEAT_KOGA",
-                     item = "TM_TOXIC" },
+                     item = "TM_TOXIC",
+                     deactivate = range("EVENT_BEAT_FUCHSIA_GYM_TRAINER_", 0, 5) },
   ["OPP_SABRINA#1"] = { badge = "MARSHBADGE", flag = "EVENT_BEAT_SABRINA",
-                        item = "TM_PSYWAVE" },
+                        item = "TM_PSYWAVE",
+                        deactivate = range("EVENT_BEAT_SAFFRON_GYM_TRAINER_", 0, 6) },
   ["OPP_BLAINE#1"] = { badge = "VOLCANOBADGE", flag = "EVENT_BEAT_BLAINE",
-                       item = "TM_FIRE_BLAST" },
+                       item = "TM_FIRE_BLAST",
+                       deactivate = range("EVENT_BEAT_CINNABAR_GYM_TRAINER_", 0, 6) },
   ["OPP_GIOVANNI#3"] = { badge = "EARTHBADGE", flag = "EVENT_BEAT_GIOVANNI",
-                         item = "TM_FISSURE" },
+                         item = "TM_FISSURE",
+                         deactivate = range("EVENT_BEAT_VIRIDIAN_GYM_TRAINER_", 0, 7) },
 
   -- Silph Co. Giovanni: unlocks the president's Master Ball gift
   ["OPP_GIOVANNI#2"] = { flag = "EVENT_BEAT_SILPH_CO_GIOVANNI" },
@@ -31,7 +53,8 @@ return {
   -- FightingDojoKarateMasterPostBattleScript sets EVENT_BEAT_KARATE_MASTER,
   -- which gates the HITMONLEE/HITMONCHAN gift).  OPP_BLACKBELT party 1 is
   -- only him (data/maps/objects/FightingDojo.asm).
-  ["OPP_BLACKBELT#1"] = { flag = "EVENT_BEAT_KARATE_MASTER" },
+  ["OPP_BLACKBELT#1"] = { flag = "EVENT_BEAT_KARATE_MASTER",
+                          deactivate = range("EVENT_BEAT_FIGHTING_DOJO_TRAINER_", 0, 3) },
 
   -- Elite Four progress flags (their rooms' door logic isn't ported, but
   -- the flags make the Hall of Fame checkable)

docs/known-differences.md

@@ -6,4 +6,37 @@ work for true parity. Faithfully-ported behavior is documented in
 docs/behavior-porting-notes.md; deliberate additions beyond the original
 are in docs/new-features.md.
 
-None currently.
+## Reimplemented unused Prof. Oak and Rocket Chief battles
+
+The original ROM defines trainer data for `PROF_OAK` and `CHIEF`
+(`data/trainers/parties.asm`) but never attaches either to an NPC, so
+both battles are unreachable in the real game. This project makes them
+fightable after the Hall of Fame:
+
+- Prof. Oak battles you in Pallet Town once `EVENT_BEAT_CHAMPION_RIVAL`
+  is set, using `ProfOakData`'s three starter-matched teams (the team is
+  picked by the type that counters your starter, mirroring the rival).
+- The Celadon Game Corner Chief battles you in his house post-game.
+  `ChiefData` is empty in the ROM, so `OPP_CHIEF` is given a
+  reconstructed party.
+
+This is an intentional divergence: neither battle can be triggered in the
+original game.
+
+## Reimplemented unused Silph Co. card-key doors
+
+`engine/events/card_key.asm` and the unused `CardKeyTable1/2/3` coordinate
+lists (`data/events/card_key_coords.asm`) describe locked doors for Silph
+Co. floors 2F-11F, but no retail `.blk` map layout ever places the closed
+door block at those coordinates, so the card key check is dead code in
+the original game. This project stamps the closed door block (`$54`/`$5f`
+on floors 2F-10F, `$20` on 11F) over each of the 20 door coordinates on
+map load, and swaps it for the open block once that door's
+`EVENT_SILPH_CO_n_UNLOCKED_DOORn` flag is set (using the key from a Team
+Rocket grunt, as in the original's unused design).
+
+This is an intentional divergence: the doors are not visible or
+functional in the original game. The door layout lives in
+`tools/rom_manifest.json` (`field.cardKeyDoors.closedDoors`), hand-ported
+since no retail ROM data encodes it; `src/import/RomExtractor.lua` copies
+it straight through on ROM import.

docs/modding.md

@@ -17,3 +17,33 @@ Regenerate the reference straight into a wiki checkout:
 ```sh
 luajit tools/gen_registry_docs.lua ../pokemon-gen1-recomp-project.wiki
 ```
+
+## Developer console
+
+Boot with developer mode on to unlock the in-game console and hot-reload
+hotkeys. Either set `POKEPORT_DEV=1` in the environment or pass
+`--developer` on the command line:
+
+```sh
+love . --developer
+```
+
+While developer mode is active:
+
+- `` ` `` (backtick) opens the console overlay — a Lua REPL with `game`,
+  `data` and `mods` in scope. Press `` ` `` again to close it.
+- `F5` hot-reloads mods and asset caches without restarting.
+
+The console understands these verbs (anything else is evaluated as Lua):
+
+- `warp MAP [x y]` — teleport to a map (default cell 5,5).
+- `give ID [n|level]` — add an item (count) or a Pokémon (level).
+- `flag NAME [on|off]` — read or set an event flag.
+- `party` — dump the current party.
+- `mods` — list loaded mods and their state.
+- `reload` — hot-reload mods (same as `F5`).
+- `trace PAT | trace off` — trace events/hooks matching a glob pattern.
+- `help` — list the verbs.
+
+Developer mode also arms the mod loader's dev tripwire, which flags mods
+that reach outside their permission set.

docs/new-features.md

@@ -42,8 +42,10 @@ Game Boy equivalent:
   rows above the player recede and rows below come toward the viewer. Only
   things that actually *stand* on the ground draw as upright billboards,
   unscaled and pixel-identical to flat mode: the player, NPCs, item balls,
-  and the screen-anchored FX attached to them (heal machine glow, emote
-  bubbles, the fishing rod, the FLY bird). An earlier revision tried
+  and the standing FX attached to them (emote bubbles, the fishing rod,
+  the FLY bird). The Poké Center heal-machine overlay stays on the ground
+  plane with the machine tiles (it is OAM glued to a BG graphic, not a
+  standing sprite). An earlier revision tried
   billboarding buildings/trees/signs too (cutting them out of the ground
   per hand-curated per-tileset tables); that chased an endless tail of
   special cases,  dense tree canopy, fences fused into grass, building
@@ -68,19 +70,31 @@ Game Boy equivalent:
 
 ## Colors mode
 
-The `2` key (and the Options menu COLORS row) cycles the global shade-remap
-display mode through **GBC → OG → OG INV → GBC INV → CLASSIC → GBC**:
+The `2` key (and the Options menu COLORS row) cycles the display mode
+through **OG RED → SGB → RED++ → OG → OG INV → SGB INV → CLASSIC → OG RED**.
+The first three are the real colorizations; the rest are DMG-shade novelties:
 
-- **GBC** (default): current SGB / GBC zone palettes.
+- **OG RED**: the Game Boy Color boot-ROM look for Pokemon Red -- one global
+  red BG palette + one green OBJ palette, every map, no per-map variation
+  (Pokemon Red has no CGB code, so on a GBC the boot ROM colors it globally).
+  The player/NPCs stay green over the red terrain via the OBP bake +
+  post-zone redraw (`PaletteFX.GBC_BG` / `GBC_OBJ`).
+- **SGB** (default): the per-map Super Game Boy region palettes
+  (`data/sgb/sgb_palettes.asm`). Sprites tint with the region palette, as on
+  real SGB. (This is the mode formerly mislabeled "GBC".)
+- **RED++**: pokered-gbc SuperPalettes -- real per-tile GBC coloring plus
+  per-species mon colors (`data/palettes_gbc.lua`).
 - **OG**: force the four DMG grays (colorization off).
 - **OG INV**: inverted DMG grays.
-- **GBC INV**: each SGB zone palette with shade order reversed.
+- **SGB INV**: each SGB zone palette with shade order reversed.
 - **CLASSIC**: original Game Boy pea-soup greens
   (`#9BBC0F` / `#8BAC0F` / `#306230` / `#0F380F`).
 
-The transform is applied centrally in `PaletteFX.sendColors`, so it covers
-overworld, menus, battles, and tilt upright billboards. Persisted as
-`save.options.colors`.
+The shade-remap transform is applied centrally in `PaletteFX.sendColors`, so
+it covers overworld, menus, battles, and tilt upright billboards. OG RED's
+global BG palette is supplied by `OverworldState:overworldBgColors` (per-map
+override in the overworld pass). Persisted as `save.options.colors`; the
+`gbc` / `gbc_inv` save ids are kept for back-compat under the new labels.
 
 ## GBC FX
 
@@ -132,6 +146,10 @@ migrated once into `options.lua` on load.
 - Music / SFX volume
 - Music Filter
 - OG GLITCHES on / off (Gen 1 quirks vs. modern-clean battle rules)
-- COLORS (GBC / OG / OG INV / GBC INV / CLASSIC),  also hotkey `2`
+- COLORS (OG RED / SGB / RED++ / OG / OG INV / SGB INV / CLASSIC),  also
+  hotkey `2` (OG RED = GBC boot-ROM look; RED++ uses pokered-gbc
+  SuperPalettes + per-species mon colors)
 - TILT (OFF / 15 / 35 / 50),  also hotkey `3` while free-roaming
-- GBC FX (OFF / 1 / 2 / 3 / 4),  also hotkey `5`
+- GBC FX (OFF / 1 / 2 / 3 / 4),  also hotkey `5`
+- MAX FPS (30 / 40 / 50 / 60 / 75 / 90 / 100 / 120 / 144 / 160, default 60),
+  a hard render frame-rate cap (`save.options.fpsCap`).

main.lua

@@ -13,7 +13,32 @@ local driverCo  -- optional frame-driver (POKEPORT_DRIVER=file.lua): a
                 -- coroutine that receives `Game` and yields once per
                 -- frame; used headless (xvfb) for scripted screenshots
 
-local function bootGame()
+-- --speed N / POKEPORT_SPEED=N: run the logic clock N times faster without
+-- touching audio (src/core/GameSpeed.lua).  Overrides the saved option so a
+-- bot or screenshot run is not at the mercy of the player's last choice.
+local speedOverride = tonumber(os.getenv("POKEPORT_SPEED"))
+
+-- How many times to run a scripted act+step loop per rendered frame.  Only
+-- scripted runs use this; interactive play fast-forwards through
+-- Game.speedOverride / the GAME SPEED option instead.
+local function scriptedIterations()
+  if not (autopilot or driverCo) then return 1 end
+  return math.max(1, math.floor(require("src.core.GameSpeed").clamp(speedOverride)))
+end
+
+local function bootGame(version)
+  -- The launcher hands us the chosen game (Red / Blue); scripted and headless
+  -- runs fall back to POKEPORT_VERSION, then Red.  Set the active version and
+  -- overlay its extracted cache BEFORE anything requires generated data, so
+  -- data/generated + assets/generated resolve to that version's files.
+  local GameVersion = require("src.core.GameVersion")
+  GameVersion.set(version or os.getenv("POKEPORT_VERSION") or "red")
+  require("src.import.CacheFs").mountVersion(GameVersion.get())
+  if love.window and love.window.setTitle then
+    local Version = require("src.core.Version")
+    love.window.setTitle(Version.title(
+      GameVersion.info().displayName .. " (Gen 1 Recompilation Project)"))
+  end
   Game = require("src.core.Game")
   Game:load()
   if os.getenv("POKEPORT_AUTOPILOT") then
@@ -24,6 +49,10 @@ local function bootGame()
     local fn = assert(loadfile(driverPath))()
     driverCo = coroutine.create(fn)
   end
+  -- After the two above are known: a scripted run drives the multiplier
+  -- from love.update's loop, so the in-engine one must stay at 1 or the
+  -- two would compound (10x10 = 100 steps per observation).
+  Game.speedOverride = (autopilot or driverCo) and 1 or speedOverride
 end
 
 function love.load(args)
@@ -31,8 +60,12 @@ function love.load(args)
   for i, a in ipairs(args or {}) do
     if a == "--editor" then
       editorMode = true
+    elseif a == "--developer" then
+      _G.POKEPORT_DEV_MODE = true
     elseif a == "--save" and args[i + 1] and args[i + 1] ~= "" then
       savePath = args[i + 1]
+    elseif a == "--speed" and tonumber(args[i + 1]) then
+      speedOverride = tonumber(args[i + 1])
     end
   end
   love.graphics.setDefaultFilter("nearest", "nearest")
@@ -47,43 +80,82 @@ function love.load(args)
   end
 
   local RomImporter = require("src.import.RomImporter")
-  if os.getenv("POKEPORT_FORCE_IMPORT") == "1" or not RomImporter.isReady() then
-    Importer = RomImporter.new(function()
-      if os.getenv("POKEPORT_IMPORT_ONLY") == "1" then
-        love.event.quit()
-        return
-      end
-      Importer = nil
-      bootGame()
-    end)
-    local importPath = os.getenv("POKEPORT_IMPORT_ROM")
-    if importPath then Importer:startPath(importPath) end
+  local forceImport = os.getenv("POKEPORT_FORCE_IMPORT") == "1"
+  local importPath = os.getenv("POKEPORT_IMPORT_ROM")
+  -- Scripted / headless runs pick their game from POKEPORT_VERSION (default
+  -- Red); the launcher's per-column choice does not apply to them.
+  local scriptedVersion = os.getenv("POKEPORT_VERSION") or "red"
+  local ready = RomImporter.isReady(scriptedVersion)
+  -- Scripted / headless runs have to reach the game with no human pressing
+  -- Play: an autopilot, a frame driver, an import-only build step, or an
+  -- explicit ROM path all bypass the interactive launcher and keep today's
+  -- import-then-boot (or boot-straight-in) behavior.
+  local scripted = os.getenv("POKEPORT_AUTOPILOT") or os.getenv("POKEPORT_DRIVER")
+    or os.getenv("POKEPORT_IMPORT_ONLY") == "1" or importPath ~= nil
+
+  if scripted then
+    if forceImport or not ready then
+      -- The importer detects the dropped/loaded ROM's version by SHA-1 and
+      -- passes it to onComplete; boot that version.
+      Importer = RomImporter.new(function(version)
+        if os.getenv("POKEPORT_IMPORT_ONLY") == "1" then
+          love.event.quit()
+          return
+        end
+        Importer = nil
+        bootGame(version or scriptedVersion)
+      end)
+      if importPath then Importer:startPath(importPath) end
+      return
+    end
+    bootGame(scriptedVersion)
     return
   end
-  bootGame()
+
+  -- Interactive: the launcher always runs.  Red and Blue are each live: a
+  -- column shows Play when that game's ROM is already imported, or Choose ROM
+  -- / drag-drop when it is not (Yellow is still a placeholder).  Any dropped
+  -- .gb is routed to Red or Blue by its SHA-1; pressing Play boots that game.
+  Importer = RomImporter.new(function(version)
+    Importer = nil
+    bootGame(version)
+  end, { launcher = true, forceImport = forceImport })
 end
 
 function love.update(dt)
   if editorMode then return EditorApp.update(dt) end
   if Importer then return Importer:update(dt) end
 
+  -- Scripted runs (autopilot / POKEPORT_DRIVER) observe and act exactly
+  -- once per Game:update, so they must keep a 1:1 relationship with the
+  -- logic step.  Fast-forwarding them by scaling the step inside
+  -- Game:update would run N steps per observation: a held direction walks
+  -- through all N, the player slides past the waypoint, and the script
+  -- re-plans from an overshot cell.  So iterate the whole act+step loop
+  -- instead -- same script, just more of it per rendered frame.
+  local iterations = scriptedIterations()
+
   if autopilot then
-    autopilot.update()
-    Game:update(1 / 60) -- deterministic stepping for the autopilot
+    for _ = 1, iterations do
+      autopilot.update()
+      Game:update(1 / 60) -- deterministic stepping for the autopilot
+    end
     return
   end
   if driverCo then
-    local ok, err = coroutine.resume(driverCo, Game)
-    if not ok then
-      print("driver error: " .. tostring(err))
-      love.event.quit(1)
-      return
+    for _ = 1, iterations do
+      local ok, err = coroutine.resume(driverCo, Game)
+      if not ok then
+        print("driver error: " .. tostring(err))
+        love.event.quit(1)
+        return
+      end
+      if coroutine.status(driverCo) == "dead" then
+        love.event.quit()
+        return
+      end
+      Game:update(1 / 60)
     end
-    if coroutine.status(driverCo) == "dead" then
-      love.event.quit()
-      return
-    end
-    Game:update(1 / 60)
     return
   end
   Game:update(dt)
@@ -139,6 +211,31 @@ function love.gamepadaxis(joystick, axis, value)
   Game:gamepadaxis(joystick, axis, value)
 end
 
+function love.joystickremoved(joystick)
+  if editorMode then return end
+  if Importer then return end
+  Game:joystickremoved(joystick)
+end
+
+-- f is true on focus gained, false on focus lost (e.g. alt-tab). A held
+-- direction's key-up can be delivered to the OS instead of the game while
+-- unfocused, so reset input on either transition rather than trust it.
+function love.focus(f)
+  if editorMode then return end
+  if Importer then
+    if Importer.focus then Importer:focus(f) end
+    return
+  end
+  Game:focus(f)
+end
+
+-- v is true when the window becomes visible again, false on minimize.
+function love.visible(v)
+  if editorMode then return end
+  if Importer then return end
+  Game:visible(v)
+end
+
 function love.touchpressed(id, x, y, dx, dy, pressure)
   if editorMode then return end
   if Importer then return Importer:mousepressed(x, y, 1) end
@@ -191,6 +288,9 @@ function love.quit()
   if editorMode and EditorApp.quit then
     return EditorApp.quit() -- return true to abort quit
   end
+  pcall(function()
+    require("src.core.DiscordPresence").shutdown()
+  end)
 end
 
 function love.filedropped(file)
@@ -199,3 +299,78 @@ function love.filedropped(file)
   end
   if Importer then Importer:filedropped(file) end
 end
+
+local function pacingEnabled()
+  if os.getenv("POKEPORT_AUTOPILOT") then return false end
+  if os.getenv("POKEPORT_DRIVER") then return false end
+  if os.getenv("POKEPORT_IMPORT_ONLY") == "1" then return false end
+  return true
+end
+
+function love.run()
+  if love.load then love.load(love.arg.parseGameArguments(arg), arg) end
+
+  -- don't let love.load's cost land in the first frame's dt
+  if love.timer then love.timer.step() end
+
+  local FrameCap = require("src.core.FrameCap")
+  local paced = pacingEnabled()
+  -- The deadline the next present() should not beat.  Carried forward one
+  -- budget per frame so pacing stays even instead of drifting with the
+  -- per-frame sleep-granularity jitter.
+  local nextFrame = love.timer and love.timer.getTime() or 0
+  local dt = 0
+
+  return function()
+    -- process events
+    if love.event then
+      love.event.pump()
+      for name, a, b, c, d, e, f in love.event.poll() do
+        if name == "quit" then
+          if not love.quit or not love.quit() then
+            return a or 0
+          end
+        end
+        love.handlers[name](a, b, c, d, e, f)
+      end
+    end
+
+    -- update dt
+    if love.timer then dt = love.timer.step() end
+
+    -- call update and draw
+    if love.update then love.update(dt) end
+
+    if love.graphics and love.graphics.isActive() then
+      love.graphics.origin()
+      love.graphics.clear(love.graphics.getBackgroundColor())
+      if love.draw then love.draw() end
+      love.graphics.present()
+    end
+
+    if love.timer then
+      if paced then
+        -- Sleep out the remainder of the frame budget, measured from the
+        -- carried deadline, in small chunks so the OS timer stays
+        -- responsive.  vsync is untouched: when it already paces slower
+        -- than the cap the remainder is <= 0 and this rounds to a no-op.
+        local budget = 1 / FrameCap.current
+        nextFrame = nextFrame + budget
+        local now = love.timer.getTime()
+        -- A stall (alt-tab, a GC pause, a blocked import) can leave the
+        -- deadline more than a full budget in the past; re-anchor to now so
+        -- we pace the next frame rather than burst uncapped to catch up.
+        if now - nextFrame > budget then
+          nextFrame = now
+        end
+        while true do
+          local remaining = nextFrame - love.timer.getTime()
+          if remaining <= 0 then break end
+          love.timer.sleep(remaining < 0.001 and remaining or 0.001)
+        end
+      else
+        love.timer.sleep(0.001)
+      end
+    end
+  end
+end

mobile/ANDROID.md

@@ -27,17 +27,17 @@ refresh is safe,  just rebuild.
 ## Build
 
 ```bash
-# Debug APK (default Android debug keystore)
+# Build the APK
 scripts/build_android.sh
 
-# Release APK (signing is manual,  see below)
-scripts/build_android.sh --release
+# Build the APK, setting app.version_name/app.version_code to match a release
+scripts/build_android.sh --version 0.2.5
 
 # Zip game.love + branding only (no Android SDK required)
 scripts/build_android.sh --package-only
 ```
 
-Or via `scripts/build.sh android`.
+Or via `scripts/build.sh android [--version X.Y.Z]`.
 
 The embedded `game.love` deliberately excludes `data/generated/`,
 `assets/generated/`, and any ROM. It contains the first-boot Lua importer and
@@ -59,12 +59,10 @@ Set `ANDROID_SDK_ROOT` (or `ANDROID_HOME`), or let the script write
 `local.properties` when it finds `~/Library/Android/sdk`.
 
 Gradle flavor used: **`embedNoRecord`** (game fused into the APK, no microphone).
+Build task: `assembleEmbedNoRecordDebug`.
 
-- Debug task: `assembleEmbedNoRecordDebug`
-- Release task: `assembleEmbedNoRecordRelease`
-
-APKs land under `app/build/outputs/apk/embedNoRecord/{debug,release}/`.
-`scripts/build_android.sh` also copies the built APK(s) to `dist/android/{debug,release}/`.
+The APK lands under `app/build/outputs/apk/embedNoRecord/debug/`.
+`scripts/build_android.sh` also copies it to `dist/android/debug/`.
 
 ### Payload path
 
@@ -79,17 +77,15 @@ scripts, tests, and mobile build sources are excluded.
 | `app.application_id` | `com.theboisclub.pokemonred` |
 | `app.name` | Pokemon Red |
 | `app.orientation` | `portrait` |
+| `app.version_name` / `app.version_code` | set from `--version X.Y.Z` (code = major*10000 + minor*100 + patch); left as-is if `--version` is omitted |
 | Permissions | INTERNET / RECORD_AUDIO / WRITE_EXTERNAL_STORAGE stripped; VIBRATE + BLUETOOTH kept |
 
+## Releases
+
+`.github/workflows/release.yml` builds the APK with `--version` set to the
+release version and publishes it alongside the macOS/Windows/Linux builds as
+`PokemonRed-<version>-android.apk`.
+
 ## Signing
 
-- **Debug**: default Android debug keystore (no setup).
-- **Release**: out-of-band. Create a keystore yourself and wire it into
-  `app/build.gradle`,  **do not commit keystores or passwords**.
-
-Example (placeholder only):
-
-```bash
-keytool -genkey -v -keystore /path/to/pokemonred-release.jks \
-  -alias pokemonred -keyalg RSA -keysize 2048 -validity 10000
-```
+Signed with the default Android keystore (no setup required).

mobile/android/gradle.properties

@@ -6,7 +6,9 @@
 #app.name=LÖVE for Android
 
 app.application_id=com.theboisclub.pokemonred
-app.orientation=portrait
+# fullUser: allow every orientation the player's device permits (portrait and
+# landscape), honouring their auto-rotate lock. Was "portrait" (locked).
+app.orientation=fullUser
 app.version_code=32
 app.version_name=11.5a
 

mobile/android/love/src/jni/LuaJIT-2.1/.gitignore

@@ -1,4 +1,8 @@
 *.[oa]
+# Prebuilt vendored static libs Android.mk links against directly (not
+# built by the Gradle/NDK build itself) -- must stay tracked or a fresh
+# checkout fails ndk-build with "LOCAL_SRC_FILES points to a missing file".
+!android/*/libluajit.a
 *.so
 *.obj
 *.lib

mobile/android/love/src/jni/love/.gitignore

@@ -36,6 +36,7 @@ demos
 *~
 Makefile*
 config*
+!src/common/config.h
 libtool
 /platform/unix/ar-lib
 /platform/unix/compile

mobile/android/love/src/jni/love/src/common/android.cpp

@@ -183,6 +183,18 @@ void vibrate(double seconds)
 	env->DeleteLocalRef(activity);
 }
 
+bool showFilePicker()
+{
+	JNIEnv *env = (JNIEnv*) SDL_AndroidGetJNIEnv();
+	jclass activity = env->FindClass("org/love2d/android/GameActivity");
+
+	jmethodID method = env->GetStaticMethodID(activity, "showRomFilePicker", "()Z");
+	jboolean result = env->CallStaticBooleanMethod(activity, method);
+
+	env->DeleteLocalRef(activity);
+	return result;
+}
+
 /*
  * Helper functions for the filesystem module
  */

mobile/android/love/src/jni/love/src/common/android.h

@@ -59,6 +59,14 @@ bool openURL(const std::string &url);
 
 void vibrate(double seconds);
 
+/**
+ * Shows the system's "pick a document" UI (Storage Access Framework).
+ * Returns true if the picker was launched; the picked file (if any) is
+ * copied asynchronously by GameActivity.onActivityResult into the app's
+ * external save directory, not returned here -- see src/import/RomImporter.lua.
+ **/
+bool showFilePicker();
+
 /*
  * Helper functions for the filesystem module
  */

mobile/android/love/src/jni/love/src/common/config.h

@@ -0,0 +1,178 @@
+/**
+ * Copyright (c) 2006-2023 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#ifndef LOVE_CONFIG_H
+#define LOVE_CONFIG_H
+
+// Platform stuff.
+#if defined(WIN32) || defined(_WIN32)
+#	define LOVE_WINDOWS 1
+	// If _USING_V110_SDK71_ is defined it means we are using the xp toolset.
+#	if defined(_MSC_VER) && (_MSC_VER >= 1700) && !_USING_V110_SDK71_
+#		include <winapifamily.h>
+#		if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#			define LOVE_WINDOWS_UWP 1
+#			define LOVE_NO_MODPLUG 1
+#			define LOVE_NOMPG123 1
+#		endif
+#	endif
+#endif
+#if defined(linux) || defined(__linux) || defined(__linux__)
+#	define LOVE_LINUX 1
+#endif
+#if defined(__ANDROID__)
+#	define LOVE_ANDROID 1
+#endif
+#if defined(__APPLE__)
+#	include <TargetConditionals.h>
+#	if TARGET_OS_IPHONE
+#		define LOVE_IOS 1
+#	elif TARGET_OS_MAC
+#		define LOVE_MACOSX 1
+#	endif
+#endif
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+// I know it's not linux, but it seems most "linux-only" code is bsd-compatible
+#	define LOVE_LINUX 1
+#endif
+
+// Endianness.
+#if defined(__ppc__) || defined(__ppc) || defined(__powerpc__) || defined(__powerpc)
+#	define LOVE_BIG_ENDIAN 1
+#else
+#	define LOVE_LITTLE_ENDIAN 1
+#endif
+
+// SSE instructions.
+#if defined(__SSE__)
+#	define LOVE_SIMD_SSE
+#elif defined(_MSC_VER)
+#	if defined(_M_AMD64) || defined(_M_X64)
+#		define LOVE_SIMD_SSE
+#	elif _M_IX86_FP
+#		define LOVE_SIMD_SSE
+#	endif
+#endif
+
+// NEON instructions.
+#if defined(__ARM_NEON)
+#	define LOVE_SIMD_NEON
+#endif
+
+// Warnings.
+#ifndef _CRT_SECURE_NO_WARNINGS
+#	define _CRT_SECURE_NO_WARNINGS
+#endif
+
+// Preferably, and ironically, this macro should go unused.
+#ifndef LOVE_UNUSED
+#	define LOVE_UNUSED(x) (void)sizeof(x)
+#endif
+
+
+// Warn on unused return values
+#ifdef __GNUC__
+#	define LOVE_WARN_UNUSED __attribute__((warn_unused_result))
+#elif _MSC_VER
+#	define LOVE_WARN_UNUSED _Check_return_
+#else
+#	define LOVE_WARN_UNUSED
+#endif
+
+#ifndef LOVE_BUILD
+#	define LOVE_BUILD
+#	define LOVE_BUILD_STANDALONE
+#	define LOVE_BUILD_EXE
+//#	define LOVE_BUILD_DLL
+#endif
+
+// DLL-stuff.
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#	define LOVE_EXPORT __declspec(dllexport)
+#elif defined(__GNUC__) || defined(__clang__)
+#	define LOVE_EXPORT __attribute__((visibility("default")))
+#else
+#	define LOVE_EXPORT
+#endif
+
+#if defined(LOVE_WINDOWS)
+#ifndef LOVE_WINDOWS_UWP
+#	define LOVE_LEGENDARY_CONSOLE_IO_HACK
+#endif // LOVE_WINDOWS_UWP
+#ifndef __MINGW32__
+#	define NOMINMAX
+#endif
+#endif
+
+#if defined(LOVE_MACOSX) || defined(LOVE_IOS)
+#	define LOVE_LEGENDARY_APP_ARGV_HACK
+#endif
+
+#if defined(LOVE_ANDROID) || defined(LOVE_IOS)
+#	define LOVE_LEGENDARY_ACCELEROMETER_AS_JOYSTICK_HACK
+#endif
+
+// Autotools config.h
+#ifdef HAVE_CONFIG_H
+#	include <../config.h>
+#	undef VERSION
+#	ifdef WORDS_BIGENDIAN
+#		undef LOVE_LITTLE_ENDIAN
+#		define LOVE_BIG_ENDIAN 1
+#	else
+#		undef LOVE_BIG_ENDIAN
+#		define LOVE_LITTLE_ENDIAN 1
+#	endif
+#else
+#	define LOVE_ENABLE_LOVE
+#	define LOVE_ENABLE_AUDIO
+#	define LOVE_ENABLE_DATA
+#	define LOVE_ENABLE_EVENT
+#	define LOVE_ENABLE_FILESYSTEM
+#	define LOVE_ENABLE_FONT
+#	define LOVE_ENABLE_GRAPHICS
+#	define LOVE_ENABLE_IMAGE
+#	define LOVE_ENABLE_JOYSTICK
+#	define LOVE_ENABLE_KEYBOARD
+#	define LOVE_ENABLE_MATH
+#	define LOVE_ENABLE_MOUSE
+#	define LOVE_ENABLE_PHYSICS
+#	define LOVE_ENABLE_SOUND
+#	define LOVE_ENABLE_SYSTEM
+#	define LOVE_ENABLE_THREAD
+#	define LOVE_ENABLE_TIMER
+#	define LOVE_ENABLE_TOUCH
+#	define LOVE_ENABLE_VIDEO
+#	define LOVE_ENABLE_WINDOW
+
+#	define LOVE_ENABLE_ENET
+#	define LOVE_ENABLE_LUASOCKET
+#	define LOVE_ENABLE_LUA53
+#endif
+
+// Check we have a sane configuration
+#if !defined(LOVE_WINDOWS) && !defined(LOVE_LINUX) && !defined(LOVE_IOS) && !defined(LOVE_MACOSX) && !defined(LOVE_ANDROID)
+#	error Could not detect target platform
+#endif
+#if !defined(LOVE_LITTLE_ENDIAN) && !defined(LOVE_BIG_ENDIAN)
+#	error Could not detect endianness
+#endif
+
+#endif // LOVE_CONFIG_H

mobile/android/love/src/jni/love/src/modules/filesystem/physfs/Filesystem.cpp

@@ -186,6 +186,18 @@ bool Filesystem::setIdentity(const char *ident, bool appendToPath)
 
 	save_path_full = storage_path + std::string("/save/") + save_identity;
 
+	// love::android::mkdir is a single mkdir(), not mkdir -p: on a genuinely
+	// first-ever launch (nothing has touched this app's external-files dir
+	// before) save_directory doesn't exist yet either, so creating
+	// save_path_full in one step fails with ENOENT and PHYSFS_mount below
+	// silently never mounts anything for the rest of this process -- not
+	// just the save dir, but everything routed through it (save.lua/
+	// options.lua, the ROM-derived asset cache, RomImporter's Android
+	// folder scan). Ensure each level exists in order instead.
+	if (!love::android::directoryExists(save_directory.c_str()) &&
+			!love::android::mkdir(save_directory.c_str()))
+		SDL_Log("Error: Could not create save directory %s!", save_directory.c_str());
+
 	if (!love::android::directoryExists(save_path_full.c_str()) &&
 			!love::android::mkdir(save_path_full.c_str()))
 		SDL_Log("Error: Could not create save directory %s!", save_path_full.c_str());
@@ -338,6 +350,26 @@ bool Filesystem::setupWriteDirectory()
 	std::string temp_writedir = getDriveRoot(save_path_full);
 	std::string temp_createdir = skipDriveRoot(save_path_full);
 
+#ifdef LOVE_ANDROID
+	// getUserDirectory() falls back to $HOME/getpwuid() (physfs_platform_posix.c),
+	// which is meaningless on Android and unrelated to save_path_full (an
+	// SDL_AndroidGet*StoragePath() subdirectory -- see setIdentity above), so
+	// the generic check below never matches and falls through to setting the
+	// write dir to the drive root ("/"), which no Android app can write to.
+	// Anchor to the real Android storage root instead.
+	std::string androidStorageRoot = isAndroidSaveExternal()
+		? SDL_AndroidGetExternalStoragePath() : SDL_AndroidGetInternalStoragePath();
+	if (save_path_full.find(androidStorageRoot) == 0)
+	{
+		temp_writedir = androidStorageRoot;
+		temp_createdir = save_path_full.substr(androidStorageRoot.length());
+
+		size_t startpos = temp_createdir.find_first_not_of('/');
+		if (startpos != std::string::npos)
+			temp_createdir = temp_createdir.substr(startpos);
+	}
+	else
+#endif
 	// On some sandboxed platforms, physfs will break when its write directory
 	// is the root of the drive and it tries to create a folder (even if the
 	// folder's path is in a writable location.) If the user's home folder is

mobile/android/love/src/jni/love/src/modules/system/System.cpp

@@ -180,6 +180,15 @@ void System::vibrate(double seconds) const
 #endif
 }
 
+bool System::pickFile() const
+{
+#ifdef LOVE_ANDROID
+	return love::android::showFilePicker();
+#else
+	return false;
+#endif
+}
+
 bool System::hasBackgroundMusic() const
 {
 #if defined(LOVE_ANDROID)

mobile/android/love/src/jni/love/src/modules/system/System.h

@@ -106,6 +106,15 @@ public:
 	 */
 	virtual void vibrate(double seconds) const;
 
+	/**
+	 * Shows the platform's native "pick a file" UI, if one is available.
+	 * Android only for now; the result (if any) is not returned here -- see
+	 * love::android::showFilePicker and src/import/RomImporter.lua.
+	 *
+	 * @return Whether the picker was shown.
+	 **/
+	virtual bool pickFile() const;
+
 	/**
 	 * Gets if the user is playing music on background.
 	 * Throws an exception on unsupported platforms.

mobile/android/love/src/jni/love/src/modules/system/wrap_System.cpp

@@ -95,6 +95,12 @@ int w_vibrate(lua_State *L)
 	return 0;
 }
 
+int w_pickFile(lua_State *L)
+{
+	luax_pushboolean(L, instance()->pickFile());
+	return 1;
+}
+
 int w_hasBackgroundMusic(lua_State *L)
 {
 	lua_pushboolean(L, instance()->hasBackgroundMusic());
@@ -110,6 +116,7 @@ static const luaL_Reg functions[] =
 	{ "getPowerInfo", w_getPowerInfo },
 	{ "openURL", w_openURL },
 	{ "vibrate", w_vibrate },
+	{ "pickFile", w_pickFile },
 	{ "hasBackgroundMusic", w_hasBackgroundMusic },
 	{ 0, 0 }
 };

mobile/android/love/src/main/java/org/love2d/android/GameActivity.java

@@ -61,6 +61,13 @@ public class GameActivity extends SDLActivity {
     protected final int[] recordAudioRequestDummy = new int[1];
     public static final int EXTERNAL_STORAGE_REQUEST_CODE = 2;
     public static final int RECORD_AUDIO_REQUEST_CODE = 3;
+    public static final int ROM_PICKER_REQUEST_CODE = 4;
+    // Mirrors conf.lua's t.identity ("pokemon-love2d"): where the picked ROM
+    // is dropped so RomImporter's existing folder scan finds it -- see
+    // src/import/RomImporter.lua and Filesystem::setIdentity (sets Android's
+    // save directory to getExternalFilesDir()/save/<identity>).
+    private static final String ROM_SAVE_IDENTITY = "pokemon-love2d";
+    private static final String PICKED_ROM_FILENAME = "picked_rom.gb";
     private static boolean immersiveActive = false;
     private static boolean needToCopyGameInArchive = false;
     private boolean storagePermissionUnnecessary = false;
@@ -332,6 +339,64 @@ public class GameActivity extends SDLActivity {
         return openURL(url) == 0;
     }
 
+    /**
+     * Shows the system document picker (Storage Access Framework) so the
+     * player can pick their ROM from anywhere (Downloads, Drive, etc.)
+     * without needing to know where the app's external files folder is.
+     * Requires API 19+ (ACTION_OPEN_DOCUMENT); the picked file (if any)
+     * arrives later in onActivityResult, not synchronously here.
+     */
+    @Keep
+    public static boolean showRomFilePicker() {
+        if (android.os.Build.VERSION.SDK_INT < 19) return false;
+        GameActivity self = (GameActivity) mSingleton;
+        if (self == null) return false;
+
+        Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+        intent.addCategory(Intent.CATEGORY_OPENABLE);
+        intent.setType("*/*");
+        try {
+            self.startActivityForResult(intent, ROM_PICKER_REQUEST_CODE);
+            return true;
+        } catch (Exception e) {
+            Log.d("GameActivity", "could not open ROM file picker: " + e.getMessage());
+            return false;
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode != ROM_PICKER_REQUEST_CODE) return;
+        if (resultCode != RESULT_OK || data == null || data.getData() == null) {
+            Log.d("GameActivity", "ROM picker returned no file (cancelled?)");
+            return;
+        }
+
+        Uri uri = data.getData();
+        File destDir = new File(new File(getExternalFilesDir(null), "save"), ROM_SAVE_IDENTITY);
+        if (!destDir.exists() && !destDir.mkdirs()) {
+            Log.d("GameActivity", "could not create " + destDir);
+            return;
+        }
+        File destFile = new File(destDir, PICKED_ROM_FILENAME);
+
+        InputStream source;
+        try {
+            source = getContentResolver().openInputStream(uri);
+        } catch (FileNotFoundException e) {
+            Log.d("GameActivity", "could not open picked ROM: " + e.getMessage());
+            return;
+        }
+        if (source == null) {
+            Log.d("GameActivity", "ContentResolver returned no stream for picked ROM");
+            return;
+        }
+        if (!copyAssetFile(source, destFile.getPath())) {
+            Log.d("GameActivity", "could not copy picked ROM to " + destFile);
+        }
+    }
+
     /**
      * Copies a given file from the assets folder to the destination.
      *

mobile/ios/overlays/love-ios.plist

@@ -62,10 +62,15 @@
 	<key>UISupportedInterfaceOrientations</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
 	<key>UISupportedInterfaceOrientations~ipad</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
 	<key>UTExportedTypeDeclarations</key>
 	<array>

scripts/build.sh

@@ -1,17 +1,19 @@
 #!/usr/bin/env bash
-# Packages the LÖVE2D Pokémon Red port into distributable macOS and
-# Windows builds. Runs entirely on macOS (no cross-compiling needed, 
-# the Windows build reuses LÖVE's prebuilt win64 binaries).
+# Packages the LÖVE2D Pokémon Red port into distributable macOS, Windows,
+# and Linux builds. Runs entirely on macOS (no cross-compiling needed,
+# the Windows and Linux builds reuse LÖVE's prebuilt win64 / AppImage
+# binaries, fusing our game.love onto them the same way love.exe does).
 #
-# Usage: scripts/build.sh [mac|win|android|ios|all] [--version X.Y.Z] [--identity "Developer ID Application: ..."]
+# Usage: scripts/build.sh [mac|win|linux|android|ios|all] [--version X.Y.Z] [--identity "Developer ID Application: ..."]
 #                          [--notary-profile NAME] [--no-notarize]
-#                          [--release]   # android/ios: release config instead of debug
+#                          [--release]   # ios only: release config instead of debug
 #
-# Output: dist/mac/PokemonRed-macos.zip
-#         dist/win/PokemonRed-win64.zip
-#         dist/android/{debug,release}/*.apk (full gradle output stays under
+# Output: dist/mac/gen1recomp-macos.zip
+#         dist/win/gen1recomp-win64.zip
+#         dist/linux/gen1recomp-linux.zip (fused x86_64 AppImage)
+#         dist/android/debug/*.apk (full gradle output stays under
 #           mobile/android/app/build/outputs/apk/embedNoRecord/)
-#         dist/ios/<Config>-<sdk>/PokemonRed.app (full xcodebuild output stays
+#         dist/ios/<Config>-<sdk>/gen1recomp.app (full xcodebuild output stays
 #           under mobile/ios/build/Build/Products/)
 
 set -euo pipefail
@@ -23,15 +25,15 @@ WORK="$HERE/work"
 DIST="$ROOT/dist"
 ENTITLEMENTS="$ROOT/scripts/macos-entitlements.plist"
 
-APP_NAME="PokemonRed"
+APP_NAME="gen1recomp"
 BUNDLE_ID="com.theboisclub.pokemonred"
 LOVE_VERSION="11.5"
 VERSION="$(git -C "$ROOT" rev-parse --short HEAD 2>/dev/null || echo dev)"
+VERSION_EXPLICIT=false
 IDENTITY=""
 TARGET="all"
 NOTARY_PROFILE="notary-profile"
 NOTARIZE=true
-ANDROID_RELEASE=false
 IOS_RELEASE=false
 
 say()  { printf '\033[1;32m==>\033[0m %s\n' "$*"; }
@@ -40,25 +42,25 @@ fail() { printf '\033[1;31merror:\033[0m %s\n' "$*" >&2; exit 1; }
 
 while [ $# -gt 0 ]; do
   case "$1" in
-    mac|win|android|ios|all) TARGET="$1" ;;
-    --version) VERSION="$2"; shift ;;
+    mac|win|linux|android|ios|all) TARGET="$1" ;;
+    --version) VERSION="$2"; VERSION_EXPLICIT=true; shift ;;
     --identity) IDENTITY="$2"; shift ;;
     --notary-profile) NOTARY_PROFILE="$2"; shift ;;
     --no-notarize) NOTARIZE=false ;;
-    --release) ANDROID_RELEASE=true; IOS_RELEASE=true ;;
+    --release) IOS_RELEASE=true ;;
     *) fail "unknown argument: $1" ;;
   esac
   shift
 done
 
-mkdir -p "$CACHE" "$WORK" "$DIST/mac" "$DIST/win"
+mkdir -p "$CACHE" "$WORK" "$DIST/mac" "$DIST/win" "$DIST/linux"
 
 # --------------------------------------------------------------- game.love
 say "packing game.love"
 LOVE_FILE="$WORK/game.love"
 rm -f "$LOVE_FILE"
 (cd "$ROOT" && zip -q -9 -r "$LOVE_FILE" \
-  main.lua conf.lua src data assets tools/rom_manifest.json \
+  main.lua conf.lua src data assets tools/rom_manifest.json tools/rom_manifest_blue.json \
   -x '*.DS_Store' 'data/generated/*' 'assets/generated/*')
 if unzip -Z1 "$LOVE_FILE" \
     | grep -Eq '^(data|assets)/generated/[^/]+|^(data|assets)/generated/.+/'; then
@@ -139,11 +141,20 @@ build_win() {
   say "building Windows (win64) app"
   local zip_name="love-$LOVE_VERSION-win64.zip"
   local love_zip="$CACHE/$zip_name"
+  # A cache hit only checks existence, not validity -- a prior run truncated
+  # by a network drop mid-download (curl still leaves the partial file if
+  # the exit code slips through) would otherwise be reused forever.
+  if [ -f "$love_zip" ] && ! unzip -tqq "$love_zip" >/dev/null 2>&1; then
+    warn "cached $zip_name is not a valid zip,  removing and re-downloading"
+    rm -f "$love_zip"
+  fi
   if [ ! -f "$love_zip" ]; then
     say "downloading LÖVE $LOVE_VERSION win64 binaries"
     curl -fL --progress-bar \
       "https://github.com/love2d/love/releases/download/$LOVE_VERSION/$zip_name" \
       -o "$love_zip" || fail "download failed,  check LOVE_VERSION or your network"
+    unzip -tqq "$love_zip" >/dev/null 2>&1 \
+      || fail "downloaded $zip_name is not a valid zip (truncated download?)"
   fi
 
   local extract_dir="$WORK/love-win64"
@@ -167,12 +178,82 @@ build_win() {
   say "Windows build: $zip_out"
 }
 
+# --------------------------------------------------------------- Linux
+build_linux() {
+  say "building Linux (x86_64 AppImage) app"
+  local appimage_name="love-$LOVE_VERSION-x86_64.AppImage"
+  local love_appimage="$CACHE/$appimage_name"
+  # Same cache-validity gap as the win64 zip above: an AppImage is just an
+  # ELF, so check the magic bytes before trusting a cached copy is complete.
+  if [ -f "$love_appimage" ] && [ "$(head -c 4 "$love_appimage" | od -An -tx1 | tr -d ' \n')" != "7f454c46" ]; then
+    warn "cached $appimage_name is not a valid ELF binary,  removing and re-downloading"
+    rm -f "$love_appimage"
+  fi
+  if [ ! -f "$love_appimage" ]; then
+    say "downloading LÖVE $LOVE_VERSION Linux AppImage"
+    curl -fL --progress-bar \
+      "https://github.com/love2d/love/releases/download/$LOVE_VERSION/$appimage_name" \
+      -o "$love_appimage" || fail "download failed,  check LOVE_VERSION or your network"
+    [ "$(head -c 4 "$love_appimage" | od -An -tx1 | tr -d ' \n')" = "7f454c46" ] \
+      || fail "downloaded $appimage_name is not a valid ELF binary (truncated download?)"
+  fi
+  chmod +x "$love_appimage"
+
+  # The Windows-style `cat love.exe game.love` fusion does NOT work here:
+  # an AppImage is a small runtime ELF with a squashfs appended, and at
+  # launch the runtime mounts the squashfs and executes bin/love from
+  # *inside* it -- bytes appended to the outer file are never read, so
+  # users would just get vanilla LÖVE's no-game screen. Instead, unpack
+  # the squashfs, drop game.love in, point AppRun's FUSE_PATH hook at it
+  # (the hook ships commented-out in LÖVE's official AppImage), and glue
+  # runtime + repacked squashfs back together.
+  command -v unsquashfs >/dev/null && command -v mksquashfs >/dev/null \
+    || fail "squashfs tools not found; install with: brew install squashfs"
+
+  # The squashfs starts right where the ELF ends:
+  # e_shoff + e_shnum * e_shentsize (all little-endian in the ELF64 header).
+  local e_shoff e_shentsize e_shnum sfs_offset
+  e_shoff=$(od -An -j40 -N8 -tu8 "$love_appimage" | tr -d ' ')
+  e_shentsize=$(od -An -j58 -N2 -tu2 "$love_appimage" | tr -d ' ')
+  e_shnum=$(od -An -j60 -N2 -tu2 "$love_appimage" | tr -d ' ')
+  sfs_offset=$((e_shoff + e_shentsize * e_shnum))
+  [ "$(dd if="$love_appimage" bs=1 skip="$sfs_offset" count=4 2>/dev/null)" = "hsqs" ] \
+    || fail "no squashfs superblock at computed offset $sfs_offset (unexpected AppImage layout)"
+
+  local appdir="$WORK/linux-appdir"
+  rm -rf "$appdir"
+  unsquashfs -q -no-xattrs -o "$sfs_offset" -d "$appdir" "$love_appimage" >/dev/null
+
+  cp "$LOVE_FILE" "$appdir/game.love"
+  sed -i '' 's|^#FUSE_PATH="$APPDIR/my_game.love"$|FUSE_PATH="$APPDIR/game.love"|' "$appdir/AppRun"
+  grep -q '^FUSE_PATH="\$APPDIR/game.love"$' "$appdir/AppRun" \
+    || fail "failed to enable FUSE_PATH in AppRun (upstream AppRun changed?)"
+
+  # Match the upstream image's compression (gzip, 128K blocks) so the
+  # bundled runtime can read it.
+  local sfs_out="$WORK/game.squashfs"
+  rm -f "$sfs_out"
+  mksquashfs "$appdir" "$sfs_out" \
+    -comp gzip -b 131072 -noappend -all-root -no-xattrs -quiet >/dev/null
+
+  local out_bin="$WORK/$APP_NAME-x86_64.AppImage"
+  rm -f "$out_bin"
+  head -c "$sfs_offset" "$love_appimage" > "$out_bin"
+  cat "$sfs_out" >> "$out_bin"
+  chmod +x "$out_bin"
+
+  local zip_out="$DIST/linux/$APP_NAME-linux.zip"
+  rm -f "$zip_out"
+  (cd "$WORK" && zip -q -9 -j "$zip_out" "$(basename "$out_bin")")
+  say "Linux build: $zip_out"
+}
+
 # --------------------------------------------------------------- Android
 build_android() {
   say "building Android (delegating to scripts/build_android.sh)"
   local args=()
-  if [ "$ANDROID_RELEASE" = true ]; then
-    args+=(--release)
+  if [ "$VERSION_EXPLICIT" = true ]; then
+    args+=(--version "$VERSION")
   fi
   "$ROOT/scripts/build_android.sh" ${args[@]+"${args[@]}"}
 }
@@ -190,9 +271,10 @@ build_ios() {
 case "$TARGET" in
   mac) build_mac ;;
   win) build_win ;;
+  linux) build_linux ;;
   android) build_android ;;
   ios) build_ios ;;
-  all) build_mac; build_win ;;
+  all) build_mac; build_win; build_linux ;;
 esac
 
 case "$TARGET" in

scripts/build_android.sh

@@ -1,11 +1,10 @@
 #!/usr/bin/env bash
 # Packages the LÖVE2D Pokémon Red port into an Android APK via love-android 11.5a.
 #
-# Usage: scripts/build_android.sh [--release] [--package-only]
+# Usage: scripts/build_android.sh [--version X.Y.Z] [--package-only]
 #
-#   (default)       assembleEmbedNoRecordDebug  (debug keystore)
-#   --release       assembleEmbedNoRecordRelease (requires out-of-band signing)
-#   --package-only  zip game.love + apply branding; skip gradle
+#   --version X.Y.Z  set app.version_name / app.version_code (else left as-is)
+#   --package-only   zip game.love + apply branding; skip gradle
 #
 # Prerequisites:
 #   - mobile/android vendored love-android tree at tag 11.5a (in-repo; see mobile/ANDROID.md)
@@ -13,9 +12,8 @@
 #   - JDK 17
 #
 # Output (after gradle):
-#   dist/android/{debug,release}/*.apk (convenience copy)
+#   dist/android/debug/*.apk (convenience copy)
 #   mobile/android/app/build/outputs/apk/embedNoRecord/debug/*.apk
-#   mobile/android/app/build/outputs/apk/embedNoRecord/release/*.apk
 
 set -euo pipefail
 
@@ -24,12 +22,12 @@ ANDROID_DIR="$ROOT/mobile/android"
 EMBED_ASSETS="$ANDROID_DIR/app/src/embed/assets"
 LOVE_FILE="$EMBED_ASSETS/game.love"
 DIST="$ROOT/dist/android"
-APP_NAME="Pokemon Red"
+APP_NAME="gen1recomp"
 APPLICATION_ID="com.theboisclub.pokemonred"
 LOVE_ANDROID_VERSION="11.5a"
 NDK_VERSION="25.2.9519653"
 
-RELEASE=false
+VERSION=""
 PACKAGE_ONLY=false
 
 say()  { printf '\033[1;32m==>\033[0m %s\n' "$*"; }
@@ -38,17 +36,29 @@ fail() { printf '\033[1;31merror:\033[0m %s\n' "$*" >&2; exit 1; }
 
 while [ $# -gt 0 ]; do
   case "$1" in
-    --release) RELEASE=true ;;
+    --version) VERSION="$2"; shift ;;
     --package-only) PACKAGE_ONLY=true ;;
     -h|--help)
       sed -n '2,20p' "$0"
       exit 0
       ;;
-    *) fail "unknown argument: $1 (try --release or --package-only)" ;;
+    *) fail "unknown argument: $1 (try --version X.Y.Z or --package-only)" ;;
   esac
   shift
 done
 
+VERSION_CODE=""
+if [ -n "$VERSION" ]; then
+  if ! printf '%s' "$VERSION" | grep -Eq '^[0-9]+\.[0-9]+\.[0-9]+$'; then
+    fail "invalid --version '$VERSION' (expected X.Y.Z)"
+  fi
+  major="${VERSION%%.*}"
+  rest="${VERSION#*.}"
+  minor="${rest%%.*}"
+  patch="${rest##*.}"
+  VERSION_CODE=$((major * 10000 + minor * 100 + patch))
+fi
+
 # --------------------------------------------------------------- preconditions
 if [ ! -f "$ANDROID_DIR/settings.gradle" ] || [ ! -f "$ANDROID_DIR/gradlew" ]; then
   fail "love-android not found at mobile/android/.
@@ -74,10 +84,10 @@ apply_android_branding() {
 
   say "applying Android branding (gradle.properties + permission trim)"
 
-  python3 - "$props" "$APPLICATION_ID" "$APP_NAME" <<'PY'
+  python3 - "$props" "$APPLICATION_ID" "$APP_NAME" "$VERSION" "$VERSION_CODE" <<'PY'
 import pathlib, re, sys
 path = pathlib.Path(sys.argv[1])
-app_id, name = sys.argv[2], sys.argv[3]
+app_id, name, version, version_code = sys.argv[2], sys.argv[3], sys.argv[4], sys.argv[5]
 text = path.read_text()
 
 def set_prop(text, key, value):
@@ -91,7 +101,10 @@ def set_prop(text, key, value):
 text = re.sub(r"(?m)^app\.name_byte_array=.*\n?", "", text)
 text = set_prop(text, "app.name", name)
 text = set_prop(text, "app.application_id", app_id)
-text = set_prop(text, "app.orientation", "portrait")
+text = set_prop(text, "app.orientation", "fullUser")
+if version:
+    text = set_prop(text, "app.version_name", version)
+    text = set_prop(text, "app.version_code", version_code)
 path.write_text(text)
 PY
 
@@ -124,7 +137,7 @@ pack_game_love() {
   mkdir -p "$EMBED_ASSETS"
   rm -f "$LOVE_FILE"
   (cd "$ROOT" && zip -q -9 -r "$LOVE_FILE" \
-    main.lua conf.lua src data assets tools/rom_manifest.json \
+    main.lua conf.lua src data assets tools/rom_manifest.json tools/rom_manifest_blue.json \
     -x '*.DS_Store' -x '*/.git/*' -x '*/.DS_Store' \
     -x 'data/generated/*' -x 'assets/generated/*')
   if unzip -Z1 "$LOVE_FILE" \
@@ -178,16 +191,8 @@ require_android_sdk() {
 
 # --------------------------------------------------------------- gradle
 run_gradle() {
-  local task
-  if $RELEASE; then
-    task="assembleEmbedNoRecordRelease"
-    say "building release APK ($task)"
-    warn "release signing is out-of-band,  see mobile/ANDROID.md (Signing)."
-    warn "without a signingConfig, assembleRelease may produce an unsigned APK or fail."
-  else
-    task="assembleEmbedNoRecordDebug"
-    say "building debug APK ($task),  uses the default Android debug keystore"
-  fi
+  local task="assembleEmbedNoRecordDebug"
+  say "building APK ($task)"
 
   if ! (
     cd "$ANDROID_DIR"
@@ -199,19 +204,12 @@ run_gradle() {
   You can still iterate on the .love payload with: scripts/build_android.sh --package-only"
   fi
 
-  local out_dir
-  if $RELEASE; then
-    out_dir="$ANDROID_DIR/app/build/outputs/apk/embedNoRecord/release"
-  else
-    out_dir="$ANDROID_DIR/app/build/outputs/apk/embedNoRecord/debug"
-  fi
+  local out_dir="$ANDROID_DIR/app/build/outputs/apk/embedNoRecord/debug"
   if [ -d "$out_dir" ]; then
     say "APK output:"
     find "$out_dir" -name '*.apk' -exec ls -lh {} \;
 
-    local flavor="debug"
-    $RELEASE && flavor="release"
-    local dist_dir="$DIST/$flavor"
+    local dist_dir="$DIST/debug"
     rm -rf "$dist_dir"
     mkdir -p "$dist_dir"
     find "$out_dir" -name '*.apk' -exec cp {} "$dist_dir/" \;

scripts/build_ios.sh

@@ -15,8 +15,8 @@
 #   - mobile/ios/love-src/ (see --fetch / mobile/ios/README.md)
 #   - prebuilt iOS libraries under love-src/platform/xcode/ios/libraries/
 #
-# Output: dist/ios/<Config>-<sdk>/PokemonRed.app (convenience copy)
-#         mobile/ios/build/Build/Products/<Config>-<sdk>/PokemonRed.app
+# Output: dist/ios/<Config>-<sdk>/gen1recomp.app (convenience copy)
+#         mobile/ios/build/Build/Products/<Config>-<sdk>/gen1recomp.app
 
 set -euo pipefail
 
@@ -33,8 +33,8 @@ RESOURCES_DIR="$XCODE_DIR/ios/resources"
 LOVE_FILE="$RESOURCES_DIR/game.love"
 LIBS_DIR="$XCODE_DIR/ios/libraries"
 
-APP_NAME="PokemonRed"
-DISPLAY_NAME="Pokemon Red"
+APP_NAME="gen1recomp"
+DISPLAY_NAME="gen1recomp"
 BUNDLE_ID="com.theboisclub.pokemonred"
 LOVE_VERSION="$(tr -d '[:space:]' < "$IOS_DIR/LOVE_VERSION" 2>/dev/null || echo 11.5)"
 IOS_SOURCE_ZIP="love-${LOVE_VERSION}-ios-source.zip"
@@ -155,7 +155,7 @@ require_ios_libraries
 apply_ios_branding() {
   [ -f "$OVERLAY_PLIST" ] || fail "missing overlay plist: $OVERLAY_PLIST"
   local dest="$XCODE_DIR/ios/love-ios.plist"
-  say "applying iOS branding (portrait-only Info.plist, display name)"
+  say "applying iOS branding (portrait + landscape Info.plist, display name)"
   cp "$OVERLAY_PLIST" "$dest"
 }
 
@@ -166,7 +166,7 @@ pack_game_love() {
   rm -f "$LOVE_FILE"
   # Same payload as scripts/build.sh / build_android.sh: game sources only.
   (cd "$ROOT" && zip -q -9 -r "$LOVE_FILE" \
-    main.lua conf.lua src data assets tools/rom_manifest.json \
+    main.lua conf.lua src data assets tools/rom_manifest.json tools/rom_manifest_blue.json \
     -x '*.DS_Store' -x '*/.git/*' -x '*/.DS_Store' \
     -x 'data/generated/*' -x 'assets/generated/*')
   if unzip -Z1 "$LOVE_FILE" \

scripts/test.sh

@@ -78,23 +78,14 @@ run_tier "T4 mod-SDK" "$LUA" tests/run_modkit.lua
 # ------- content tier: only meaningful with an imported ROM
 
 
-# tests/run_tests.lua carries two pre-existing failures that are stale
-# about the chip-audio architecture rather than real defects:
-#
-#   Pikachu cry WAV exists        nothing writes .wav any more -- cries are
-#                                 synthesized at play time from
-#                                 Data.audio.cries + programs.bin
-#   low-health alarm sfx extracted  the importer deliberately does not
-#                                 extract it; Sound.startLoop falls back to
-#                                 ChipAudio.newLowHealthAlarm (Sound.lua:268)
-#
-# They are left in place (fixing them is a separate, reviewed change), so
-# the tier passes on exactly this baseline and fails the moment a third
-# failure appears or one of these two changes identity.  Ignoring the exit
-# code outright would hide every future content regression.
-KNOWN_CONTENT_FAILURES=2
-KNOWN_CONTENT_LINES="FAIL Pikachu cry WAV exists
-FAIL low-health alarm sfx extracted"
+# tests/run_tests.lua is expected to be clean.  It used to carry two stale
+# chip-audio assertions on the allowlist below (Pikachu cry WAV exists /
+# low-health alarm sfx extracted); both have since been fixed, so the
+# baseline is zero and any failure fails the tier.  Keep the allowlist
+# mechanism rather than ignoring the exit code -- that would hide every
+# future content regression.
+KNOWN_CONTENT_FAILURES=0
+KNOWN_CONTENT_LINES=""
 
 run_content_behavior() {
   local out
@@ -107,7 +98,9 @@ run_content_behavior() {
   if [ "$count" -eq "$KNOWN_CONTENT_FAILURES" ] \
      && [ "$lines" = "$(printf '%s\n' "$KNOWN_CONTENT_LINES" | sort)" ]; then
     printf '%s\n' "$out" | tail -3
-    echo "(the $KNOWN_CONTENT_FAILURES known stale audio assertions, unchanged)"
+    if [ "$KNOWN_CONTENT_FAILURES" -gt 0 ]; then
+      echo "(the $KNOWN_CONTENT_FAILURES known stale assertions, unchanged)"
+    fi
     return 0
   fi
 

src/battle/AnimPlayer.lua

@@ -144,6 +144,25 @@ function AnimPlayer.new(data)
   }, AnimPlayer)
 end
 
+-- Release the tilesheet images and quads this player built.  They live in
+-- per-instance caches (a fresh AnimPlayer is made per battle), so unlike a
+-- shared module cache they are dead the moment the battle ends -- freeing
+-- them here instead of waiting on a GC finalizer keeps grinding battles
+-- from piling orphaned VRAM up faster than the (Lua-heap-triggered) GC
+-- reclaims it.
+function AnimPlayer:release()
+  for _, img in pairs(self.images) do
+    if img and img.release then pcall(img.release, img) end
+  end
+  self.images = {}
+  for _, byTile in pairs(self.quads) do
+    for _, q in pairs(byTile) do
+      if q and q.release then pcall(q.release, q) end
+    end
+  end
+  self.quads = {}
+end
+
 function AnimPlayer:warnOnce(key, fmt, ...)
   if not self.warned[key] then
     self.warned[key] = true

src/battle/BattleState.lua

@@ -106,19 +106,25 @@ end
 
 Assets.register(BattleState.invalidate)
 
--- the species' SGB palette (data/pokemon/palettes.asm), or nil
+-- the species' SGB palette (active COLORS pack), or nil
 local function monPalette(data, species)
-  local p = data.palettes
-  local name = p and p.pokemon[species]
-  local colors = name and p.palettes[name]
-  return colors and { name = name, colors = colors } or nil
+  local PaletteFX = require("src.render.PaletteFX")
+  local colors = PaletteFX.monPal(data, species)
+  if not colors then return nil end
+  local name = PaletteFX.monPalName(data, species)
+  -- prefix so GBC vs RED++ cache keys don't collide on shared names
+  if PaletteFX.usesGbcPack() then name = "redpp:" .. name end
+  return { name = name, colors = colors }
 end
 
--- a named palette from data/generated/palettes.lua as a getImage pal
+-- a named palette from the active COLORS pack as a getImage pal
 local function namedPalette(data, name)
-  local p = data.palettes
-  local colors = p and p.palettes[name]
-  return colors and { name = name, colors = colors } or nil
+  local PaletteFX = require("src.render.PaletteFX")
+  local colors = PaletteFX.pal(data, name)
+  if not colors then return nil end
+  local key = name
+  if PaletteFX.usesGbcPack() then key = "redpp:" .. name end
+  return { name = key, colors = colors }
 end
 
 -- The battle-BGP fade variant of a pic (AnimationFlashScreen and the
@@ -264,8 +270,10 @@ function BattleState:speciesSprite(species, isPlayerSide)
   if not def then return nil end
   local PaletteFX = require("src.render.PaletteFX")
   local colors = PaletteFX.monPal(self.data, species, true)
+  local name = "GRAYMON"
+  if PaletteFX.usesGbcPack() then name = "redpp:GRAYMON" end
   return getImage(isPlayerSide and def.spriteBack or def.spriteFront,
-                  colors and { name = "GRAYMON", colors = colors } or nil,
+                  colors and { name = name, colors = colors } or nil,
                   def.trueColor)
 end
 
@@ -414,8 +422,17 @@ end
 function BattleState.newTrainer(game, oppClass, partyIndex)
   local self = newBattle(game)
   self.kind = "trainer"
+  self.oppClass = oppClass
   self.trainer = game.data.trainers[oppClass]
   assert(self.trainer, "unknown trainer class " .. tostring(oppClass))
+  -- pret GetTrainerName_: RIVAL1/2/3 copy wRivalName into wTrainerName
+  -- instead of TrainerNames ("RIVAL1" etc.).  Overlay so we don't mutate
+  -- the shared data table.
+  if oppClass == "OPP_RIVAL1" or oppClass == "OPP_RIVAL2"
+     or oppClass == "OPP_RIVAL3" then
+    local rivalName = (game.save.player and game.save.player.rival) or "BLUE"
+    self.trainer = setmetatable({ name = rivalName }, { __index = self.trainer })
+  end
   self.enemyAIMods = self.trainer.aiMods
   local partyDef = self.trainer.parties[partyIndex or 1]
   assert(partyDef, ("trainer %s has no party %s"):format(oppClass, tostring(partyIndex)))
@@ -618,7 +635,6 @@ function BattleState:startMessage(item)
     self.total = self.total + #codes
   end
   self.charIndex = 0
-  self.holdTimer = nil
 end
 
 function BattleState:updateQueue()
@@ -769,9 +785,8 @@ function BattleState:updateQueue()
   if self.charIndex < self.total then
     self.charIndex = math.min(self.total, self.charIndex + 2)
   else
-    self.holdTimer = (self.holdTimer or 40) - 1
     local input = self.game.input
-    if self.holdTimer <= 0 or input:wasPressed("a") or input:wasPressed("b") then
+    if input:wasPressed("a") or input:wasPressed("b") then
       self.current = nil
     end
   end
@@ -919,6 +934,20 @@ end
 -- (end_of_battle.asm clears wLowHealthAlarm when a battle ends)
 function BattleState:exit()
   require("src.core.Sound").stopLoop("Low_Health_Alarm")
+  -- Free this battle's own GPU objects now rather than waiting on a GC
+  -- finalizer: the two full-screen wavy-effect canvases (colorMode) and
+  -- the AnimPlayer's per-instance tilesheet images/quads.  The shared
+  -- module caches (imageCache/imagePadBottom, keyed by path+palette) are
+  -- reused by the next battle, so they are deliberately left alone -- only
+  -- the per-instance objects, which are dead once this battle is popped,
+  -- are released here.
+  local function rel(o) if o and o.release then pcall(o.release, o) end end
+  rel(self.bgCanvas); self.bgCanvas = nil
+  rel(self.waveCanvas); self.waveCanvas = nil
+  self.colorFxReady = nil
+  if self.animPlayer and self.animPlayer.release then
+    self.animPlayer:release()
+  end
 end
 
 -- An action the battler is locked into (bypasses the menu), or nil.
@@ -951,6 +980,25 @@ function BattleState:playerHasPP()
   return false
 end
 
+function BattleState:swapMoves(i, j)
+  if i == j then return end
+  local moves = self.player.curMoves
+  local a, b = moves[i], moves[j]
+  if not (a and b) then return end
+  moves[i], moves[j] = b, a
+  local stored = self.player.mon and self.player.mon.moves
+  if stored and stored ~= moves and stored[i] and stored[j] then
+    stored[i], stored[j] = stored[j], stored[i]
+  end
+  local disabled = self.player.disabledSlot
+  if disabled == i then
+    self.player.disabledSlot = j
+  elseif disabled == j then
+    self.player.disabledSlot = i
+  end
+  require("src.core.Sound").play(self.data, "Swap")
+end
+
 function BattleState:update(dt)
   self.frame = self.frame + 1
   self:updateFx()
@@ -1064,6 +1112,7 @@ function BattleState:update(dt)
         end
         self.phase = "moveSelect"
         self.moveIndex = math.min(self.moveIndex, #self.player.curMoves)
+        self.moveSwapIndex = nil
       elseif choice == "run" then
         self:tryRun()
       elseif choice == "item" then
@@ -1081,9 +1130,22 @@ function BattleState:update(dt)
       self.moveIndex = self.moveIndex > 1 and self.moveIndex - 1 or #moves
     elseif input:wasPressed("down") then
       self.moveIndex = self.moveIndex < #moves and self.moveIndex + 1 or 1
+    elseif input:wasPressed("select") then
+      if self.moveSwapIndex then
+        self:swapMoves(self.moveSwapIndex, self.moveIndex)
+        self.moveSwapIndex = nil
+      else
+        self.moveSwapIndex = self.moveIndex
+      end
     elseif input:wasPressed("b") then
+      self.moveSwapIndex = nil
       self.phase = "menu"
     elseif input:wasPressed("a") then
+      if self.moveSwapIndex then
+        self:swapMoves(self.moveSwapIndex, self.moveIndex)
+        self.moveSwapIndex = nil
+        return
+      end
       local mv = moves[self.moveIndex]
       if self.player.disabledSlot == self.moveIndex then
         self:say("The move is\ndisabled!")
@@ -1484,10 +1546,16 @@ function BattleState:endOfTurn()
   -- that sets the flag also zeroes the counter, so a stale value is
   -- unobservable (a switch or cure downgrades Toxic to plain poison).
   self.sideToxic = self.sideToxic or {}
-  for _, pair in ipairs({ { self.player, self.enemy, "player" },
-                          { self.enemy, self.player, "enemy" } }) do
-    local b, opp, side = pair[1], pair[2], pair[3]
-    if b.mon.hp > 0 then
+  -- a battler whose opponent was already knocked out by a move this turn
+  -- skips its own residual (HandlePoisonBurnLeechSeed is bypassed when the
+  -- move faints the target); snapshot before residual so one side's
+  -- residual faint can't suppress the other's
+  local playerAlive = self.player.mon.hp > 0
+  local enemyAlive = self.enemy.mon.hp > 0
+  for _, pair in ipairs({ { self.player, self.enemy, "player", enemyAlive },
+                          { self.enemy, self.player, "enemy", playerAlive } }) do
+    local b, opp, side, oppAlive = pair[1], pair[2], pair[3], pair[4]
+    if b.mon.hp > 0 and oppAlive then
       local msgs = Status.residual(b, opp, self)
       for _, m in ipairs(msgs) do self:sayNext(prefixEnemy(m, b)) end
       if #msgs > 0 then self:drainNext() end -- poison/burn/seed HP moved
@@ -1547,6 +1615,25 @@ function BattleState:animationsOn()
   return not o or o.animations ~= false
 end
 
+-- Drop the announcement-time move-anim row.  Gen 1 queues PlayMoveAnimation
+-- only after MoveHitTest / the effect lands (HandleIfPlayerMoveMissed skips
+-- it on a miss unless EXPLODE_EFFECT); we insert early for blink attachment
+-- and peel it back on miss/fail paths.
+function BattleState:cancelMoveAnim()
+  local row = self.moveAnimRow
+  if not row then return end
+  self.moveAnimRow = nil
+  for i, item in ipairs(self.queue) do
+    if item == row then
+      table.remove(self.queue, i)
+      if self.nextInsert and i <= self.nextInsert then
+        self.nextInsert = self.nextInsert - 1
+      end
+      return
+    end
+  end
+end
+
 -- ------------------------------------------------------------------
 -- special-effect (SE_*) implementations.  Palette effects are BGP
 -- shade maps ({[i] = shade color index i displays as}); on the SGB the
@@ -2151,6 +2238,20 @@ end
 -- Decomposed into a staged pipeline over the merged move_effects record:
 -- announcement -> callsMove -> charge -> perform -> primary run -> the
 -- damaging pipeline (EffectRegistry.runDamaging).
+
+-- Gen 1 status/stat primary effects call PlayCurrentMoveAnimation only
+-- after they land; these failure texts print with no animation.
+local function primaryEffectFailed(msgs)
+  if not msgs or #msgs == 0 then return true end
+  local m = msgs[1]
+  if m == "But, it failed!" or m == "Nothing happened!" then return true end
+  if m:find("didn't affect", 1, true) then return true end
+  if m:find("is unaffected", 1, true) then return true end
+  if m:find("protected by MIST", 1, true) then return true end
+  if m:find("Already", 1, true) then return true end
+  return false
+end
+
 function BattleState:performMove(user, target, moveInst, isCalled)
   local move = self:moveDef(moveInst)
   if not move then
@@ -2198,6 +2299,11 @@ function BattleState:performMove(user, target, moveInst, isCalled)
   -- already said its failure text
   if record and record.callsMove then
     local pick = record.callsMove(ctx)
+    -- Mirror Move never plays its own anim (MetronomePickMove does;
+    -- MirrorMoveCopyMove only reloads the copied move or prints fail)
+    if move.id == "MIRROR_MOVE" or not pick then
+      self:cancelMoveAnim()
+    end
     if pick then
       self:performMove(user, target, { id = pick, pp = 1 }, true)
     end
@@ -2210,6 +2316,7 @@ function BattleState:performMove(user, target, moveInst, isCalled)
   -- falling back to the id tables (Fly AND Dig go semi-invulnerable:
   -- ChargeEffect sets INVULNERABLE for both)
   if record and record.charge and not releasing then
+    self:cancelMoveAnim()
     user.charging = moveInst
     user.chargeReady = true
     local invulnerable = move.semiInvulnerable
@@ -2219,6 +2326,15 @@ function BattleState:performMove(user, target, moveInst, isCalled)
     if invulnerable then
       user.invulnerable = true
     end
+    local chargeAnim = record.charge.anim
+    if move.id == "DIG" then
+      chargeAnim = "SLIDE_DOWN_ANIM"
+    elseif record.charge.enemyAnim and not user.isPlayer then
+      chargeAnim = record.charge.enemyAnim
+    end
+    if chargeAnim then
+      self:animNext(chargeAnim, user.isPlayer)
+    end
     local chargeText = move.chargeText or CHARGE_TEXT[move.id]
                        or "%s\nis charging up!"
     self:sayNext(chargeText:format(displayName(user)))
@@ -2240,10 +2356,19 @@ function BattleState:performMove(user, target, moveInst, isCalled)
     if record.accuracyChecked
        and (target.invulnerable
             or not self:accuracyRoll(move, user, target)) then
+      -- SleepEffect/PoisonEffect/... call PlayCurrentMoveAnimation only
+      -- after the effect lands; a miss skips it
+      self:cancelMoveAnim()
       self:sayNext(("%s's\nattack missed!"):format(displayName(user)))
       return
     end
-    for _, m in ipairs(record.run(ctx)) do
+    local msgs = record.run(ctx)
+    -- Gen 1 status/stat effects animate only when they take effect
+    -- (AlreadyAsleep / NothingHappened / ButItFailed print with no anim)
+    if primaryEffectFailed(msgs) then
+      self:cancelMoveAnim()
+    end
+    for _, m in ipairs(msgs) do
       self:sayNext(m)
     end
     self:drainNext() -- REST/RECOVER/SOFTBOILED move the user's bar
@@ -2251,6 +2376,7 @@ function BattleState:performMove(user, target, moveInst, isCalled)
   end
   if move.power == 0 and not (record and record.kind == "full") then
     MoveEffects.warnUnknown(move.effect)
+    self:cancelMoveAnim()
     self:sayNext("But, it failed!")
     return
   end
@@ -2290,6 +2416,7 @@ function BattleState:continueBide(user, target)
   local dmg = (user.bideDamage or 0) * 2
   user.bideTurns, user.bideDamage = nil, nil
   if dmg <= 0 then
+    self:cancelMoveAnim()
     self:sayNext("But, it failed!")
     return
   end
@@ -2335,6 +2462,9 @@ end
 function BattleState:onFaint(battler)
   if battler.faintQueued then return end
   battler.faintQueued = true
+  if battler.isPlayer and self.participants then
+    self.participants[battler.mon] = nil
+  end
   Runtime.emit("battle.fainted", { battle = self, battler = battler })
   -- the faint slide + cry ride the queue (after the move animation and
   -- the HP-bar drain, pokered's order); the slide finishes before the
@@ -2371,9 +2501,9 @@ function BattleState:enemyMonFainted()
   -- exp is split among the mons that fought this enemy
   -- (engine/battle/experience.asm); traded mons earn x1.5; each
   -- participant gets the full stat exp
-  -- the divisor counts EVERY participant, fainted ones included
-  -- (DivideExpDataByNumMonsGainingExp keeps their flag bits); only the
-  -- living ones are actually paid
+  -- a mon that fainted mid-fight has had its gain-exp flag cleared
+  -- (RemoveFaintedPlayerMon), so it drops out of the divisor and only
+  -- the surviving participants are counted and paid
   local participants, alive = 0, {}
   for _, mon in ipairs(self.game.save.party) do
     if self.participants and self.participants[mon] then
@@ -2558,16 +2688,53 @@ function BattleState:learnMove(mon, moveId)
   end)
 end
 
+-- Map the battle was fought on (overworld wins; save.player.map is fallback).
+function BattleState.currentMapId(self)
+  local game = self.game
+  local ow = game and game.overworld
+  if ow and ow.map then return ow.map.id end
+  local player = game and game.save and game.save.player
+  return player and player.map
+end
+
+-- pret HandlePlayerBlackOut: OPP_RIVAL1 in OAKS_LAB prints Rival1WinText
+-- and returns without blacking out.  OaksLabRivalEndBattleScript then heals.
+function BattleState.isOaksLabStarterRival(self)
+  return self.oppClass == "OPP_RIVAL1"
+    and BattleState.currentMapId(self) == "OAKS_LAB"
+end
+
 function BattleState:playerMonFainted()
-  if self.result then return end -- double faint: the battle is decided
   local nextMon = Party.firstHealthy(self.game.save.party)
-  if not nextMon then
-    self:sayNext(("%s is out of\nuseable POKéMON!"):format(self.game.save.player.name))
-    self:sayNext(("%s blacked\nout!"):format(self.game.save.player.name))
+  -- Being out of useable POKéMON blacks you out even when the battle was
+  -- already decided in our favour.  A double faint -- our last mon dying
+  -- to residual damage on the turn it lands the KO -- used to hit the
+  -- "battle is decided" guard below and return with result = "win", so
+  -- afterBattle never took the lose branch: no revive, no warp to the
+  -- heal point, and the player was left standing on the map with a party
+  -- at 0 HP.  Nothing recovers from that state (every later encounter
+  -- aborts with "no healthy party"), and it is not reachable in pokered:
+  -- HandlePlayerMonFainted runs the player-side check on its own, so
+  -- losing your last mon always blacks you out whatever the enemy did.
+  -- Exception: the Oak's Lab starter rival (HandlePlayerBlackOut).
+  if not nextMon and self.result ~= "lose" then
+    if self.oppClass == "OPP_RIVAL1" then
+      local TextBox = require("src.render.TextBox")
+      local raw = (self.data.text and self.data.text._Rival1WinText)
+        or "{RIVAL}: Yeah! Am\nI great or what?"
+      self:sayNext(TextBox.substitute(self.game, raw))
+    end
+    -- Oak's Lab starter rival: Rival1WinText only (no blackout lines).
+    -- Any other wipe, including Route 22 RIVAL1, still blacks out.
+    if not BattleState.isOaksLabStarterRival(self) then
+      self:sayNext(("%s is out of\nuseable POKéMON!"):format(self.game.save.player.name))
+      self:sayNext(("%s blacked\nout!"):format(self.game.save.player.name))
+    end
     self.result = "lose"
     self.afterQueue = "finish"
     return
   end
+  if self.result then return end -- double faint: the battle is decided
   -- DoUseNextMonDialogue (core.asm:1052-1078): only WILD battles ask
   -- "Use next POKéMON?"; NO goes through the run check with party slot
   -- 1's speed, and a failed run still forces the party menu.  Trainer
@@ -2646,6 +2813,7 @@ function BattleState:safariAction(choice)
   local playerName = self.game.save.player.name
 
   if choice == "run" then
+    require("src.core.Sound").play(self.data, "Run")
     self:say("Got away safely!")
     self.result = "run"
     self.afterQueue = "finish"
@@ -2727,6 +2895,12 @@ function BattleState:safariEnemyTurn()
     end
     if fled then
       self:sayNext(("Wild %s\nran!"):format(self.enemy.name))
+      self:actNext(function()
+        require("src.core.Sound").play(self.data, "Run")
+        startPicKind(self:picFxFor(self.enemy), "slideOff")
+      end)
+      self.nextInsert = (self.nextInsert or 0) + 1
+      table.insert(self.queue, self.nextInsert, { wait = 24 })
       self.result = "run"
       self.afterQueue = "finish"
     end
@@ -3026,6 +3200,19 @@ function BattleState:finish()
     self.phase = "messages"
     return
   end
+  -- Invariant: a battle can never hand the overworld a party with nothing
+  -- healthy in it -- except the Oak's Lab starter rival, where pret skips
+  -- the blackout and OaksLabRivalEndBattleScript HealParty's immediately.
+  -- afterBattle only revives and warps to the heal point on a normal
+  -- "lose", so any other result here strands the player at 0 HP with no
+  -- way back -- an unrecoverable state, not merely a wrong one.
+  -- playerMonFainted is the path that should have caught this; if we land
+  -- here it did not, so say so rather than silently papering over it.
+  if self.result ~= "lose" and not Party.firstHealthy(self.game.save.party) then
+    Logger.warn("battle finished %s with no healthy party; forcing blackout",
+                tostring(self.result))
+    self.result = "lose"
+  end
   self.lockedBall = nil
   -- pokered never writes Mimic's copy into the party struct; leaving
   -- battle discards the battle copy, so the original ids come back
@@ -3343,9 +3530,10 @@ function BattleState:colorMode()
   if self.colorFxReady == nil then
     local ready = false
     local g = love and love.graphics
+    local PaletteFX = require("src.render.PaletteFX")
     if g and g.newCanvas and g.setScissor and g.setShader and g.getCanvas
-       and love.image and self.data.palettes
-       and require("src.render.PaletteFX").shader() then
+       and love.image and PaletteFX.pack(self.data)
+       and PaletteFX.shader() then
       local ok1, bg = pcall(g.newCanvas, 160, 144)
       local ok2, wv = pcall(g.newCanvas, 160, 144)
       if ok1 and ok2 and bg and wv then
@@ -3364,9 +3552,10 @@ end
 -- PAL_MEWMON (= MonsterPalettes[0]) while a side still shows its
 -- trainer/back pic (the species bytes are 0 then).
 function BattleState:sgbBattlePals()
-  local pals = self.data.palettes and self.data.palettes.palettes
-  if not pals then return nil end
   local PaletteFX = require("src.render.PaletteFX")
+  local pack = PaletteFX.pack(self.data)
+  local pals = pack and pack.palettes
+  if not pals then return nil end
   local function bar(b)
     if not b then return pals.GREENBAR end
     local hp = b.shownHP or b.mon.hp
@@ -3374,15 +3563,30 @@ function BattleState:sgbBattlePals()
   end
   local function mon(b, placeholder)
     if placeholder or not b then return pals.MEWMON or pals.GREENBAR end
-    local name = self.data.palettes.pokemon[b.mon.species]
-    return pals[name] or pals.MEWMON
+    return PaletteFX.monPal(self.data, b.mon.species) or pals.MEWMON
   end
-  return {
+  local out = {
     [0] = bar(self.player),
     [1] = bar(self.enemy),
     [2] = mon(self.player, self.showPlayerBack or self.safari or self.demo),
     [3] = mon(self.enemy, self.showEnemyTrainer),
   }
+  -- OG RED: the Game Boy Color drew the whole battle from one BG palette --
+  -- white paper, black ink -- so every zone shares the same background and
+  -- outline; only the two mid shades differ per element (green HP bar, red
+  -- mon pic).  The bar/base zones otherwise carry the SGB off-white
+  -- (255,239,255) as color 0 while the mon zones (monPal -> GBC_BG) carry a
+  -- true white, which is what drew a white box around each pic on the pink
+  -- field.  Snap every zone's color 0/3 to the global GBC white/black; the
+  -- mid shades (and the green bar the user prefers) stay untouched.
+  if PaletteFX.mode == "ogred" then
+    local white, black = PaletteFX.GBC_BG[1], PaletteFX.GBC_BG[4]
+    for i = 0, 3 do
+      local c = out[i]
+      out[i] = { white, c[2], c[3], black }
+    end
+  end
+  return out
 end
 
 -- the SGB palette covering a screen pixel (BlkPacket_Battle regions)
@@ -3709,7 +3913,11 @@ function BattleState:drawTextArea()
     for i, mv in ipairs(self.player.curMoves) do
       Font.draw(self.data.moves[mv.id].name, 48, 96 + i * 8)
     end
-    Font.drawCode(0xED, 40, 96 + self.moveIndex * 8)
+    Font.drawCode((self.moveSwapIndex == self.moveIndex) and 0xEC or 0xED,
+                  40, 96 + self.moveIndex * 8)
+    if self.moveSwapIndex and self.moveSwapIndex ~= self.moveIndex then
+      Font.drawCode(0xEC, 40, 96 + self.moveSwapIndex * 8)
+    end
     local sel = self.player.curMoves[self.moveIndex]
     if sel then
       if self.player.disabledSlot == self.moveIndex then

src/battle/EffectRegistry.lua

@@ -89,6 +89,8 @@ function EffectRegistry.runDamaging(battle, ctx, record)
   -- Swift ignores semi-invulnerability (MoveHitTest returns hit for
   -- SWIFT_EFFECT before the INVULNERABLE check)
   if target.invulnerable and not neverMiss then
+    -- Explosion/Selfdestruct still animate on a miss (HandleIfPlayerMoveMissed)
+    if not (record and record.explode) then battle:cancelMoveAnim() end
     battle:sayNext(("%s's\nattack missed!"):format(displayName(user)))
     return
   end
@@ -97,6 +99,7 @@ function EffectRegistry.runDamaging(battle, ctx, record)
   if record and record.gate then
     local ok, failMsg = record.gate(ctx)
     if not ok then
+      battle:cancelMoveAnim()
       if failMsg then battle:sayNext(failMsg) end
       return
     end
@@ -108,6 +111,8 @@ function EffectRegistry.runDamaging(battle, ctx, record)
 
   if not neverMiss then
     if not battle:accuracyRoll(move, user, target) then
+      -- Explosion/Selfdestruct still animate on a miss (HandleIfPlayerMoveMissed)
+      if not (record and record.explode) then battle:cancelMoveAnim() end
       battle:sayNext(("%s's\nattack missed!"):format(displayName(user)))
       -- Jump Kick crash, Explode self-destruct
       if record and record.onMiss then record.onMiss(ctx, "accuracy") end
@@ -134,6 +139,7 @@ function EffectRegistry.runDamaging(battle, ctx, record)
       end
     end
     if not counterable or (battle.lastDamage or 0) == 0 then
+      battle:cancelMoveAnim()
       battle:sayNext(("%s's\nattack missed!"):format(displayName(user)))
       return
     end
@@ -144,6 +150,7 @@ function EffectRegistry.runDamaging(battle, ctx, record)
     -- failed with that text already chosen
     local chosen, extra = record.chooseDamage(ctx)
     if not chosen then
+      battle:cancelMoveAnim()
       if extra then battle:sayNext(extra) end
       return
     end
@@ -154,12 +161,15 @@ function EffectRegistry.runDamaging(battle, ctx, record)
   end
 
   if info.typeMult == 0 then
+    -- type immunity zeros damage and sets wMoveMissed in Gen 1, so no anim
+    if not (record and record.explode) then battle:cancelMoveAnim() end
     battle:sayNext(("It doesn't affect\n%s!"):format(displayName(target)))
     if record and record.onMiss then record.onMiss(ctx, "immune") end
     return
   end
   if info.missed then
     -- 0.25x floored the damage to zero: the original registers a miss
+    if not (record and record.explode) then battle:cancelMoveAnim() end
     battle:sayNext(("%s's\nattack missed!"):format(displayName(user)))
     if record and record.onMiss then record.onMiss(ctx, "floored") end
     return

src/battle/MoveEffects.lua

@@ -516,8 +516,8 @@ MoveEffects.full = {
 
   -- charge moves: first turn just charges; Fly AND Dig go
   -- semi-invulnerable (ChargeEffect sets INVULNERABLE for both)
-  CHARGE_EFFECT = { charge = {} },
-  FLY_EFFECT = { charge = { invulnerable = true } },
+  CHARGE_EFFECT = { charge = { anim = "XSTATITEM_ANIM", enemyAnim = "XSTATITEM_DUPLICATE_ANIM" } },
+  FLY_EFFECT = { charge = { invulnerable = true, anim = "TELEPORT" } },
 
   TRAPPING_EFFECT = {
     -- TrappingEffect runs BEFORE the hit test and clears the target's
@@ -616,6 +616,7 @@ MoveEffects.full = {
     -- roll is below opponentLevel/4.  Teleport's failure text is "But
     -- it failed!", Roar/Whirlwind's is DidntAffectText; in trainer
     -- battles Teleport fails and Roar/Whirlwind are "unaffected".
+    -- Fail paths DelayFrames then print -- no PlayCurrentMoveAnimation.
     perform = function(ctx)
       local battle, user, target, move = ctx.battle, ctx.user, ctx.target, ctx.move
       if battle.kind == "wild" then
@@ -635,13 +636,17 @@ MoveEffects.full = {
           battle.result = "run"
           battle.afterQueue = "finish"
         elseif move.id == "TELEPORT" then
+          battle:cancelMoveAnim()
           ctx.say("But, it failed!")
         else
+          battle:cancelMoveAnim()
           ctx.say(("It didn't affect\n%s!"):format(displayName(target)))
         end
       elseif move.id == "TELEPORT" then
+        battle:cancelMoveAnim()
         ctx.say("But, it failed!")
       else
+        battle:cancelMoveAnim()
         ctx.say(("%s\nis unaffected!"):format(displayName(target)))
       end
     end,

src/core/ChipSynth.lua

@@ -0,0 +1,760 @@
+-- Pure Game Boy audio synthesis (the DMG/GBC channel-program interpreter and
+-- PCM renderer), factored out of ChipAudio so it can run on EITHER the main
+-- thread (SFX/cries, and the synchronous music fallback) or the ChipAudio
+-- worker thread (src/core/chip_worker.lua), which is where map/battle music is
+-- synthesized so a song change never stutters the render thread.
+--
+-- Deliberately depends ONLY on `bit`, love.sound and love.filesystem: no
+-- love.audio (Sources are a playback concern the caller owns) and no
+-- src.render.Assets (hot-reload registration stays in ChipAudio).  Both of
+-- those are unavailable or main-thread-only inside a love.thread worker, so
+-- keeping them out is what lets the same synth code run in the worker.
+
+local bit = require("bit")
+
+local ChipSynth = {}
+
+local SAMPLE_RATE = 22050
+local TICKS_PER_SECOND = 15360
+local FRAME_TICKS = 256
+local GB_CLOCK = 4194304
+
+-- one 4096-sample stereo SoundData is the unit both the worker hands off and
+-- the synchronous fallback queues; the source keeps MUSIC_BUFFER_COUNT of them
+-- (~6s) for stall tolerance (window resize, a long GC pause)
+local MUSIC_BUFFER_SAMPLES = 4096
+local MUSIC_BUFFER_COUNT = 32
+
+ChipSynth.SAMPLE_RATE = SAMPLE_RATE
+ChipSynth.MUSIC_BUFFER_SAMPLES = MUSIC_BUFFER_SAMPLES
+ChipSynth.MUSIC_BUFFER_COUNT = MUSIC_BUFFER_COUNT
+
+local PITCHES = {
+  0xF82C, 0xF89D, 0xF907, 0xF96B, 0xF9CA, 0xFA23,
+  0xFA77, 0xFAC7, 0xFB12, 0xFB58, 0xFB9B, 0xFBDA,
+}
+local DUTY = { [0] = 0.125, [1] = 0.25, [2] = 0.5, [3] = 0.75 }
+local WAVE_LEVEL = { [0] = 0, [1] = 1, [2] = 0.5, [3] = 0.25 }
+local NOISE_DIVISORS = {
+  [0] = 8, [1] = 16, [2] = 32, [3] = 48,
+  [4] = 64, [5] = 80, [6] = 96, [7] = 112,
+}
+
+local function snapTicks(ticks)
+  return math.floor((ticks * 735 + 256) / 512)
+end
+
+local cachedProgramFile
+local cachedBanks
+
+local function loadBanks(data)
+  local audio = data.audio
+  if cachedProgramFile == audio.programFile and cachedBanks then
+    return cachedBanks
+  end
+  local raw, readError = love.filesystem.read(audio.programFile)
+  if not raw then error("could not read sound programs: " .. tostring(readError)) end
+  local banks = {}
+  for index, bank in ipairs(audio.bankOrder) do
+    local first = (index - 1) * 0x4000 + 1
+    banks[bank] = raw:sub(first, first + 0x3FFF)
+  end
+  cachedProgramFile, cachedBanks = audio.programFile, banks
+  return banks
+end
+
+-- drop the single-slot bank cache; the worker keeps its own copy of this
+-- module's state, so ChipAudio.invalidate must reach it via a worker message
+function ChipSynth.invalidateBanks()
+  cachedProgramFile, cachedBanks = nil, nil
+end
+
+-- A def-local program (ChipAsm output) is mounted as pseudo-bank 0 next to
+-- the ROM banks, so the 0x4000-window byte reader and every call/loop
+-- target work unchanged.  The ROM's own cached bank table is never touched
+-- because bank 0 differs per def, and a blob that carries its own waves and
+-- drums renders even where programs.bin is unreadable.
+local function engineBanks(data, chip)
+  if not chip then return loadBanks(data) end
+  local banks = {}
+  local ok, romBanks = pcall(loadBanks, data)
+  if ok then
+    for bank, bytes in pairs(romBanks) do banks[bank] = bytes end
+  end
+  banks[0] = chip.blob
+  return banks
+end
+
+local function romByte(banks, bank, address)
+  local bytes = assert(banks[bank], "uncached audio bank " .. tostring(bank))
+  local value = bytes:byte(address - 0x4000 + 1)
+  if not value then
+    error(("audio read outside bank %02X:%04X"):format(bank, address))
+  end
+  return value
+end
+
+local function romWord(banks, bank, address)
+  return romByte(banks, bank, address)
+    + romByte(banks, bank, address + 1) * 0x100
+end
+
+local function headerChannels(banks, header)
+  local channels = {}
+  local address = header.address
+  local first = romByte(banks, header.bank, address)
+  local count = bit.rshift(bit.band(first, 0xF0), 6) + 1
+  for _ = 1, count do
+    local descriptor = romByte(banks, header.bank, address)
+    channels[#channels + 1] = {
+      number = bit.band(descriptor, 0x0F) + 1,
+      address = romWord(banks, header.bank, address + 1),
+    }
+    address = address + 3
+  end
+  return channels
+end
+
+local function fadeValue(nibble)
+  if bit.band(nibble, 8) ~= 0 then return -bit.band(nibble, 7) end
+  return nibble
+end
+
+local Channel = {}
+Channel.__index = Channel
+
+function Channel.new(engine, spec, options)
+  options = options or {}
+  local hardware = (spec.number - 1) % 4 + 1
+  local isSfxChannel = spec.number > 4
+  return setmetatable({
+    engine = engine,
+    bank = options.bank,
+    address = spec.address,
+    number = spec.number,
+    hardware = hardware,
+    wave = hardware == 3,
+    noise = hardware == 4,
+    sfx = isSfxChannel,
+    executeMusic = not isSfxChannel,
+    allowLoops = options.allowLoops ~= false,
+    frequencyOffset = options.frequencyOffset or 0,
+    frameTicks = options.frameTicks or FRAME_TICKS,
+    speed = 12,
+    volume = 12,
+    fade = 0,
+    duty = 0.5,
+    octave = 4,
+    waveInstrument = 0,
+    waveLevel = 1,
+    perfectPitch = false,
+    vibrato = nil,
+    pendingSlide = nil,
+    sweep = nil,
+    callStack = {},
+    loopCounts = {},
+    event = nil,
+    ended = false,
+    phase = 0,
+    noiseLfsr = 0x7FFF,
+    noiseClock = 0,
+    timeTicks = 0,
+  }, Channel)
+end
+
+function Channel:byte()
+  local value = romByte(self.engine.banks, self.bank, self.address)
+  self.address = self.address + 1
+  return value
+end
+
+function Channel:word()
+  local value = romWord(self.engine.banks, self.bank, self.address)
+  self.address = self.address + 2
+  return value
+end
+
+function Channel:frequency(note, octave)
+  local signed = PITCHES[note + 1] - 0x10000
+  local register = bit.band(
+    bit.arshift(signed, math.max(0, (octave or self.octave) - 1)), 0x7FF)
+  if self.perfectPitch then register = bit.band(register + 1, 0x7FF) end
+  return bit.band(register + self.frequencyOffset, 0x7FF)
+end
+
+function Channel:durationTicks(length)
+  local tempo = self.sfx and self.frameTicks or self.engine.tempo
+  local speed = self.sfx and (self.executeMusic and self.speed or 1)
+    or self.speed
+  return length * speed * tempo
+end
+
+function Channel:timedEvent(event, ticks)
+  local first = snapTicks(self.timeTicks)
+  self.timeTicks = self.timeTicks + ticks
+  event.duration = ticks / TICKS_PER_SECOND
+  event.samples = snapTicks(self.timeTicks) - first
+  event.sample = 0
+  event.elapsed = 0
+  return event
+end
+
+function Channel:pan()
+  local mask = bit.lshift(1, self.hardware - 1)
+  return bit.band(bit.rshift(self.engine.pan, 4), mask) ~= 0,
+    bit.band(self.engine.pan, mask) ~= 0
+end
+
+function Channel:tone(ticks, register, volume, fade)
+  if register >= 0x800 then
+    return self:timedEvent({ silence = true }, ticks)
+  end
+  local duration = ticks / TICKS_PER_SECOND
+  local panLeft, panRight = self:pan()
+  local slide
+  if self.pendingSlide then
+    slide = {
+      target = self.pendingSlide.target,
+      frames = math.max(1, duration * 60 - self.pendingSlide.length),
+    }
+    self.pendingSlide = nil
+  end
+  return self:timedEvent({
+    register = register,
+    volume = volume == nil and self.volume or volume,
+    fade = fade == nil and self.fade or fade,
+    duty = self.duty,
+    wave = self.wave,
+    waveInstrument = self.waveInstrument,
+    waveLevel = self.waveLevel,
+    vibrato = slide and nil or self.vibrato,
+    slide = slide,
+    sweep = self.sfx and self.hardware == 1 and self.sweep or nil,
+    panLeft = panLeft,
+    panRight = panRight,
+  }, ticks)
+end
+
+function Channel:noiseEvent(ticks, volume, fade, parameter)
+  local panLeft, panRight = self:pan()
+  return self:timedEvent({
+    noise = true,
+    volume = volume or self.volume,
+    fade = fade or 0,
+    noiseParameter = parameter,
+    panLeft = panLeft, panRight = panRight,
+  }, ticks)
+end
+
+function Channel:drumEvent(ticks, instrument)
+  local panLeft, panRight = self:pan()
+  return self:timedEvent({
+    noise = true,
+    drum = self.engine:noiseInstrument(instrument),
+    panLeft = panLeft,
+    panRight = panRight,
+  }, ticks)
+end
+
+function Channel:silenceEvent(ticks)
+  return self:timedEvent({ silence = true }, ticks)
+end
+
+function Channel:nextEvent()
+  if self.ended then return nil end
+  for _ = 1, 100000 do
+    local commandAddress = self.address
+    local command = self:byte()
+
+    if (self.executeMusic or not self.sfx) and command < 0xC0 then
+      local note = bit.rshift(command, 4)
+      local length = bit.band(command, 0x0F) + 1
+      if self.noise then
+        local instrument = note
+        if command >= 0xB0 then instrument = self:byte() end
+        return self:drumEvent(self:durationTicks(length), instrument)
+      end
+      return self:tone(self:durationTicks(length), self:frequency(note))
+    elseif command >= 0xC0 and command < 0xD0 then
+      local length = bit.band(command, 0x0F) + 1
+      return self:silenceEvent(self:durationTicks(length))
+    elseif command >= 0xD0 and command < 0xE0 then
+      self.speed = bit.band(command, 0x0F)
+      if not self.noise then
+        local packed = self:byte()
+        if self.wave then
+          self.waveLevel = WAVE_LEVEL[bit.band(bit.rshift(packed, 4), 3)]
+          self.waveInstrument = bit.band(packed, 0x0F)
+        else
+          self.volume = bit.rshift(packed, 4)
+          self.fade = fadeValue(bit.band(packed, 0x0F))
+        end
+      end
+    elseif command >= 0xE0 and command <= 0xE7 then
+      self.octave = 8 - bit.band(command, 7)
+    elseif command == 0xE8 then
+      self.perfectPitch = not self.perfectPitch
+    elseif command == 0xE9 then
+      -- Unused command.
+    elseif command == 0xEA then
+      local delay, packed = self:byte(), self:byte()
+      local depth = bit.rshift(packed, 4)
+      if depth == 0 then
+        self.vibrato = nil
+      else
+        self.vibrato = {
+          delay = delay,
+          above = bit.rshift(depth, 1) + bit.band(depth, 1),
+          below = bit.rshift(depth, 1),
+          rate = bit.band(packed, 0x0F),
+        }
+      end
+    elseif command == 0xEB then
+      local length, packed = self:byte(), self:byte()
+      local octave = 8 - bit.rshift(packed, 4)
+      self.pendingSlide = {
+        length = length,
+        target = self:frequency(bit.band(packed, 0x0F), octave),
+      }
+    elseif command == 0xEC then
+      self.duty = DUTY[bit.band(self:byte(), 3)] or 0.5
+    elseif command == 0xED then
+      self.engine.tempo = self:byte() * 0x100 + self:byte()
+    elseif command == 0xEE then
+      self.engine.pan = self:byte()
+    elseif command == 0xEF or command == 0xF0 then
+      self:byte()
+    elseif command == 0xF8 then
+      self.executeMusic = not self.executeMusic
+    elseif command == 0xFC then
+      local packed = self:byte()
+      self.duty = {
+        DUTY[bit.band(bit.rshift(packed, 6), 3)],
+        DUTY[bit.band(bit.rshift(packed, 4), 3)],
+        DUTY[bit.band(bit.rshift(packed, 2), 3)],
+        DUTY[bit.band(packed, 3)],
+      }
+    elseif command == 0xFD then
+      self.callStack[#self.callStack + 1] = self.address + 2
+      self.address = self:word()
+    elseif command == 0xFE then
+      local count, target = self:byte(), self:word()
+      if count == 0 then
+        if self.allowLoops then
+          self.address = target
+        else
+          self.ended = true
+          return nil
+        end
+      else
+        local remaining = self.loopCounts[commandAddress]
+        if remaining == nil then remaining = count end
+        remaining = remaining - 1
+        if remaining > 0 then
+          self.loopCounts[commandAddress] = remaining
+          self.address = target
+        else
+          self.loopCounts[commandAddress] = nil
+        end
+      end
+    elseif command == 0xFF then
+      local returnAddress = table.remove(self.callStack)
+      if returnAddress then
+        self.address = returnAddress
+      else
+        self.ended = true
+        return nil
+      end
+    elseif self.sfx and command >= 0x20 and command < 0x30 then
+      local length = bit.band(command, 0x0F) + 1
+      local packed = self:byte()
+      local volume = bit.rshift(packed, 4)
+      local fade = fadeValue(bit.band(packed, 0x0F))
+      if self.noise then
+        local parameter = self:byte()
+        return self:noiseEvent(
+          self:durationTicks(length), volume, fade, parameter)
+      end
+      local register = bit.band(self:word() + self.frequencyOffset, 0x7FF)
+      return self:tone(self:durationTicks(length), register, volume, fade)
+    elseif command == 0x10 then
+      local packed = self:byte()
+      self.sweep = {
+        pace = bit.band(bit.rshift(packed, 4), 7),
+        subtract = bit.band(packed, 8) ~= 0,
+        shift = bit.band(packed, 7),
+      }
+    else
+      self.ended = true
+      return nil
+    end
+  end
+  self.ended = true
+  return nil
+end
+
+local function envelopeVolume(volume, fade, elapsed)
+  if fade == 0 then return volume end
+  local steps = math.floor(elapsed / (math.abs(fade) / 64))
+  if fade > 0 then return math.max(0, volume - steps) end
+  return math.min(15, volume + steps)
+end
+
+function Channel:resetNoise()
+  self.noiseLfsr = 0x7FFF
+  self.noiseClock = 0
+end
+
+function Channel:clockNoise(width7)
+  local feedback = bit.bxor(
+    bit.band(self.noiseLfsr, 1),
+    bit.band(bit.rshift(self.noiseLfsr, 1), 1))
+  self.noiseLfsr = bit.bor(
+    bit.rshift(self.noiseLfsr, 1),
+    bit.lshift(feedback, 14))
+  if width7 then
+    self.noiseLfsr = bit.bor(
+      bit.band(self.noiseLfsr, bit.bnot(0x40)),
+      bit.lshift(feedback, 6))
+  end
+end
+
+function Channel:sampleNoise(parameter)
+  parameter = parameter or 0
+  local divisor = NOISE_DIVISORS[bit.band(parameter, 7)]
+  local shift = bit.rshift(parameter, 4)
+  local output = bit.band(self.noiseLfsr, 1) == 0 and 1 or -1
+  if shift >= 14 then return output end
+  local cycles = GB_CLOCK / divisor / (2 ^ shift) / SAMPLE_RATE
+  local width7 = bit.band(parameter, 8) ~= 0
+  local remaining = cycles
+  local area = 0
+
+  while remaining > 0 do
+    local untilClock = 1 - self.noiseClock
+    local span = math.min(remaining, untilClock)
+    output = bit.band(self.noiseLfsr, 1) == 0 and 1 or -1
+    area = area + output * span
+    self.noiseClock = self.noiseClock + span
+    remaining = remaining - span
+    if self.noiseClock >= 1 - 1e-12 then
+      self.noiseClock = 0
+      self:clockNoise(width7)
+    end
+  end
+
+  return area / cycles
+end
+
+local function sweepCalculation(register, sweep)
+  local delta = math.floor(register / (2 ^ sweep.shift))
+  if sweep.subtract then return register - delta end
+  return register + delta
+end
+
+local function sweptRegister(register, sweep, elapsed)
+  if not sweep or sweep.shift == 0 then return register end
+  local nextRegister = sweepCalculation(register, sweep)
+  if nextRegister > 0x7FF or nextRegister < 0 then return nil end
+  if sweep.pace == 0 then return register end
+
+  local iterations = math.floor(elapsed * 128 / sweep.pace)
+  for _ = 1, iterations do
+    register = nextRegister
+    nextRegister = sweepCalculation(register, sweep)
+    if nextRegister > 0x7FF or nextRegister < 0 then return nil end
+  end
+  return register
+end
+
+function Channel:sampleDrum(event, sampleIndex)
+  local index = event.drumSegmentIndex or 1
+  local segment = event.drum[index]
+  while segment and sampleIndex >= segment.endSample do
+    index = index + 1
+    segment = event.drum[index]
+  end
+  if not segment or sampleIndex < segment.startSample then return 0 end
+  if event.drumSegmentIndex ~= index then
+    event.drumSegmentIndex = index
+    self:resetNoise()
+  end
+  local elapsed = (sampleIndex - segment.startSample) / SAMPLE_RATE
+  local volume = envelopeVolume(segment.volume, segment.fade, elapsed)
+  return self:sampleNoise(segment.parameter) * volume / 15 * 0.35
+end
+
+function Channel:sample()
+  while not self.ended
+      and (not self.event or self.event.sample >= self.event.samples) do
+    self.event = self:nextEvent()
+    self.phase = 0
+    self:resetNoise()
+  end
+  local event = self.event
+  if not event then return 0 end
+  local sampleIndex = event.sample
+  event.elapsed = sampleIndex / SAMPLE_RATE
+  event.sample = sampleIndex + 1
+  if event.silence then return 0 end
+
+  if event.drum then return self:sampleDrum(event, sampleIndex) end
+  local volume = envelopeVolume(
+    event.volume or 0, event.fade or 0, event.elapsed)
+  if event.noise then
+    return self:sampleNoise(event.noiseParameter) * volume / 15 * 0.35
+  end
+
+  local register = event.register
+  local frame = math.floor(event.elapsed * 60)
+  if event.sweep then
+    register = sweptRegister(register, event.sweep, event.elapsed)
+    if not register then return 0 end
+  elseif event.slide then
+    local amount = math.min(1, frame / event.slide.frames)
+    register = register + (event.slide.target - register) * amount
+  elseif event.vibrato and frame >= event.vibrato.delay then
+    local vibrato = event.vibrato
+    local toggles = math.floor(
+      (frame - vibrato.delay + 1) / (vibrato.rate + 1))
+    if toggles > 0 then
+      local low = bit.band(register, 0xFF)
+      local high = bit.band(register, 0x700)
+      if bit.band(toggles, 1) ~= 0 then
+        register = high + math.min(0xFF, low + vibrato.above)
+      else
+        register = high + math.max(0, low - vibrato.below)
+      end
+    end
+  end
+  local frequency = 131072 / (2048 - math.min(register, 2047))
+  if event.wave then frequency = frequency * 0.5 end
+  local phase = self.phase
+  self.phase = (phase + frequency / SAMPLE_RATE) % 1
+  if event.wave then
+    local wave = self.engine.waves[
+      math.min(event.waveInstrument + 1, #self.engine.waves)]
+    -- a def-local program may omit its wave table entirely
+    if not wave then return 0 end
+    local index = math.min(32, math.floor(phase * 32) + 1)
+    return wave[index] * event.waveLevel * 0.55
+  end
+  local duty = event.duty
+  if type(duty) == "table" then
+    duty = duty[frame % 4 + 1]
+  end
+  return (phase < duty and 1 or -1) * volume / 15 * 0.5
+end
+
+local Engine = {}
+Engine.__index = Engine
+
+function Engine:noiseInstrument(number)
+  -- a def-local drum wins over the ROM engine's table for that id
+  local custom = self.customDrums and self.customDrums[number]
+  if custom then return custom end
+  local cached = self.noiseInstruments[number]
+  if cached then return cached end
+
+  local header = self.noiseHeaders[tostring(number)]
+  local segments = {}
+  if header then
+    local spec = headerChannels(self.banks, header)[1]
+    local address = spec and spec.address
+    local ticks = 0
+    for _ = 1, 64 do
+      local command = romByte(self.banks, header.bank, address)
+      address = address + 1
+      if command == 0xFF then break end
+      if command < 0x20 or command >= 0x30 then
+        error(("unsupported drum command %02X at %02X:%04X")
+          :format(command, header.bank, address - 1))
+      end
+      local packed = romByte(self.banks, header.bank, address)
+      local parameter = romByte(self.banks, header.bank, address + 1)
+      address = address + 2
+      local duration = (bit.band(command, 0x0F) + 1) * FRAME_TICKS
+      segments[#segments + 1] = {
+        startSample = snapTicks(ticks),
+        endSample = snapTicks(ticks + duration),
+        volume = bit.rshift(packed, 4),
+        fade = fadeValue(bit.band(packed, 0x0F)),
+        parameter = parameter,
+      }
+      ticks = ticks + duration
+    end
+  end
+
+  self.noiseInstruments[number] = segments
+  return segments
+end
+
+local function readWaves(banks, audio, engineNumber)
+  local spec = audio.waveBanks[tostring(engineNumber)]
+  local waves = {}
+  for wave = 0, 4 do
+    local values = {}
+    for byteIndex = 0, 15 do
+      local packed = romByte(
+        banks, spec.bank, spec.address + wave * 16 + byteIndex)
+      values[#values + 1] = (bit.rshift(packed, 4) - 7.5) / 7.5
+      values[#values + 1] = (bit.band(packed, 0x0F) - 7.5) / 7.5
+    end
+    waves[#waves + 1] = values
+  end
+  local values = {}
+  for byteIndex = 0, 15 do
+    local packed = romByte(
+      banks, spec.bank, spec.address + 5 * 16 + byteIndex)
+    values[#values + 1] = (bit.rshift(packed, 4) - 7.5) / 7.5
+    values[#values + 1] = (bit.band(packed, 0x0F) - 7.5) / 7.5
+  end
+  for _ = 1, 4 do waves[#waves + 1] = values end
+  return waves
+end
+
+-- def-local waves are authored either as raw 0-15 nibbles (the ROM's own
+-- units) or as the -1..1 samples readWaves produces; the synth wants the
+-- latter
+local function normalizeWaves(source)
+  local waves = {}
+  for index, values in ipairs(source) do
+    local nibbles = false
+    for _, value in ipairs(values) do
+      if value > 1 or value < -1 then nibbles = true break end
+    end
+    local wave = {}
+    for position, value in ipairs(values) do
+      wave[position] = nibbles and (value - 7.5) / 7.5 or value
+    end
+    waves[index] = wave
+  end
+  return waves
+end
+
+function Engine.new(data, header, options)
+  options = options or {}
+  local audio = data.audio or {}
+  -- shape dispatch: a def-local chip program supplies its own channels and
+  -- may supply its own waves/drums, falling back to a ROM engine's tables
+  local chip = header.chip
+  local banks = engineBanks(data, chip)
+  local engineNumber = chip and (chip.engine or 1) or header.engine
+  local waves
+  if chip and chip.waves then
+    waves = normalizeWaves(chip.waves)
+  elseif chip then
+    local ok, romWaves = pcall(readWaves, banks, audio, engineNumber)
+    waves = ok and romWaves or {}
+  else
+    waves = readWaves(banks, audio, engineNumber)
+  end
+  local engine = setmetatable({
+    banks = banks,
+    tempo = 0x100,
+    pan = 0xFF,
+    waves = waves,
+    noiseHeaders = audio.noiseHeaders
+      and audio.noiseHeaders[tostring(engineNumber)] or {},
+    customDrums = chip and chip.drums or nil,
+    noiseInstruments = {},
+    channels = {},
+  }, Engine)
+  for _, spec in ipairs(chip and chip.channels
+      or headerChannels(banks, header)) do
+    local frameTicks = options.frameTicks
+    local hardware = (spec.number - 1) % 4 + 1
+    if hardware == 4 then
+      frameTicks = FRAME_TICKS
+    elseif options.cryLength then
+      frameTicks = 0x80 + options.cryLength
+    end
+    engine.channels[#engine.channels + 1] = Channel.new(engine, spec, {
+      bank = chip and 0 or header.bank,
+      sfx = options.sfx,
+      allowLoops = options.allowLoops,
+      frequencyOffset = options.frequencyOffset,
+      frameTicks = frameTicks,
+    })
+  end
+  return engine
+end
+
+function Engine:finished()
+  for _, channel in ipairs(self.channels) do
+    if not channel.ended or channel.event then return false end
+  end
+  return true
+end
+
+function Engine:sample()
+  local value = 0
+  for _, channel in ipairs(self.channels) do value = value + channel:sample() end
+  return math.max(-1, math.min(1, value * 0.5))
+end
+
+function Engine:sampleStereo()
+  local left, right = 0, 0
+  for _, channel in ipairs(self.channels) do
+    local value = channel:sample()
+    local event = channel.event
+    if not event or event.panLeft ~= false then left = left + value end
+    if not event or event.panRight ~= false then right = right + value end
+  end
+  return math.max(-1, math.min(1, left * 0.5)),
+    math.max(-1, math.min(1, right * 0.5))
+end
+
+function Engine:sampleChannel(number)
+  local selected = 0
+  for _, channel in ipairs(self.channels) do
+    local value = channel:sample()
+    if channel.number == number then selected = value end
+  end
+  return math.max(-1, math.min(1, selected * 0.5))
+end
+
+-- render `samples` frames into a fresh SoundData (mono or stereo).  love.sound
+-- is available on worker threads, so this is the hand-off unit the worker
+-- produces and the main thread queues.
+local function soundData(engine, samples, channels)
+  local result = love.sound.newSoundData(samples, SAMPLE_RATE, 16, channels)
+  for index = 0, samples - 1 do
+    if channels == 2 then
+      local left, right = engine:sampleStereo()
+      result:setSample(index, 1, left)
+      result:setSample(index, 2, right)
+    else
+      result:setSample(index, engine:sample())
+    end
+  end
+  return result
+end
+
+-- Render a one-shot effect (SFX/cry) to a mono SoundData, or nil when it is
+-- too short to be audible.  The caller wraps it in a static love.audio.Source
+-- (a playback concern, hence not done here).
+local function renderEffectData(data, header, options)
+  if not header then return nil end
+  options = options or {}
+  options.sfx = true
+  options.allowLoops = false
+  local engine = Engine.new(data, header, options)
+  local maximum = SAMPLE_RATE * 5
+  local values = {}
+  local count = 0
+  while count < maximum and not engine:finished() do
+    count = count + 1
+    values[count] = engine:sample()
+  end
+  if count < math.floor(SAMPLE_RATE / 100) then return nil end
+  local result = love.sound.newSoundData(count, SAMPLE_RATE, 16, 1)
+  for index = 1, count do result:setSample(index - 1, values[index]) end
+  return result
+end
+
+ChipSynth.newEngine = Engine.new
+ChipSynth.soundData = soundData
+ChipSynth.renderEffectData = renderEffectData
+
+return ChipSynth

src/core/Data.lua

@@ -41,7 +41,11 @@ local CONSTANT_DEFAULTS = {
 -- field.boot is the total-conversion override point for the new game; the
 -- values match what SaveData.newGame and the Oak speech used to inline.
 local BOOT_DEFAULTS = {
-  startMap = "PALLET_TOWN", startX = 5, startY = 6, startFacing = "down",
+  -- special_warps.asm NewGameWarp: REDS_HOUSE_2F, 3, 6 -- the bedroom, not
+  -- the tile outside the house. lastHeal is deliberately absent: SaveData
+  -- derives the vanilla blackout point, and seeding it here would leak into
+  -- total conversions that patch the spawn without naming a heal point.
+  startMap = "REDS_HOUSE_2F", startX = 3, startY = 6, startFacing = "down",
   playerName = "RED", rivalName = "BLUE",
   startMoney = 3000,
   screens = { splash = "IntroMovie", title = "TitleState", newGame = "OakSpeech" },
@@ -93,6 +97,30 @@ function Data:seedDefaults()
   -- the overworld's Kanto literals, same fill-if-absent contract; required
   -- here rather than at the top so core keeps out of src/world at load time
   require("src.world.FieldDefaults").seed(self)
+  -- Cinnabar's quiz trainers are text_asm (no def_trainers), so the
+  -- extractor never writes headers for them.  Seed the EVENT_BEAT_* /
+  -- after-battle rows so Blaine's SetEventRange deactivation and talk
+  -- after-text work like the other gyms (scripts/CinnabarGym.asm).
+  self:seedCinnabarGymTrainerHeaders()
+end
+
+function Data:seedCinnabarGymTrainerHeaders()
+  local headers = self.trainer_headers
+  if not headers or headers.CinnabarGym then return end
+  local gym = {}
+  for i = 0, 6 do
+    local n = i + 1
+    -- object indices 2..8 are SUPER_NERD1..7; range 0 -- they only
+    -- engage via talk / wrong quiz answer, never sight lines
+    gym[i + 2] = {
+      event = "EVENT_BEAT_CINNABAR_GYM_TRAINER_" .. i,
+      range = 0,
+      battle = "_CinnabarGymSuperNerd" .. n .. "BattleText",
+      won = "_CinnabarGymSuperNerd" .. n .. "EndBattleText",
+      after = "_CinnabarGymSuperNerd" .. n .. "AfterBattleText",
+    }
+  end
+  headers.CinnabarGym = gym
 end
 
 -- POKEPORT_DATA_DIR points a test runner at another dataset root (the

src/core/DiscordPresence.lua

@@ -0,0 +1,658 @@
+-- Discord Rich Presence via the local Discord IPC pipe.  Shows the player's
+-- current map (and battle status) on their Discord profile.  Desktop only;
+-- no-ops on mobile, headless runs, or when Discord is not running.
+--
+-- Application ID is the only credential needed for presence.  The Discord
+-- Interactions public key is unused here (that is for verifying bot HTTP
+-- payloads, not Rich Presence).
+
+local Json = require("src.link.Json")
+local Logger = require("src.core.Logger")
+local Runtime = require("src.mods.Runtime")
+
+local DiscordPresence = {
+  APP_ID = "1529183141267374262",
+}
+
+local OP_HANDSHAKE, OP_FRAME, OP_CLOSE = 0, 1, 2
+
+local MIN_UPDATE_INTERVAL = 2.0
+local RECONNECT_INTERVAL = 30.0
+
+local state = {
+  enabled = false,
+  connected = false,
+  socket = nil,       -- Windows: file handle; Unix: ffi sockfd
+  isWindows = false,
+  ffi = nil,
+  ffiReady = false,
+  startedAt = 0,
+  dirty = false,
+  lastSentKey = nil,
+  lastSendAt = -1e9,
+  nextReconnectAt = 0,
+  location = nil,     -- display name
+  mapId = nil,
+  activity = "menu",  -- menu | exploring | battle
+  battleLabel = nil,
+  unsubs = {},
+  pid = nil,
+  loggedAbsent = false, -- one quiet note when Discord isn't running
+}
+
+local function disabledByEnv()
+  return os.getenv("POKEPORT_NO_DISCORD") == "1"
+      or os.getenv("POKEPORT_AUTOPILOT") ~= nil
+      or os.getenv("POKEPORT_DRIVER") ~= nil
+end
+
+local function isDesktop()
+  if not love or not love.system or not love.system.getOS then return false end
+  local osName = love.system.getOS()
+  return osName == "OS X" or osName == "Windows" or osName == "Linux"
+end
+
+local function packU32(n)
+  n = math.floor(n) % 0x100000000
+  local b1 = n % 256; n = math.floor(n / 256)
+  local b2 = n % 256; n = math.floor(n / 256)
+  local b3 = n % 256; n = math.floor(n / 256)
+  local b4 = n % 256
+  return string.char(b1, b2, b3, b4)
+end
+
+local function unpackU32(s)
+  local b1, b2, b3, b4 = s:byte(1, 4)
+  return b1 + b2 * 256 + b3 * 65536 + b4 * 16777216
+end
+
+local function nonce()
+  return string.format("%08x-%04x-4%03x-%04x-%04x%08x",
+    math.random(0, 0xffffffff),
+    math.random(0, 0xffff),
+    math.random(0, 0xfff),
+    math.random(0, 0x3fff) + 0x8000,
+    math.random(0, 0xffff),
+    math.random(0, 0xffffffff))
+end
+
+local function resolvePid()
+  if state.pid then return state.pid end
+  local ffi = state.ffi
+  if ffi then
+    if state.isWindows then
+      pcall(ffi.cdef, "unsigned long GetCurrentProcessId(void);")
+      local ok, p = pcall(function() return ffi.C.GetCurrentProcessId() end)
+      if ok and p and tonumber(p) and tonumber(p) > 0 then
+        state.pid = tonumber(p)
+        return state.pid
+      end
+    else
+      pcall(ffi.cdef, "int getpid(void);")
+      local ok, p = pcall(function() return ffi.C.getpid() end)
+      if ok and p and tonumber(p) and tonumber(p) > 0 then
+        state.pid = tonumber(p)
+        return state.pid
+      end
+    end
+  end
+  state.pid = 1000 + math.random(1, 8999)
+  return state.pid
+end
+
+local function ensureFfi()
+  if state.ffiReady then return state.ffi end
+  if state.ffi == false then return nil end
+  local ok, ffi = pcall(require, "ffi")
+  if not ok or not ffi then
+    state.ffi = false
+    return nil
+  end
+  state.ffi = ffi
+  if state.isWindows then
+    state.ffiReady = true
+    return ffi
+  end
+  -- Darwin sockaddr_un has sun_len + uint8_t family; Linux uses u16 family.
+  local osName = love.system.getOS()
+  local cdef
+  if osName == "OS X" then
+    cdef = [[
+      typedef unsigned int socklen_t;
+      typedef int ssize_t;
+      struct sockaddr_un {
+        uint8_t sun_len;
+        uint8_t sun_family;
+        char sun_path[104];
+      };
+      struct timeval { long tv_sec; int tv_usec; };
+      int socket(int domain, int type, int protocol);
+      int connect(int sockfd, const void *addr, socklen_t addrlen);
+      int setsockopt(int sockfd, int level, int optname, const void *optval, socklen_t optlen);
+      ssize_t send(int sockfd, const void *buf, size_t len, int flags);
+      ssize_t recv(int sockfd, void *buf, size_t len, int flags);
+      int close(int fd);
+    ]]
+  else
+    cdef = [[
+      typedef unsigned int socklen_t;
+      typedef int ssize_t;
+      struct sockaddr_un {
+        unsigned short sun_family;
+        char sun_path[108];
+      };
+      struct timeval { long tv_sec; long tv_usec; };
+      int socket(int domain, int type, int protocol);
+      int connect(int sockfd, const void *addr, socklen_t addrlen);
+      int setsockopt(int sockfd, int level, int optname, const void *optval, socklen_t optlen);
+      ssize_t send(int sockfd, const void *buf, size_t len, int flags);
+      ssize_t recv(int sockfd, void *buf, size_t len, int flags);
+      int close(int fd);
+    ]]
+  end
+  -- cdef may already be registered from a prior boot; either way we need
+  -- sockaddr_un usable before claiming readiness
+  pcall(ffi.cdef, cdef)
+  local ready = pcall(function() return ffi.new("struct sockaddr_un") end)
+  if not ready then
+    state.ffi = false
+    state.ffiReady = false
+    return nil
+  end
+  state.ffiReady = true
+  return ffi
+end
+
+local function closeSocket()
+  local sock = state.socket
+  state.socket = nil
+  state.connected = false
+  if not sock then return end
+  if state.isWindows then
+    pcall(function() sock:close() end)
+  elseif state.ffi then
+    pcall(state.ffi.C.close, sock)
+  end
+end
+
+local function writeRaw(bytes)
+  if not state.socket then return false end
+  if state.isWindows then
+    local ok = pcall(function()
+      state.socket:seek("end")
+      local _, writeErr = state.socket:write(bytes)
+      state.socket:flush()
+      if writeErr then error(writeErr) end
+    end)
+    return ok
+  end
+  local ffi = state.ffi
+  if not ffi then return false end
+  local ok, sent = pcall(ffi.C.send, state.socket, bytes, #bytes, 0)
+  return ok and sent == #bytes
+end
+
+local function sendFrame(opcode, payload)
+  local body = payload or ""
+  local ok, frame = pcall(function()
+    return packU32(opcode) .. packU32(#body) .. body
+  end)
+  if not ok or not frame then return false end
+  return writeRaw(frame)
+end
+
+local function readExact(n)
+  if not state.socket or n <= 0 then return nil end
+  if state.isWindows then
+    local ok, data = pcall(function() return state.socket:read(n) end)
+    if not ok or not data or #data < n then return nil end
+    return data
+  end
+  local ffi = state.ffi
+  if not ffi then return nil end
+  local ok, data = pcall(function()
+    local buf = ffi.new("char[?]", n)
+    local got = 0
+    while got < n do
+      local nread = ffi.C.recv(state.socket, buf + got, n - got, 0)
+      if not nread or nread <= 0 then return nil end
+      got = got + tonumber(nread)
+    end
+    return ffi.string(buf, n)
+  end)
+  if not ok then return nil end
+  return data
+end
+
+local function receiveFrame()
+  local header = readExact(8)
+  if not header then return nil end
+  local ok, opcode, length = pcall(function()
+    return unpackU32(header:sub(1, 4)), unpackU32(header:sub(5, 8))
+  end)
+  if not ok or not opcode or not length or length < 0 or length > 65536 then
+    return nil
+  end
+  local data = length > 0 and readExact(length) or ""
+  if data == nil then return nil end
+  return opcode, data
+end
+
+local function unixSocketPaths()
+  local paths = {}
+  local envs = { "XDG_RUNTIME_DIR", "TMPDIR", "TMP", "TEMP" }
+  local bases = {}
+  for _, key in ipairs(envs) do
+    local v = os.getenv(key)
+    if v and v ~= "" then
+      if v:sub(-1) == "/" then v = v:sub(1, -2) end
+      bases[#bases + 1] = v
+    end
+  end
+  bases[#bases + 1] = "/tmp"
+  local suffixes = {
+    "",
+    "/app/com.discordapp.Discord",
+    "/app/com.discordapp.DiscordCanary",
+    "/app/com.discordapp.DiscordPTB",
+    "/snap.discord",
+    "/snap.discord-canary",
+  }
+  local seen = {}
+  for i = 0, 9 do
+    local name = "discord-ipc-" .. i
+    for _, base in ipairs(bases) do
+      for _, suffix in ipairs(suffixes) do
+        local path = base .. suffix .. "/" .. name
+        if not seen[path] then
+          seen[path] = true
+          paths[#paths + 1] = path
+        end
+      end
+    end
+  end
+  return paths
+end
+
+local function setSocketTimeout(fd, seconds)
+  local ffi = state.ffi
+  if not ffi or not fd then return end
+  pcall(function()
+    local tv = ffi.new("struct timeval")
+    tv.tv_sec = seconds
+    tv.tv_usec = 0
+    -- SOL_SOCKET / SO_RCVTIMEO / SO_SNDTIMEO differ by OS
+    local sol, rcv, snd
+    if love.system.getOS() == "OS X" then
+      sol, rcv, snd = 0xffff, 0x1006, 0x1005
+    else
+      sol, rcv, snd = 1, 20, 21
+    end
+    ffi.C.setsockopt(fd, sol, rcv, tv, ffi.sizeof(tv))
+    ffi.C.setsockopt(fd, sol, snd, tv, ffi.sizeof(tv))
+  end)
+end
+
+local function connectUnix()
+  local ffi = ensureFfi()
+  if not ffi then return false end
+  local darwin = love.system.getOS() == "OS X"
+  local maxPath = darwin and 103 or 107
+  -- AF_UNIX=1, SOCK_STREAM=1 on Linux/macOS
+  local pathsOk, paths = pcall(unixSocketPaths)
+  if not pathsOk or not paths then return false end
+  for _, path in ipairs(paths) do
+    if #path <= maxPath then
+      local ok, connected = pcall(function()
+        local fd = ffi.C.socket(1, 1, 0)
+        if not fd or fd < 0 then return false end
+        local addr = ffi.new("struct sockaddr_un")
+        addr.sun_family = 1
+        if darwin then
+          -- SUN_LEN: sizeof(sun_len+sun_family) + path + NUL
+          addr.sun_len = 2 + #path + 1
+        end
+        ffi.copy(addr.sun_path, path)
+        local rc = ffi.C.connect(fd, ffi.cast("void*", addr), ffi.sizeof(addr))
+        if rc == 0 then
+          setSocketTimeout(fd, 1) -- handshake must not freeze the game
+          state.socket = fd
+          return true
+        end
+        ffi.C.close(fd)
+        return false
+      end)
+      if ok and connected then return true end
+    end
+  end
+  return false
+end
+
+local function connectWindows()
+  for i = 0, 9 do
+    local path = "\\\\.\\pipe\\discord-ipc-" .. i
+    local ok, file = pcall(io.open, path, "r+")
+    if ok and file then
+      state.socket = file
+      return true
+    end
+  end
+  return false
+end
+
+local function handshake()
+  local ok, payload = pcall(Json.encode, { v = 1, client_id = DiscordPresence.APP_ID })
+  if not ok or not payload then return false end
+  if not sendFrame(OP_HANDSHAKE, payload) then return false end
+  -- Discord echoes READY as a FRAME.  A timeout/missing client is a soft miss.
+  local opcode = receiveFrame()
+  if opcode == OP_FRAME then return true end
+  -- Windows named pipes have no easy read timeout: if the write succeeded
+  -- and Discord is present, proceed optimistically so boot never blocks.
+  if state.isWindows then return true end
+  return false
+end
+
+local function noteAbsent()
+  if state.loggedAbsent then return end
+  state.loggedAbsent = true
+  -- info, not warn: missing Discord is normal for many players
+  Logger.info("discord: rich presence unavailable (Discord not running)")
+end
+
+local function connect()
+  local ok, result = pcall(function()
+    closeSocket()
+    local linked
+    if state.isWindows then
+      linked = connectWindows()
+    else
+      linked = connectUnix()
+    end
+    if not linked then return false end
+    if not handshake() then
+      closeSocket()
+      return false
+    end
+    state.connected = true
+    state.dirty = true
+    state.lastSentKey = nil
+    state.loggedAbsent = false
+    Logger.info("discord: rich presence connected")
+    return true
+  end)
+  if not ok then
+    closeSocket()
+    return false
+  end
+  return result and true or false
+end
+
+local function locationName(game, mapId)
+  if not mapId then return nil end
+  local field = game and game.data and game.data.field
+  local townMap = field and field.townMap
+  local locations = townMap and (townMap.locations or townMap)
+  local entry = type(locations) == "table" and locations[mapId]
+  if type(entry) == "table" then
+    local name = entry.name or entry.label
+    if type(name) == "string" and name ~= "" then return name end
+  end
+  local def = game and game.data and game.data.maps and game.data.maps[mapId]
+  if def and type(def.label) == "string" and def.label ~= "" then
+    -- PalletTown -> Pallet Town
+    return def.label:gsub("(%l)(%u)", "%1 %2")
+  end
+  return tostring(mapId):gsub("_", " ")
+end
+
+local function speciesName(game, species)
+  if not species or not game or not game.data or not game.data.pokemon then
+    return nil
+  end
+  local def = game.data.pokemon[species]
+  return def and def.name or tostring(species):gsub("_", " ")
+end
+
+local function buildActivity()
+  local details, activityState
+  if state.activity == "battle" then
+    details = state.battleLabel or "In battle"
+    activityState = state.location and (state.location) or "Kanto"
+  elseif state.activity == "exploring" and state.location then
+    details = state.location
+    activityState = "Exploring the overworld"
+  else
+    details = state.location or "Kanto"
+    activityState = "At the title screen"
+  end
+
+  return {
+    details = details,
+    state = activityState,
+    timestamps = { start = state.startedAt },
+    assets = {
+      large_image = "logo",
+      large_text = "Pokemon Gen1Recomp",
+    },
+  }
+end
+
+local function activityKey(activity)
+  return (activity.details or "") .. "|" .. (activity.state or "")
+end
+
+local function flush(force)
+  if not state.enabled or not state.connected then return end
+  local ok = pcall(function()
+    local now = love.timer.getTime()
+    if not force and (now - state.lastSendAt) < MIN_UPDATE_INTERVAL then
+      state.dirty = true
+      return
+    end
+    local activity = buildActivity()
+    local key = activityKey(activity)
+    if not force and key == state.lastSentKey then
+      state.dirty = false
+      return
+    end
+    local payload = Json.encode({
+      cmd = "SET_ACTIVITY",
+      args = {
+        pid = resolvePid(),
+        activity = activity,
+      },
+      nonce = nonce(),
+    })
+    if not sendFrame(OP_FRAME, payload) then
+      closeSocket()
+      state.nextReconnectAt = now + RECONNECT_INTERVAL
+      return
+    end
+    state.lastSentKey = key
+    state.lastSendAt = now
+    state.dirty = false
+  end)
+  if not ok then
+    closeSocket()
+    local now = love and love.timer and love.timer.getTime and love.timer.getTime() or 0
+    state.nextReconnectAt = now + RECONNECT_INTERVAL
+  end
+end
+
+local function setPresence(fields)
+  -- event listeners must never throw into the overworld/battle path
+  pcall(function()
+    if fields.location ~= nil then state.location = fields.location end
+    if fields.mapId ~= nil then state.mapId = fields.mapId end
+    if fields.activity ~= nil then state.activity = fields.activity end
+    if fields.clearBattle then
+      state.battleLabel = nil
+    elseif fields.battleLabel ~= nil then
+      state.battleLabel = fields.battleLabel
+    end
+    state.dirty = true
+    flush(false)
+  end)
+end
+
+local function subscribe(game)
+  local events = Runtime.events
+  if not events or not events.on then return end
+
+  local function track(name, fn)
+    state.unsubs[#state.unsubs + 1] = events:on(name, fn, 0, "discord")
+  end
+
+  track("map.entered", function(ev)
+    local mapId = ev and ev.mapId
+    setPresence({
+      mapId = mapId,
+      location = locationName(game, mapId),
+      activity = "exploring",
+      clearBattle = true,
+    })
+  end)
+
+  track("battle.started", function(ev)
+    local battle = ev and ev.battle
+    local label = "In battle"
+    if ev and ev.kind == "wild" then
+      local name = speciesName(game, ev.species)
+      if name then
+        label = "Battling wild " .. name
+        if ev.level then label = label .. " Lv" .. tostring(ev.level) end
+      else
+        label = "Wild battle"
+      end
+    elseif ev and ev.kind == "trainer" then
+      local tname = battle and battle.trainer and battle.trainer.name
+      label = tname and ("Battling " .. tname) or "Trainer battle"
+    elseif ev and ev.kind == "link" then
+      label = "Link battle"
+    end
+    local mapId = state.mapId
+      or (game.save and game.save.player and game.save.player.map)
+    setPresence({
+      activity = "battle",
+      battleLabel = label,
+      location = locationName(game, mapId) or state.location,
+      mapId = mapId,
+    })
+  end)
+
+  track("battle.ended", function()
+    local mapId = state.mapId
+      or (game.save and game.save.player and game.save.player.map)
+    setPresence({
+      activity = mapId and "exploring" or "menu",
+      clearBattle = true,
+      location = locationName(game, mapId) or state.location,
+      mapId = mapId,
+    })
+  end)
+
+  track("screen.pushed", function(ev)
+    local s = ev and ev.state
+    local id = s and s.screenId
+    if not id and s and s.onNewGame then id = "TitleState" end
+    if id == "TitleState" or id == "IntroMovie" then
+      state.mapId = nil
+      setPresence({
+        activity = "menu",
+        location = id == "IntroMovie" and "Watching the intro" or "Title screen",
+        clearBattle = true,
+      })
+    end
+  end)
+end
+
+function DiscordPresence.init(game)
+  local ok, err = pcall(function()
+    DiscordPresence.shutdown()
+    if disabledByEnv() or not isDesktop() then return end
+
+    state.enabled = true
+    state.isWindows = love.system.getOS() == "Windows"
+    state.startedAt = os.time()
+    state.activity = "menu"
+    state.location = "Title screen"
+    state.mapId = nil
+    state.battleLabel = nil
+    state.dirty = true
+    state.nextReconnectAt = 0
+    state.loggedAbsent = false
+
+    if not state.isWindows and not ensureFfi() then
+      -- no FFI / broken cdef: stay disabled, never throw
+      state.enabled = false
+      return
+    end
+
+    subscribe(game)
+    if connect() then
+      flush(true)
+    else
+      noteAbsent()
+      local now = (love.timer and love.timer.getTime and love.timer.getTime()) or 0
+      state.nextReconnectAt = now + RECONNECT_INTERVAL
+    end
+  end)
+  if not ok then
+    closeSocket()
+    state.enabled = false
+    -- still soft: a broken presence stack must not abort boot
+    Logger.info("discord: rich presence disabled (%s)", tostring(err))
+  end
+end
+
+function DiscordPresence.update(_dt)
+  if not state.enabled then return end
+  pcall(function()
+    local now = love.timer.getTime()
+    if not state.connected then
+      if now >= state.nextReconnectAt then
+        state.nextReconnectAt = now + RECONNECT_INTERVAL
+        if connect() then
+          flush(true)
+        else
+          noteAbsent()
+        end
+      end
+      return
+    end
+    if state.dirty then flush(false) end
+  end)
+end
+
+function DiscordPresence.shutdown()
+  pcall(function()
+    for _, unsub in ipairs(state.unsubs) do
+      pcall(unsub)
+    end
+    state.unsubs = {}
+    if state.connected then
+      pcall(function()
+        -- omit activity to clear the presence
+        sendFrame(OP_FRAME, Json.encode({
+          cmd = "SET_ACTIVITY",
+          args = { pid = resolvePid() },
+          nonce = nonce(),
+        }))
+        sendFrame(OP_CLOSE, "{}")
+      end)
+    end
+    closeSocket()
+  end)
+  state.enabled = false
+  state.dirty = false
+  state.lastSentKey = nil
+  state.connected = false
+  state.socket = nil
+end
+
+-- test / debug helpers
+DiscordPresence._state = state
+DiscordPresence.locationName = locationName
+
+return DiscordPresence

src/core/FixedStep.lua

@@ -12,8 +12,15 @@ function FixedStep:init(callback)
   self.callback = callback
 end
 
+-- The anti-spiral clamp doubles as a steps-per-frame ceiling (0.25s = 15
+-- steps), which silently throttled the high fast-forward levels: at 100X
+-- a 60fps frame wants ~100 steps. Game:update raises this to fit the
+-- current speed target; a stall still cannot snowball past one frame's
+-- intended budget.
+FixedStep.maxAccum = MAX_ACCUM
+
 function FixedStep:update(dt)
-  self.accum = math.min(self.accum + dt, MAX_ACCUM)
+  self.accum = math.min(self.accum + dt, self.maxAccum or MAX_ACCUM)
   while self.accum >= self.STEP do
     self.accum = self.accum - self.STEP
     self.callback(self.STEP)

src/core/FrameCap.lua

@@ -0,0 +1,72 @@
+-- Render frame-rate cap.  With a driver control panel forcing
+-- vsync off, the 160x144 game is trivially cheap and love.run will present
+-- thousands of frames a second; over hours that cooks the graphics driver
+-- until a restart, and it wastes power whenever the window is left open in
+-- the background.  A hard cap bounds the present rate.  Render-only: game
+-- logic is fixed-step off dt (src/core/FixedStep.lua), so pacing present()
+-- changes nothing about timing, audio, or determinism.
+--
+-- Persisted as save.options.fpsCap; applied from OptionsMenu and on boot
+-- via Game:applyOptions.  main.lua's love.run reads FrameCap.current each
+-- frame for its sleep budget.  The module never touches love.timer itself,
+-- so it stays safe under the headless test stub.
+
+local FrameCap = {}
+
+-- Selectable steps: the normal framerate stops between the floor and the
+-- ceiling.  STEPS[1] == MIN and STEPS[#STEPS] == MAX, so the nearest-step
+-- snap in normalize doubles as the clamp.  Cycling past the last wraps.
+FrameCap.STEPS = { 30, 40, 50, 60, 75, 90, 100, 120, 144, 160 }
+FrameCap.MIN = 30
+FrameCap.MAX = 160
+FrameCap.DEFAULT = 60
+
+-- The live cap the run loop paces to.  Defaults so the launcher and the
+-- save editor are paced before any save applies its stored option.
+FrameCap.current = FrameCap.DEFAULT
+
+-- Nearest valid step for an arbitrary value (a hand-edited options.lua or
+-- an old save with no fpsCap key), so a bad number degrades to something
+-- sane; nil / non-numbers fall back to the default.  A value below MIN or
+-- above MAX snaps to that end, since MIN/MAX are the first/last steps.
+function FrameCap.normalize(value)
+  value = tonumber(value)
+  if not value then return FrameCap.DEFAULT end
+  local best, bestDiff = FrameCap.DEFAULT, math.huge
+  for _, step in ipairs(FrameCap.STEPS) do
+    local diff = math.abs(step - value)
+    if diff < bestDiff then best, bestDiff = step, diff end
+  end
+  return best
+end
+
+-- plain numeric text for the options row (e.g. "60")
+function FrameCap.label(value)
+  return tostring(FrameCap.normalize(value))
+end
+
+-- cycle to the next/previous step, wrapping (the options row idiom)
+function FrameCap.cycle(value, dir)
+  local steps = FrameCap.STEPS
+  local snapped = FrameCap.normalize(value)
+  local cur = 1
+  for i, step in ipairs(steps) do
+    if step == snapped then cur = i break end
+  end
+  local nextIdx = (cur - 1 + (dir or 1)) % #steps + 1
+  return steps[nextIdx]
+end
+
+-- Store the chosen cap as the live value the run loop paces to.  Never
+-- touches love.timer, so it is safe headless -- the loop just reads the
+-- number back.  Returns the normalized value it stored.
+function FrameCap.apply(value)
+  FrameCap.current = FrameCap.normalize(value)
+  return FrameCap.current
+end
+
+function FrameCap.applyOptions(opts)
+  FrameCap.apply(opts and opts.fpsCap)
+end
+
+return FrameCap

src/core/Game.lua

@@ -17,7 +17,7 @@ local Game = {}
 
 -- dev-mode gate for the F5/backtick hotkeys; false keeps every src/dev
 -- module unloaded, so a player boot never touches a byte of dev code
-local devMode = os.getenv("POKEPORT_DEV") == "1"
+local devMode = os.getenv("POKEPORT_DEV") == "1" or _G.POKEPORT_DEV_MODE == true
 
 -- the boot screen ids (field.boot.screens); a plain function so the
 -- headless harness can borrow makeTitleState onto a stub game
@@ -68,6 +68,10 @@ function Game:load()
   local OverworldState = require("src.world.OverworldController")
   self.overworld = OverworldState
 
+  -- Discord Rich Presence: map name / battle status on the player's profile.
+  -- Soft-fail: missing Discord / IPC errors must never block boot.
+  pcall(function() require("src.core.DiscordPresence").init(self) end)
+
   -- every service is up but nothing is on the stack yet; this payload is
   -- the sanctioned way for a mod to obtain the Game object
   ModRuntime.emit("game.ready", { game = self })
@@ -95,7 +99,12 @@ end
 -- total conversion overrides.  Threaded into SaveData so persistence stays
 -- free of a Data dependency.
 function Game:bootConfig()
-  return self.data and self.data.field and self.data.field.boot
+  local boot = self.data and self.data.field and self.data.field.boot
+  -- stamp the running game version onto the boot config so a New Game records
+  -- it (SaveData.newGame reads boot.version); this is what routes a Blue
+  -- playthrough to save_blue.lua and Blue's version-gated content
+  if boot then boot.version = require("src.core.GameVersion").get() end
+  return boot
 end
 
 -- the title screen with its NEW GAME / CONTINUE wiring; used at boot
@@ -103,7 +112,7 @@ end
 function Game:makeTitleState()
   local OverworldState = require("src.world.OverworldController")
   local factory = Screens.get(self, bootScreens(self).title or "TitleState")
-  return factory.new(self, {
+  local title = factory.new(self, {
     onNewGame = function()
       while self.stack:top() do self.stack:pop() end
       -- New Game keeps the standalone options.lua preferences
@@ -126,6 +135,8 @@ function Game:makeTitleState()
       end
     end,
   })
+  title.screenId = title.screenId or "TitleState"
+  return title
 end
 
 -- QUIT from the START menu: back to the title like a power-cycle,
@@ -148,17 +159,53 @@ function Game:step(dt)
   self.stack:update(dt)
   -- play time for the trainer card / save screen
   self.save.playTime = (self.save.playTime or 0) + dt
-  require("src.core.Music").update(Data)
+  -- Music.update is NOT serviced here: it decrements fade counters and
+  -- drives ChipAudio once per call, so running it inside the logic step
+  -- would pitch music and sfx up under fast-forward. Game:update advances
+  -- it on its own real-time 60Hz accumulator instead.
+end
+
+-- The logic multiplier for this frame. Read live rather than cached so the
+-- Options row takes effect immediately; speedOverride is the --speed /
+-- POKEPORT_SPEED run argument, which wins over the saved option so a bot
+-- or screenshot run does not depend on whatever the player last chose.
+function Game:logicSpeed()
+  local GameSpeed = require("src.core.GameSpeed")
+  if self.speedOverride then return GameSpeed.clamp(self.speedOverride) end
+  local opts = self.save and self.save.options
+  return GameSpeed.clamp(opts and opts.speed or GameSpeed.DEFAULT)
 end
 
 function Game:update(dt)
   -- Touch timers / prior-frame auto-releases before the fixed step so
   -- deferred A and edge pulses land in Input's press queue for this step.
   TouchInput:update(dt)
-  FixedStep:update(dt)
+  -- Fast-forward scales only the logic clock (see src/core/GameSpeed.lua).
+  -- Give the accumulator room for one full frame at the current speed,
+  -- or the anti-spiral clamp quietly caps every level above ~15X.
+  local speed = self:logicSpeed()
+  FixedStep.maxAccum = math.max(0.25, speed * FixedStep.STEP * 1.5)
+  FixedStep:update(dt * speed)
+  -- Audio runs off real time at a fixed 60Hz regardless of game speed or
+  -- display refresh, so fades and chip synthesis keep their intended tempo
+  -- whether we are at 1X, 10X, or running with vsync disabled.
+  local step = FixedStep.STEP
+  self.audioAccum = math.min((self.audioAccum or 0) + dt, 0.25)
+  while self.audioAccum >= step do
+    self.audioAccum = self.audioAccum - step
+    require("src.core.Music").update(Data)
+  end
   -- Overworld tilt toggle tween: presentational, so it runs on the real
   -- frame dt (not the fixed logic step) for a smooth ~0.25s glide.
   require("src.render.Tilt").update(dt)
+  pcall(function() require("src.core.DiscordPresence").update(dt) end)
+  -- Steady-state memory backstop: advance the incremental collector one
+  -- small step every rendered frame.  The heavy GPU objects are now freed
+  -- explicitly (map eviction, battle exit, canvas/renderer swaps), so this
+  -- only has to keep ordinary Lua-heap garbage (per-frame tables/closures)
+  -- from drifting upward over a long session, and to spread collection out
+  -- so the default lazy schedule never batches it into a visible pause.
+  if collectgarbage then collectgarbage("step", 1) end
 end
 
 -- render.zones' identity default: unhooked, the zone list reaches the blit
@@ -248,10 +295,22 @@ function Game:keypressed(key)
     self:zoomStep(1)
     return
   elseif key == "2" then
-    -- cycle COLORS (GBC / OG / OG INV / GBC INV / CLASSIC); always on
-    local PaletteFX = require("src.render.PaletteFX")
-    self.save.options.colors = PaletteFX.cycleMode()
-    self:writeOptions()
+    -- cycle COLORS (GBC / OG / OG INV / GBC INV / CLASSIC); the pack change
+    -- forces Game.overworld:reloadMap, which rebuilds the live NPC array, so
+    -- hold it while a warp/transition or an on-screen scripted cutscene is
+    -- driving the overworld rather than tear the escort's NPCs out mid-move
+    local ow = self.overworld
+    local top = self.stack:top()
+    local busy = ow and (ow.transitioning
+      or (top == ow and (
+           (ow.runner and ow.runner.isRunning and ow.runner:isRunning())
+        or (ow.scriptMoves and #ow.scriptMoves > 0)
+        or ow.engaging or ow.emote)))
+    if not busy then
+      local PaletteFX = require("src.render.PaletteFX")
+      self.save.options.colors = PaletteFX.cycleMode()
+      self:writeOptions()
+    end
     return
   elseif key == "3" then
     -- cycle TILT OFF → 15 → 35 → 50 → OFF (mnemonic: 3D), free-roam only
@@ -302,6 +361,28 @@ function Game:gamepadaxis(joystick, axis, value)
   Input:gamepadaxis(joystick, axis, value)
 end
 
+-- Window focus/visibility flips: a release due while unfocused/hidden can
+-- be swallowed by the OS. Reset on both edges -- gaining focus with a
+-- physically held key won't re-fire keypressed, so trusting leftover
+-- state is worse than asking the player to re-press.
+function Game:focus(f)
+  Input:reset()
+  TouchInput:reset()
+end
+
+function Game:visible(v)
+  Input:reset()
+  TouchInput:reset()
+end
+
+-- A disconnected/dropped controller can't send the button-up for whatever
+-- it was holding, so drop all input state rather than try to guess which
+-- flags it owned.
+function Game:joystickremoved(joystick)
+  Input:reset()
+  TouchInput:reset()
+end
+
 function Game:touchpressed(id, x, y)
   TouchInput:touchpressed(id, x, y)
 end
@@ -363,6 +444,11 @@ function Game:applyOptions(opts)
   require("src.render.PaletteFX").applyOptions(opts)
   require("src.render.Tilt").applyOptions(opts)
   require("src.render.GBCFX").applyOptions(opts)
+  require("src.core.VideoMode").applyOptions(opts)
+  -- normalizes a nil/garbage cap to the 60 default, so old saves with no
+  -- fpsCap key pace at the standard rate (issue #88)
+  require("src.core.FrameCap").applyOptions(opts)
+  Input:applyBindings(opts.bindings)
 end
 
 function Game:restoreSave(loaded, recovered)

src/core/GameSpeed.lua

@@ -0,0 +1,54 @@
+-- Fast-forward multiplier for game logic.
+--
+-- Speeding up means running the 1/60 fixed step N times per real frame
+-- (Game:update), so everything driven by the step -- movement, text,
+-- battle timing, scripts -- advances N times faster while staying
+-- deterministic. Audio deliberately does NOT scale: Music.update drives
+-- fade counters and ChipAudio synthesis off its own real-time 60Hz
+-- accumulator in Game:update, so music and sfx play at normal pitch and
+-- tempo at every speed.
+--
+-- Vsync still caps how much work a real frame can do, so 10X is a target
+-- rather than a promise on a slow machine -- the logic simply runs as many
+-- steps as the frame budget allows.
+
+local GameSpeed = {}
+
+-- 20X exists for the bot runs (tests/drivers/route.lua): a full-route
+-- attempt is long enough that the iteration loop, not the engine, is the
+-- bottleneck. Vsync caps how much a real frame can do, so past 10X the
+-- multiplier is increasingly a ceiling rather than a rate.
+GameSpeed.LEVELS = { 1, 2, 4, 10, 20, 30, 50, 75, 100,200 }
+GameSpeed.DEFAULT = 1
+
+function GameSpeed.levelLabel(v)
+  v = tonumber(v) or GameSpeed.DEFAULT
+  if v == 1 then return "NORMAL" end
+  return tostring(v) .. "X"
+end
+
+-- nearest valid level for an arbitrary value (a hand-edited options.lua or
+-- a --speed argument), so a bad number degrades to something sane
+function GameSpeed.clamp(v)
+  v = tonumber(v)
+  if not v then return GameSpeed.DEFAULT end
+  local best, bestDiff = GameSpeed.DEFAULT, math.huge
+  for _, level in ipairs(GameSpeed.LEVELS) do
+    local diff = math.abs(level - v)
+    if diff < bestDiff then best, bestDiff = level, diff end
+  end
+  return best
+end
+
+-- cycle to the next/previous level, wrapping (the options row idiom)
+function GameSpeed.cycle(v, dir)
+  local levels = GameSpeed.LEVELS
+  local cur = 1
+  for i, level in ipairs(levels) do
+    if level == GameSpeed.clamp(v) then cur = i break end
+  end
+  local nextIdx = (cur - 1 + (dir or 1)) % #levels + 1
+  return levels[nextIdx]
+end
+
+return GameSpeed

src/core/GameVersion.lua

@@ -0,0 +1,77 @@
+-- Which Gen-1 game this process is running: Red (the historical default) or
+-- Blue.  One source of truth for everything that differs by version -- the
+-- accepted ROM hash, the import manifest, where the extracted cache lives,
+-- and the save-file suffix -- so the importer, cache mount, SaveData, title
+-- screen and palette all agree.
+--
+-- Red keeps every un-suffixed path it always used (save.lua, the root cache),
+-- so existing installs are untouched; Blue is namespaced under blue/ and
+-- _blue so both can be imported and played side by side.
+--
+-- Zero requires, so it loads during love.conf and under plain Lua for tools
+-- and tests.  The active version is a process-global set once at boot from
+-- the launcher's column choice (main.lua); it defaults to Red.
+
+local GameVersion = {}
+
+GameVersion.VERSIONS = {
+  red = {
+    id = "red",
+    label = "Red",
+    displayName = "Pokemon Red",
+    sha1 = "ea9bcae617fdf159b045185467ae58b2e4a48b9a",
+    manifest = "tools/rom_manifest.json",
+    cachePrefix = "",       -- Red owns the cache root (backwards compatible)
+    saveSuffix = "",        -- save.lua / save.lua.bak / save.lua.tmp
+  },
+  blue = {
+    id = "blue",
+    label = "Blue",
+    displayName = "Pokemon Blue",
+    sha1 = "d7037c83e1ae5b39bde3c30787637ba1d4c48ce2",
+    manifest = "tools/rom_manifest_blue.json",
+    cachePrefix = "blue/",  -- blue/data/generated, blue/assets/generated
+    saveSuffix = "_blue",   -- save_blue.lua / .bak / .tmp
+  },
+}
+
+-- Launcher column order (Yellow is still a placeholder, handled by the UI).
+GameVersion.ORDER = { "red", "blue" }
+
+GameVersion.current = "red"
+
+function GameVersion.set(id)
+  GameVersion.current = GameVersion.VERSIONS[id] and id or "red"
+  return GameVersion.current
+end
+
+function GameVersion.get()
+  return GameVersion.current
+end
+
+function GameVersion.isBlue()
+  return GameVersion.current == "blue"
+end
+
+-- Metadata for a version id, defaulting to the active one.
+function GameVersion.info(id)
+  return GameVersion.VERSIONS[id or GameVersion.current]
+end
+
+function GameVersion.saveSuffix(id)
+  return GameVersion.info(id).saveSuffix
+end
+
+function GameVersion.cachePrefix(id)
+  return GameVersion.info(id).cachePrefix
+end
+
+-- The version a ROM belongs to, by its SHA-1, or nil for an unknown ROM.
+function GameVersion.forSha1(sha1)
+  for id, info in pairs(GameVersion.VERSIONS) do
+    if info.sha1 == sha1 then return id end
+  end
+  return nil
+end
+
+return GameVersion

src/core/Input.lua

@@ -3,7 +3,7 @@
 
 local Input = {}
 
-local BINDINGS = {
+local DEFAULT_BINDINGS = {
   up = "up", w = "up",
   down = "down", s = "down",
   left = "left", a = "left",
@@ -18,8 +18,11 @@ local BINDINGS = {
 -- Escape = start for desktop friendliness.
 
 -- LÖVE's standard gamepad mapping (SDL game controller DB), consistent
--- across Xbox/PlayStation/generic controllers on desktop and mobile.
-local GAMEPAD_BINDINGS = {
+-- across Xbox/PlayStation/generic controllers on desktop and mobile. Some
+-- third-party pads report their own SDL mapping for a given physical
+-- button (e.g. Select/Back/View on off-brand XInput pads), which is what
+-- src/ui/BindingsMenu.lua's rebinding is for -- see applyBindings below.
+local DEFAULT_GAMEPAD_BINDINGS = {
   dpup = "up", dpdown = "down", dpleft = "left", dpright = "right",
   a = "a", b = "b",
   start = "start", back = "select",
@@ -32,48 +35,131 @@ local STICK_ON = 0.5
 local STICK_OFF = 0.3
 
 function Input:init()
+  self:applyBindings(nil)
+  self:reset()
+end
+
+-- Layers a player's rebind choices (save.options.bindings, written by
+-- src/ui/BindingsMenu.lua) on top of the defaults above. A rebind adds an
+-- extra way to trigger that action instead of replacing the default key,
+-- so e.g. Z/Enter/Space all still press A even after binding a 4th key to
+-- it. Call whenever options load or change (see Game:applyOptions and
+-- BindingsMenu:storeBinding) -- without this the menu records a choice
+-- that never actually reaches gameplay.
+function Input:applyBindings(overlay)
+  local keys, pads = {}, {}
+  for key, action in pairs(DEFAULT_BINDINGS) do keys[key] = action end
+  for button, action in pairs(DEFAULT_GAMEPAD_BINDINGS) do pads[button] = action end
+  for actionId, binding in pairs(overlay or {}) do
+    if type(binding) == "table" then
+      if binding.key then keys[binding.key] = actionId end
+      if binding.pad then pads[binding.pad] = actionId end
+    elseif type(binding) == "string" then
+      keys[binding] = actionId
+    end
+  end
+  self.keyBindings = keys
+  self.padBindings = pads
+end
+
+-- Purely event-driven state (press sets true, release sets false) has no
+-- fallback if a release event never arrives -- focus loss, a minimized
+-- window, or a disconnected gamepad can all swallow the key-up/button-up
+-- that would have cleared a held direction. Called from Game on those
+-- transitions so a stuck flag can't outlive them.
+function Input:reset()
   self.state = {}
   self.pressQueue = {}
   self.pressed = {}
+  self.sources = {}
   self.stickAxis = { x = 0, y = 0 }
   self.stickDir = nil
 end
 
-function Input:keypressed(key)
-  local btn = BINDINGS[key]
-  if btn then
+-- Multiple physical sources (W + Up, d-pad + stick, etc.) can claim the
+-- same GB button. Track them individually so releasing one doesn't clear
+-- a hold another source still owns, and so a press+release that both land
+-- before the next FixedStep can't be revived when step() drains the queue.
+local function press(self, btn, source)
+  local sources = self.sources[btn]
+  if not sources then
+    sources = {}
+    self.sources[btn] = sources
+  end
+  if not sources[source] then
+    sources[source] = true
     table.insert(self.pressQueue, btn)
   end
+  self.state[btn] = true
 end
 
-function Input:keyreleased(key)
-  local btn = BINDINGS[key]
-  if btn then
+local function release(self, btn, source)
+  local sources = self.sources[btn]
+  if sources then
+    sources[source] = nil
+    if next(sources) == nil then
+      -- Leave an empty table (not nil) so step() can tell a real
+      -- source was released before the queue drained, versus a
+      -- synthetic pressQueue inject that never had sources at all.
+      self.state[btn] = false
+    end
+  else
     self.state[btn] = false
   end
 end
 
+function Input:keypressed(key)
+  local btn = self.keyBindings[key]
+  if btn then
+    press(self, btn, "key:" .. key)
+  end
+end
+
+function Input:keyreleased(key)
+  local btn = self.keyBindings[key]
+  if btn then
+    release(self, btn, "key:" .. key)
+  end
+end
+
 -- Called once per fixed step: promote queued presses to this step's edges.
+-- Hold state is owned by live sources (updated in press/release), not
+-- re-asserted here -- otherwise a same-frame press→release leaves the
+-- button stuck on after the queue drains.
+-- Synthetic injects (tests/drivers writing pressQueue directly, with no
+-- source entry) still set state so scripted holds keep working.
 function Input:step()
   self.pressed = {}
   for _, btn in ipairs(self.pressQueue) do
     self.pressed[btn] = true
-    self.state[btn] = true
+    local sources = self.sources[btn]
+    if sources == nil then
+      -- synthetic pressQueue inject (tests/drivers): no live source map
+      self.state[btn] = true
+    elseif next(sources) ~= nil then
+      self.state[btn] = true
+    end
+    -- sources == {}: real press fully released before this step — keep up
+  end
+  for btn, sources in pairs(self.sources) do
+    if next(sources) == nil then
+      self.sources[btn] = nil
+    end
   end
   self.pressQueue = {}
 end
 
 function Input:gamepadpressed(joystick, button)
-  local btn = GAMEPAD_BINDINGS[button]
+  local btn = self.padBindings[button]
   if btn then
-    table.insert(self.pressQueue, btn)
+    press(self, btn, "pad:" .. button)
   end
 end
 
 function Input:gamepadreleased(joystick, button)
-  local btn = GAMEPAD_BINDINGS[button]
+  local btn = self.padBindings[button]
   if btn then
-    self.state[btn] = false
+    release(self, btn, "pad:" .. button)
   end
 end
 
@@ -103,10 +189,10 @@ function Input:gamepadaxis(joystick, axis, value)
 
   if newDir ~= self.stickDir then
     if self.stickDir then
-      self.state[self.stickDir] = false
+      release(self, self.stickDir, "stick")
     end
     if newDir then
-      table.insert(self.pressQueue, newDir)
+      press(self, newDir, "stick")
     end
     self.stickDir = newDir
   end

src/core/Music.lua

@@ -114,6 +114,7 @@ local SPECIAL = {
   oakRoute = "Music_Routes2",
   bike = "Music_BikeRiding",
   surf = "Music_Surfing",
+  evolution = "Music_SafariZone",
 }
 
 -- the label a scene role resolves to; call sites keep their own presence
@@ -253,6 +254,7 @@ function Music.stop()
   require("src.core.ChipAudio").stopMusic()
   state.current, state.source, state.loopSource, state.fade = nil, nil, nil, nil
   state.chip = false
+  state.pendingRestore = nil
   if previous and Runtime.wants("music.stopped") then
     Runtime.emit("music.stopped", { song = previous })
   end
@@ -346,14 +348,24 @@ end
 function Music.playOnce(data, song)
   if not songDef(data, song) then return false end
   Music.play(data, song, false, { reason = "once" })
+  -- play() can no-op (hook silence, failed def); only arm restore when
+  -- the jingle actually became current
+  if state.current ~= song then return false end
   state.pendingRestore = true
   return true
 end
 
+local function chipAwaitingFirstBuffer()
+  return state.chip
+     and require("src.core.ChipAudio").awaitingFirstBuffer()
+end
+
 -- is a playOnce jingle still sounding?  (AnimateHealingMachine's
 -- .waitLoop2 holds the healing machine until MUSIC_PKMN_HEALED ends)
 function Music.oneShotPlaying()
   if not state.pendingRestore then return false end
+  -- threaded chip songs start silent for ~1 frame; that gap is not "over"
+  if chipAwaitingFirstBuffer() then return true end
   local src = state.source
   if not src then return false end
   local ok, playing = pcall(src.isPlaying, src)
@@ -440,8 +452,10 @@ function Music.update(data)
     state.source = loopSrc
     pcall(loopSrc.play, loopSrc)
   end
+  -- do not treat "threaded source still waiting on its first buffer" as
+  -- ended, or playOnce jingles get restored over before they can sound
   if state.pendingRestore and sourceStopped(state.source)
-     and not state.loopSource then
+     and not state.loopSource and not chipAwaitingFirstBuffer() then
     Music.restoreMap(data)
   end
 end

src/core/SaveData.lua

@@ -18,14 +18,157 @@ local Semver = require("src.mods.Semver")
 local Boxes = require("src.pokemon.Boxes")
 local Bag = require("src.inventory.Bag")
 
+local GameVersion = require("src.core.GameVersion")
+
 local SaveData = {}
 
-local FILENAME = "save.lua"
+-- Progress files carry the game-version suffix so Red and Blue saves coexist:
+-- Red keeps save.lua / .bak / .tmp exactly as before; Blue is save_blue.lua
+-- (+ .bak/.tmp).  options.lua is deliberately shared across versions (it holds
+-- global preferences and the mod enable-state, not per-playthrough data).
 local OPTIONS_FILENAME = "options.lua"
--- one rolling backup plus the staged-write witness; load promotes either
--- when the main file is missing or fails to parse
-local BACKUP_FILENAME = FILENAME .. ".bak"
-local TMP_FILENAME = FILENAME .. ".tmp"
+
+-- Main / backup / staged-witness names for a version (defaults to the active
+-- one).  The backup is a rolling copy and .tmp is the staged-write witness;
+-- load promotes either when the main file is missing or fails to parse.
+local function saveNames(version)
+  local main = "save" .. GameVersion.saveSuffix(version) .. ".lua"
+  return main, main .. ".bak", main .. ".tmp"
+end
+
+-- The main save filename for a version -- used by the title screen's
+-- CONTINUE gate so it looks for the right game's save.
+function SaveData.saveFilename(version)
+  local main = saveNames(version)
+  return main
+end
+
+-- ------- portable mode
+-- LÖVE's save directory is always the OS per-user path derived from the
+-- identity (conf.lua), so it can't be relocated at runtime. Portable mode
+-- instead drops a plain-Lua io.* filesystem next to the game whenever a
+-- `portable.txt` marker sits beside the executable/source, letting a USB
+-- copy carry its own save.lua/options.lua (and, through options.lua, the
+-- mod enable-state) rather than leaving them on the host machine.
+local PORTABLE_MARKER = "portable.txt"
+local SEP = package.config:sub(1, 1)
+
+local portableChecked = false
+local portableBase = false      -- resolved base dir when active, else false
+local portableFsCache = nil
+
+local function pathExists(path)
+  local f = io.open(path, "rb")
+  if not f then return false end
+  f:close()
+  return true
+end
+
+-- an io.* filesystem exposing the love.filesystem subset the save/options
+-- round-trip needs (getInfo/read/write/remove), rooted at `dir`
+local function makePortableFs(dir)
+  local function full(name) return dir .. SEP .. name end
+  return {
+    getInfo = function(name)
+      if not pathExists(full(name)) then return nil end
+      return { type = "file" }
+    end,
+    read = function(name)
+      local f = io.open(full(name), "rb")
+      if not f then return nil, "no file: " .. name end
+      local data = f:read("*a")
+      f:close()
+      return data
+    end,
+    write = function(name, data)
+      local f, err = io.open(full(name), "wb")
+      if not f then return false, err end
+      f:write(data)
+      f:close()
+      return true
+    end,
+    remove = function(name)
+      os.remove(full(name))
+      return true
+    end,
+  }
+end
+
+local function detectPortable()
+  if portableChecked then return portableBase end
+  portableChecked = true
+  portableBase = false
+  if not (love and love.filesystem) then return false end
+  -- Desktop only: portable mode carries the save (and, since issue #74, the
+  -- ROM cache) in the game folder next to the executable/source.  On
+  -- Android/iOS the source is a read-only package with no such folder, so
+  -- portable mode never applies there.
+  if love.system and love.system.getOS then
+    local osName = love.system.getOS()
+    if osName ~= "Windows" and osName ~= "Linux" and osName ~= "OS X" then
+      return false
+    end
+  end
+  local src = love.filesystem.getSource and love.filesystem.getSource()
+  local sbd = love.filesystem.getSourceBaseDirectory
+    and love.filesystem.getSourceBaseDirectory()
+  -- A packaged macOS build nests the game inside gen1recomp.app/Contents/
+  -- Resources, so getSource()/getSourceBaseDirectory() point INSIDE the
+  -- bundle -- not where the player drops portable.txt (next to the .app).
+  -- Recover the folder containing the .app so a packaged app finds its
+  -- marker.  On Windows/Linux the executable is not a bundle, so this is nil
+  -- and the plain source-base directory (next to the .exe/AppImage) is used.
+  local function appContainer(path)
+    local appPath = path and path:match("^(.*%.app)/Contents/")
+    return appPath and appPath:match("^(.*)/[^/]+$") or nil
+  end
+  -- Order: the .app's containing folder (packaged macOS), then the
+  -- source-base directory (next to a packaged .exe/AppImage), then the
+  -- source itself (a `love <gamedir>` run drops portable.txt in the game
+  -- folder).  First one holding the marker wins.  Built by appending so a
+  -- nil (e.g. no .app in the path) never truncates the ipairs scan.
+  local candidates = {}
+  local appDir = appContainer(src) or appContainer(sbd)
+  if appDir then candidates[#candidates + 1] = appDir end
+  if sbd then candidates[#candidates + 1] = sbd end
+  if src then candidates[#candidates + 1] = src end
+  for _, base in ipairs(candidates) do
+    if base ~= "" and pathExists(base .. SEP .. PORTABLE_MARKER) then
+      portableBase = base
+      break
+    end
+  end
+  return portableBase
+end
+
+function SaveData.isPortable()
+  return detectPortable() ~= false
+end
+
+-- the raw portable-folder path (for callers building their own nested
+-- paths, e.g. the ROM-derived asset cache), or nil when portable mode
+-- is off
+function SaveData.portableBaseDir()
+  return detectPortable() or nil
+end
+
+-- the io.* filesystem for the active portable folder, or nil when off
+function SaveData.portableFs()
+  local base = detectPortable()
+  if not base then return nil end
+  if not portableFsCache then portableFsCache = makePortableFs(base) end
+  return portableFsCache
+end
+
+-- Resolve the filesystem a persistent read/write should land on: an
+-- explicitly injected non-love fs (headless tests, the mod loader's stub)
+-- always wins; otherwise portable mode reroutes off the OS save directory.
+local function persistFs(fs)
+  if fs and love and love.filesystem and fs ~= love.filesystem then
+    return fs
+  end
+  return SaveData.portableFs() or fs or (love and love.filesystem)
+end
 
 -- Port + original Options menu defaults.  Missing keys on load are filled
 -- from this table so old options.lua files stay compatible.
@@ -41,10 +184,16 @@ function SaveData.defaultOptions()
     musicVol = 7,
     sfxVol = 7,
     musicFilter = 0,
+    -- logic fast-forward multiplier; audio is unaffected (GameSpeed.lua)
+    speed = 1,
     -- port display options (OptionsMenu / hotkeys 2/3/5)
     colors = "gbc",
     tilt = 0,
     gbcfx = 0,
+    -- windowed | borderless (desktop fullscreen); ignored on mobile
+    videoMode = "windowed",
+    -- hard render frame-rate cap; render-only pacing (issue #88, FrameCap.lua)
+    fpsCap = 60,
     -- Native mod enablement is an installation option, not save-slot data.
     -- Missing entries mean enabled so newly installed mods work by default.
     mods = {},
@@ -90,7 +239,7 @@ end
 -- love.filesystem, so the mod loader's injected filesystem can carry the
 -- options round-trip headless (no love global).
 function SaveData.saveOptions(opts, fs)
-  fs = fs or love.filesystem
+  fs = persistFs(fs)
   opts = SaveData.mergeOptions(opts)
   -- modOptions is per-mod nested state: fold the on-disk sub-tree
   -- underneath (newest value winning per key) so one caller's partial
@@ -119,7 +268,7 @@ function SaveData.saveOptions(opts, fs)
 end
 
 function SaveData.loadOptions(fs)
-  fs = fs or love.filesystem
+  fs = persistFs(fs)
   local data, err = readTable(fs, OPTIONS_FILENAME)
   if not data then
     if fs.getInfo(OPTIONS_FILENAME) then
@@ -307,7 +456,7 @@ end)
 -- afterwards either way
 SaveData.addCoreMigration(1, function(save)
   if type(save.options) == "table"
-      and not love.filesystem.getInfo(OPTIONS_FILENAME) then
+      and not persistFs(nil).getInfo(OPTIONS_FILENAME) then
     SaveData.saveOptions(save.options)
   end
 end)
@@ -318,6 +467,17 @@ SaveData.addCoreMigration(1, function(save)
   Boxes.ensure(save)
 end)
 
+-- game version (Red vs Blue) prep: saves written before Blue support
+-- existed carry no `version` tag, and Red is the only game that ever
+-- shipped, so default every untagged save to Red.  from=2 so it catches
+-- every pre-bump save (format 1 and 2) and is skipped once re-stamped to
+-- the current format.
+SaveData.addCoreMigration(2, function(save)
+  if not save.version then
+    save.version = "red"
+  end
+end)
+
 -- ------- write
 
 -- Game progress only; options are written separately via saveOptions.
@@ -327,6 +487,9 @@ end)
 -- itself rolls the last good save into .bak and stages the new bytes as
 -- a .tmp witness before the swap, so a crash mid-write is recoverable.
 function SaveData.save(data, mods)
+  -- write to the file matching this save's own version, not just the active
+  -- one, so a Blue playthrough always lands in save_blue.lua
+  local FILENAME, BACKUP_FILENAME, TMP_FILENAME = saveNames(data.version)
   if data.options then
     SaveData.saveOptions(data.options)
   end
@@ -338,7 +501,7 @@ function SaveData.save(data, mods)
     if k ~= "options" then gameOnly[k] = v end
   end
   local encoded = SaveSerializer.encode(gameOnly)
-  local fs = love.filesystem
+  local fs = persistFs(nil)
   if fs.getInfo(FILENAME) then
     local prev = fs.read(FILENAME)
     if prev then fs.write(BACKUP_FILENAME, prev) end
@@ -366,8 +529,11 @@ end
 -- returns the parsed save plus "tmp"/"bak" when the main file was gone
 -- or corrupt and a staged/backup copy was promoted; Game surfaces the
 -- recovery on the load report
-function SaveData.load()
-  local fs = love.filesystem
+function SaveData.load(version)
+  -- version defaults to the active game (set at boot from the launcher);
+  -- an explicit version lets callers/tests load a specific game's save.
+  local FILENAME, BACKUP_FILENAME, TMP_FILENAME = saveNames(version)
+  local fs = persistFs(nil)
   local data, err = readTable(fs, FILENAME)
   local recovered
   if not data then
@@ -516,8 +682,8 @@ end
 
 local function scrubMaps(save, data, report)
   local boot = (data.field and data.field.boot) or {}
-  local spawn = { map = boot.startMap or "PALLET_TOWN",
-                  x = boot.startX or 5, y = boot.startY or 6 }
+  local spawn = { map = boot.startMap or "REDS_HOUSE_2F",
+                  x = boot.startX or 3, y = boot.startY or 6 }
   -- heal point first, so the player fallback below always lands somewhere
   -- valid; boot's heal cell (threaded from field.boot) is the last resort
   if save.lastHeal and not known(data.maps, save.lastHeal.map) then
@@ -627,13 +793,36 @@ end
 -- boot is Data.field.boot, threaded in by Game: this module must not reach
 -- into Data itself.  Every read falls back to the Red literal it replaced,
 -- so an absent or partial config still produces the vanilla new game.
+-- Where blackouts and ESCAPE ROPE return to for a given boot config.
+--
+-- In vanilla this is NOT the spawn. wLastBlackoutMap is zero-filled at new
+-- game and PALLET_TOWN is map 0, so the player starts in the bedroom
+-- (special_warps.asm NewGameWarp) but blacks out to Pallet Town's fly_warp
+-- cell (5, 6). A world that moves the spawn without naming a heal point
+-- keeps the two together -- it may have no Pallet Town at all.
+--
+-- Shared with the Hall of Fame reset, which pokered writes as a literal
+-- (HallOfFameResetEventsAndSaveScript: wLastBlackoutMap := PALLET_TOWN)
+-- rather than deriving from the spawn.
+function SaveData.defaultHeal(boot)
+  boot = type(boot) == "table" and boot or {}
+  local h = boot.lastHeal
+  if h then return { map = h.map, x = h.x, y = h.y } end
+  local map = boot.startMap or "REDS_HOUSE_2F"
+  if map == "REDS_HOUSE_2F" then return { map = "PALLET_TOWN", x = 5, y = 6 } end
+  return { map = map, x = boot.startX or 3, y = boot.startY or 6 }
+end
+
 function SaveData.newGame(boot)
   boot = type(boot) == "table" and boot or {}
-  local map = boot.startMap or "PALLET_TOWN"
-  local x, y = boot.startX or 5, boot.startY or 6
-  local heal = boot.lastHeal or {}
+  local map = boot.startMap or "REDS_HOUSE_2F"
+  local x, y = boot.startX or 3, boot.startY or 6
+  local heal = SaveData.defaultHeal(boot)
   local save = {
     meta = { format = Version.saveFormat, mods = {} },
+    -- which game this playthrough is (Red vs Blue).  Only Red ships today;
+    -- boot carries the choice once Blue support lands.
+    version = boot.version or "red",
     player = {
       map = map,
       x = x,
@@ -655,6 +844,12 @@ function SaveData.newGame(boot)
     -- where blackouts and ESCAPE ROPE return to (updated by nurses);
     -- copied, never aliased, so a save never writes back into Data
     lastHeal = { map = heal.map or map, x = heal.x or x, y = heal.y or y },
+    -- Interiors inherit the SGB palette of the last outdoor map. wLastMap
+    -- is zero-filled at new game and PALLET_TOWN is map 0, so before the
+    -- player has ever been outdoors that palette is Pallet Town's -- which
+    -- matters because the vanilla spawn (REDS_HOUSE_2F) is itself indoors.
+    -- Without this the palette falls through to the ROUTE default.
+    lastOutdoor = { id = heal.map or map, x = heal.x or x, y = heal.y or y },
     repelSteps = 0,
     -- per-mod persistence (mod.save) lives under here, keyed by mod id
     modData = {},

src/core/TouchInput.lua

@@ -75,6 +75,21 @@ function TouchInput:init()
   self.selectFired = false     -- one SELECT per two-finger gesture cluster
 end
 
+-- LÖVE has no touchcancelled event, so a touch interrupted by the OS (app
+-- backgrounded mid-touch, a system gesture stealing the finger) never fires
+-- touchreleased and would otherwise strand its direction held forever.
+-- Called from Game alongside Input:reset() on focus/visibility loss.
+function TouchInput:reset()
+  for _, touch in pairs(self.touches) do
+    releaseDir(self, touch)
+  end
+  self.touches = {}
+  self.pendingA = nil
+  self.armed = {}
+  self.autoRelease = {}
+  self.selectFired = false
+end
+
 local function pulse(self, key)
   Input:keypressed(key)
   self.armed[#self.armed + 1] = key

src/core/Version.lua

@@ -7,13 +7,13 @@ local Version = {
   engine = "1.0.0",       -- game/engine release (semver triple)
   modApi = 2,             -- mod API major (manifest `api`)
   linkProtocol = 2,       -- link handshake wire version (Handshake.PROTOCOL)
-  saveFormat = 2,         -- save.meta.format
+  saveFormat = 3,         -- save.meta.format
   cache = "rom-cache-v5", -- ROM import cache generation (RomImporter marker)
 }
 
--- "Pokemon Red (Gen 1 Recompilation Project) v1.0.0"
+-- "gen1recomp v1.0.0"
 function Version.title(base)
-  return (base or "Pokemon Red (Gen 1 Recompilation Project)")
+  return (base or "gen1recomp")
     .. " v" .. Version.engine
 end
 

src/core/VideoMode.lua

@@ -0,0 +1,54 @@
+-- Windowed vs borderless (desktop) fullscreen.
+--
+-- Persisted as save.options.videoMode.  Applied from OptionsMenu and on
+-- boot via Game:applyOptions.  No-ops on mobile and in headless stubs
+-- that lack love.window.
+
+local VideoMode = {}
+
+VideoMode.MODES = { "windowed", "borderless" }
+VideoMode.DEFAULT = "windowed"
+
+local LABELS = {
+  windowed = "WINDOWED",
+  borderless = "BORDERLESS",
+}
+
+function VideoMode.normalize(mode)
+  if mode == "borderless" then return "borderless" end
+  return VideoMode.DEFAULT
+end
+
+function VideoMode.modeLabel(mode)
+  return LABELS[VideoMode.normalize(mode)] or LABELS[VideoMode.DEFAULT]
+end
+
+function VideoMode.isMobile()
+  if not love or not love.system or not love.system.getOS then return false end
+  local osName = love.system.getOS()
+  return osName == "Android" or osName == "iOS"
+end
+
+-- Cycle windowed <-> borderless (dir ignored; two modes).
+function VideoMode.cycle(mode, _dir)
+  return VideoMode.normalize(mode) == "borderless" and "windowed" or "borderless"
+end
+
+-- Push the mode into the live window.  Safe when love.window is missing.
+function VideoMode.apply(mode)
+  if VideoMode.isMobile() then return end
+  if not love or not love.window or not love.window.setFullscreen then return end
+  mode = VideoMode.normalize(mode)
+  if mode == "borderless" then
+    -- "desktop" = borderless fullscreen matching the display
+    love.window.setFullscreen(true, "desktop")
+  else
+    love.window.setFullscreen(false)
+  end
+end
+
+function VideoMode.applyOptions(opts)
+  VideoMode.apply(opts and opts.videoMode)
+end
+
+return VideoMode

src/core/chip_worker.lua

@@ -0,0 +1,96 @@
+-- ChipAudio synthesis worker (love.thread).  Runs the Game Boy audio synth
+-- (src/core/ChipSynth.lua) off the main thread so a map/battle song change
+-- never stutters the render thread: filling the ~6s playback queue from
+-- scratch is ~200ms of Lua synthesis, and this is where it now happens.
+--
+-- Protocol -- main thread pushes command tables onto the "chipaudio_cmd"
+-- channel and drains produced buffers off "chipaudio_out":
+--   cmd = "play"  { gen, header, allowLoops, audio }  start a song
+--   cmd = "stop"                                       halt production
+--   cmd = "invalidate"                                 drop the bank cache
+--   cmd = "quit"                                        end the thread
+-- out buffers are tagged with the play's `gen` so the main thread can
+-- discard anything left over from a superseded song:
+--   { gen, sd = SoundData }   one rendered buffer
+--   { gen, done = true }      the song ended (non-looping jingle finished)
+--   { gen, error = msg }      build/synth failed; main logs and gives up
+
+require("love.thread")
+require("love.timer")
+require("love.sound")
+require("love.filesystem")
+
+-- Load the synth explicitly via love.filesystem (a fresh thread Lua state does
+-- not necessarily carry the package searcher that resolves "src.core..."):
+local ChipSynth = assert(love.filesystem.load("src/core/ChipSynth.lua"))()
+
+local cmdCh = love.thread.getChannel("chipaudio_cmd")
+local outCh = love.thread.getChannel("chipaudio_out")
+
+local BUF = ChipSynth.MUSIC_BUFFER_SAMPLES
+-- how many finished buffers may sit in the hand-off channel before the worker
+-- pauses.  The deep (~6s) playback depth lives in the main-thread Source; this
+-- only bounds the worker's look-ahead (and its memory) between drains.
+local LOOKAHEAD = 8
+
+local gen = nil        -- active song generation, or nil when stopped
+local engine = nil     -- the ChipSynth engine producing the current song
+local finished = false -- the current song ran out (non-looping)
+local data = nil       -- { audio = <slim audio tables> } for ROM bank/wave reads
+
+local function handle(cmd)
+  if cmd.cmd == "play" then
+    gen = cmd.gen
+    finished = false
+    engine = nil
+    outCh:clear() -- drop any buffers left from the previous song
+    data = { audio = cmd.audio }
+    local ok, eng = pcall(ChipSynth.newEngine, data, cmd.header,
+                          { allowLoops = cmd.allowLoops })
+    if ok then
+      engine = eng
+    else
+      outCh:push({ gen = gen, error = tostring(eng) })
+      finished = true
+    end
+  elseif cmd.cmd == "stop" then
+    gen = nil
+    engine = nil
+    finished = false
+    outCh:clear()
+  elseif cmd.cmd == "invalidate" then
+    ChipSynth.invalidateBanks()
+  elseif cmd.cmd == "quit" then
+    return true
+  end
+  return false
+end
+
+while true do
+  -- drain every pending command first, so a stop/new-play is seen promptly
+  local quit = false
+  local cmd = cmdCh:pop()
+  while cmd do
+    if handle(cmd) then quit = true end
+    cmd = cmdCh:pop()
+  end
+  if quit then break end
+
+  if engine and not finished and gen and outCh:getCount() < LOOKAHEAD then
+    local activeGen = gen
+    local ok, sd = pcall(ChipSynth.soundData, engine, BUF, 2)
+    if not ok then
+      outCh:push({ gen = activeGen, error = tostring(sd) })
+      finished = true
+    else
+      outCh:push({ gen = activeGen, sd = sd })
+      if engine:finished() then
+        outCh:push({ gen = activeGen, done = true })
+        finished = true
+      end
+    end
+  else
+    -- nothing to do (idle, or the look-ahead is full): yield the core
+    love.timer.sleep(0.001)
+  end
+end

src/import/CacheFs.lua

@@ -0,0 +1,283 @@
+-- Routes ROM-derived cache I/O (data/generated, assets/generated and the
+-- rom-cache.complete marker) to the right place.
+--
+-- Normally the cache lives in LÖVE's per-user OS save directory and is
+-- written through love.filesystem.  In portable mode it lives in the game
+-- folder next to the executable instead (the folder holding portable.txt --
+-- see SaveData), so nothing is left on the host machine.  That folder is
+-- written with raw io.* (love.filesystem can only write to the save dir) and
+-- read back through love.filesystem, require and love.graphics.newImage --
+-- which works because the folder is on the physfs read path:
+--
+--   * Source runs (`love <gamedir>`, what the Play-* launchers use): the
+--     folder IS the physfs source, so it is already readable.
+--   * Fused builds (the packaged .app/.exe): the folder sits next to the
+--     executable and is NOT normally readable, so CacheFs mounts it onto the
+--     read path via PhysFS.  love.filesystem.mount refuses external folders,
+--     but the underlying PHYSFS_mount (exported from love's framework) allows
+--     them; we call it through LuaJIT's FFI.
+--
+-- Directories in the portable folder are created with a plain mkdir syscall
+-- via FFI rather than os.execute, so importing never flashes a console window
+-- on Windows (issue #74 -- the old per-file `os.execute("mkdir")` froze the
+-- app behind a storm of one-frame cmd.exe windows).
+--
+-- Portable mode is desktop-only (Windows/Linux/macOS); on Android/iOS the
+-- source is a read-only package with no game folder to write into, so
+-- SaveData.isPortable() is false there and this module falls back to the
+-- ordinary love.filesystem/save-directory behaviour.
+
+local CacheFs = {}
+
+local SEP = package.config:sub(1, 1)
+
+-- Cache-relative paths are prefixed with this before every read/write, so a
+-- Blue import lands in blue/ (see src.core.GameVersion) while a Red import
+-- keeps the historical root.  The launcher sets it per import / per readiness
+-- check; it stays "" for Red.  Runtime *reads* (require / newImage) do NOT go
+-- through here -- CacheFs.mountVersion overlays the active version's subtree
+-- onto the un-prefixed paths instead.
+CacheFs.prefix = ""
+
+local function withPrefix(rel)
+  local p = CacheFs.prefix
+  if p == nil or p == "" then return rel end
+  return p .. rel
+end
+
+-- lazily-resolved windowless mkdir: function(absolutePath) or false when
+-- FFI is unavailable (the cache then stays on the save directory)
+local mkdirFn = nil
+
+local function resolveMkdir()
+  if mkdirFn ~= nil then return mkdirFn end
+  mkdirFn = false
+  local ok, ffi = pcall(require, "ffi")
+  if not ok then return mkdirFn end
+  if ffi.os == "Windows" then
+    -- kernel32 is reliably resolvable through ffi.C on Windows (the engine
+    -- already binds it in DiscordPresence); CreateDirectoryA returns
+    -- nonzero on success and 0 when the directory already exists -- both
+    -- fine, the result is ignored.
+    pcall(ffi.cdef,
+      "int CreateDirectoryA(const char *lpPathName, void *lpSecurityAttributes);")
+    local resolved = pcall(function() return ffi.C.CreateDirectoryA end)
+    if resolved then
+      mkdirFn = function(path) pcall(ffi.C.CreateDirectoryA, path, nil) end
+    end
+  else
+    pcall(ffi.cdef, "int mkdir(const char *pathname, unsigned int mode);")
+    local resolved = pcall(function() return ffi.C.mkdir end)
+    if resolved then
+      mkdirFn = function(path) pcall(ffi.C.mkdir, path, 493) end -- 0755
+    end
+  end
+  return mkdirFn
+end
+
+-- Mount an external directory onto the physfs read path (appended, so the
+-- game's own source always wins a name clash).  Returns true on success.
+--
+-- PHYSFS_mount is exported by love's own binary.  How ffi finds it differs
+-- per platform: on macOS/Linux the symbol is in the default namespace, so
+-- ffi.C resolves it; on Windows it lives in love.dll, which ffi.C does NOT
+-- search, so love.dll is loaded explicitly with ffi.load("love").  Try the
+-- default first, then love.
+local physfsMountFn = nil
+local function resolveMount()
+  if physfsMountFn ~= nil then return physfsMountFn end
+  physfsMountFn = false
+  local ok, ffi = pcall(require, "ffi")
+  if not ok then return physfsMountFn end
+  pcall(ffi.cdef,
+    "int PHYSFS_mount(const char *newDir, const char *mountPoint, int appendToPath);")
+  local libs = {
+    function() return ffi.C end,
+    function() return ffi.load("love") end,
+  }
+  for _, getlib in ipairs(libs) do
+    local okl, lib = pcall(getlib)
+    if okl and lib then
+      local oks, fn = pcall(function() return lib.PHYSFS_mount end)
+      if oks and fn then
+        physfsMountFn = function(d, append)
+          if append == nil then append = true end
+          local okr, ret = pcall(fn, d, "", append and 1 or 0)
+          return okr and ret ~= 0
+        end
+        break
+      end
+    end
+  end
+  return physfsMountFn
+end
+
+-- append (default true): the game's own source wins a name clash, matching
+-- how the portable cache root has always been mounted.  Pass false to
+-- prepend, so the mounted tree wins -- used to overlay the active version's
+-- cache on top of the root (Red) copy and the source.
+local function mountReadable(dir, append)
+  local fn = resolveMount()
+  if not fn then return false end
+  return fn(dir, append)
+end
+
+-- The portable game folder when the cache should live there, else nil.
+-- Resolved (and, for a fused build, mounted) once and cached.  Requires a
+-- desktop portable install (SaveData) and a working windowless mkdir.
+local portableRoot = nil
+local portableResolved = false
+local function resolvePortableRoot()
+  if portableResolved then return portableRoot end
+  portableResolved = true
+  portableRoot = nil
+  if not resolveMkdir() then return nil end
+  local base = require("src.core.SaveData").portableBaseDir()
+  if not base then return nil end
+  if love.filesystem.getSource and base == love.filesystem.getSource() then
+    -- source run: the folder is already the physfs source
+    portableRoot = base
+  elseif mountReadable(base) then
+    -- fused build: base is next to the executable; mount it so io.* writes
+    -- there are visible to love.filesystem/require/newImage
+    portableRoot = base
+  end
+  return portableRoot
+end
+
+function CacheFs.root()
+  return resolvePortableRoot()
+end
+
+local function realPath(root, rel)
+  return root .. SEP .. rel:gsub("/", SEP)
+end
+
+-- create every parent directory of `rel` under `root` (best effort; an
+-- already-existing directory is fine, a genuine failure surfaces when the
+-- subsequent io.open write fails)
+local function ensureParents(root, rel)
+  local mkdir = resolveMkdir()
+  if not mkdir then return end
+  local parts = {}
+  for part in rel:gmatch("[^/]+") do parts[#parts + 1] = part end
+  local cur = root
+  for i = 1, #parts - 1 do
+    cur = cur .. SEP .. parts[i]
+    mkdir(cur)
+  end
+end
+
+-- write cache-relative `rel` (forward-slash path) with the given bytes;
+-- returns ok, err like love.filesystem.write
+function CacheFs.write(rel, data)
+  rel = withPrefix(rel)
+  local root = CacheFs.root()
+  if root then
+    ensureParents(root, rel)
+    local f, err = io.open(realPath(root, rel), "wb")
+    if not f then return false, err end
+    f:write(data)
+    f:close()
+    return true
+  end
+  local parent = rel:match("^(.*)/[^/]+$")
+  if parent and not love.filesystem.createDirectory(parent) then
+    local info = love.filesystem.getInfo(parent)
+    local reason = info and ("a " .. info.type .. " already exists there")
+      or "unknown reason"
+    return false, "could not create " .. parent .. ": " .. reason
+  end
+  return love.filesystem.write(rel, data)
+end
+
+-- read cache-relative `rel`; returns the bytes or nil
+function CacheFs.read(rel)
+  rel = withPrefix(rel)
+  local root = CacheFs.root()
+  if root then
+    local f = io.open(realPath(root, rel), "rb")
+    if not f then return nil end
+    local data = f:read("*a")
+    f:close()
+    return data
+  end
+  return love.filesystem.read(rel)
+end
+
+-- does cache-relative `rel` exist as a file?
+function CacheFs.exists(rel)
+  rel = withPrefix(rel)
+  local root = CacheFs.root()
+  if root then
+    local f = io.open(realPath(root, rel), "rb")
+    if not f then return false end
+    f:close()
+    return true
+  end
+  return love.filesystem.getInfo(rel, "file") ~= nil
+end
+
+-- remove a single cache-relative file
+function CacheFs.remove(rel)
+  rel = withPrefix(rel)
+  local root = CacheFs.root()
+  if root then
+    os.remove(realPath(root, rel))
+    return
+  end
+  love.filesystem.remove(rel)
+end
+
+-- Remove the game-folder copy of a cache subtree before a fresh import, so a
+-- cache-format bump does not leave orphaned files behind.  No-op when the
+-- portable cache is inactive (the save-directory copy is cleared by
+-- RomImporter's own removeTree).  The tree is enumerated through
+-- love.filesystem (the game folder is mounted) and the real files deleted
+-- with os.remove; empty directories are harmless and left in place.
+function CacheFs.removeTree(rel)
+  rel = withPrefix(rel)
+  local root = CacheFs.root()
+  if not root then return end
+  local function walk(r)
+    local info = love.filesystem.getInfo(r)
+    if not info then return end
+    if info.type == "directory" then
+      for _, child in ipairs(love.filesystem.getDirectoryItems(r)) do
+        walk(r .. "/" .. child)
+      end
+    else
+      os.remove(realPath(root, r))
+    end
+  end
+  walk(rel)
+end
+
+-- Overlay the active version's extracted cache onto the un-prefixed read
+-- paths, so require("data.generated.*") and love.graphics.newImage(
+-- "assets/generated/*") resolve to that version's files.  Red lives at the
+-- cache root and needs nothing; Blue lives under blue/ and is *prepended* so
+-- it wins over any Red copy at the root and over the game source.  Called
+-- once at boot, before Game:load (main.lua).  Returns true when nothing was
+-- needed or the mount succeeded.
+function CacheFs.mountVersion(version)
+  local prefix = require("src.core.GameVersion").cachePrefix(version)
+  if prefix == "" then return true end            -- Red: already at the root
+  local sub = prefix:gsub("/+$", "")              -- "blue/" -> "blue"
+  -- The cache root is the portable game folder when active, else LÖVE's OS
+  -- save directory (where love.filesystem wrote blue/...).
+  local base = CacheFs.root()
+  if not base and love.filesystem.getSaveDirectory then
+    base = love.filesystem.getSaveDirectory()
+  end
+  if not base then return false end
+  if mountReadable(base .. SEP .. sub, false) then return true end
+  -- Fallback when FFI/PHYSFS_mount is unavailable: LÖVE can mount a folder
+  -- that lives in the save directory by name (prepended: appendToPath=false).
+  if love.filesystem.mount then
+    return love.filesystem.mount(sub, "", false)
+  end
+  return false
+end
+
+return CacheFs

src/import/ImageWriter.lua

@@ -126,14 +126,14 @@ function ImageWriter.columnsToRows(raw, tilesWide, tilesHigh, bytesPerTile)
 end
 
 function ImageWriter.save(image, path)
-  local parent = path:match("^(.*)/[^/]+$")
-  if parent then
-    local ok, err = love.filesystem.createDirectory(parent)
-    if not ok then error("could not create " .. parent .. ": " .. tostring(err)) end
-  end
   local ok, fileData = pcall(image.encode, image, "png")
   if not ok then error("could not encode " .. path .. ": " .. tostring(fileData)) end
-  local written, writeError = love.filesystem.write(path, fileData)
+  -- CacheFs routes this to the OS save directory (normal builds) or straight
+  -- into the game folder (portable installs), creating parent directories as
+  -- needed.  io.* needs the bytes as a string; love.filesystem would also
+  -- take the FileData, but getString() keeps one code path.
+  local CacheFs = require("src.import.CacheFs")
+  local written, writeError = CacheFs.write(path, fileData:getString())
   if not written then
     error("could not write " .. path .. ": " .. tostring(writeError))
   end

src/import/LuaWriter.lua

@@ -87,12 +87,11 @@ function LuaWriter.encode(value)
 end
 
 function LuaWriter.write(path, value)
-  local parent = path:match("^(.*)/[^/]+$")
-  if parent then
-    local ok, err = love.filesystem.createDirectory(parent)
-    if not ok then error("could not create " .. parent .. ": " .. tostring(err)) end
-  end
-  local ok, err = love.filesystem.write(path, LuaWriter.encode(value))
+  -- CacheFs routes this to the OS save directory (normal builds) or straight
+  -- into the game folder (portable installs); it also creates the parent
+  -- directories.  See src/import/CacheFs.lua.
+  local CacheFs = require("src.import.CacheFs")
+  local ok, err = CacheFs.write(path, LuaWriter.encode(value))
   if not ok then error("could not write " .. path .. ": " .. tostring(err)) end
 end
 

src/import/RomExtractor.lua

@@ -1253,14 +1253,24 @@ function RomExtractor:extractTrainers()
         "battle/trainers/" .. picture.imageBase .. ".png")
       written[picture.imageBase] = true
     end
+    local parties = self:trainerParties(
+      pointers.bank, partyStarts[index], partyEnds[index])
+    -- ChiefData is empty in the ROM (the Celadon Chief battle is unused/
+    -- cut content); tools/rom_manifest.json carries a hand-authored party
+    -- for the trainers this project reimplements, since no ROM data exists
+    -- to extract for them.
+    if #parties == 0 then
+      local override = self.manifest.trainerPartyOverrides
+        and self.manifest.trainerPartyOverrides[trainerId]
+      if override then parties = { copy(override) } end
+    end
     out[trainerId] = {
       id = trainerId, index = index, name = decodedNames[index],
       source = "ROM:TrainerDataPointers",
       pic = picture and picture.path or nil,
       baseMoney = math.floor(Rom.bcd(rawMoney) / 100),
       aiMods = aiMods[index],
-      parties = self:trainerParties(
-        pointers.bank, partyStarts[index], partyEnds[index]),
+      parties = parties,
     }
     self:tick("Trainers", index, #order)
   end
@@ -1426,7 +1436,7 @@ end
 
 function RomExtractor:extractField()
   self:beginStage("Interface artwork")
-  local done, total = 0, 48
+  local done, total = 0, 49
   local function tick()
     done = done + 1
     self:tick("Interface artwork", math.min(done, total), total)
@@ -1576,6 +1586,34 @@ function RomExtractor:extractField()
       "fx/" .. spec[4], { transparent = true })
     tick()
   end
+
+  -- The cuttable tree's own sprite: InitCutAnimOAM (engine/overworld/cut.asm)
+  -- copies Overworld_GFX tiles $2d-$2e (top half) and $3d-$3e (bottom half)
+  -- into the OAM tiles the Cut animation slides apart, so this comes out of
+  -- the OVERWORLD tileset's own graphics blob rather than a named symbol.
+  do
+    local overworldIndex
+    for i, name in ipairs(self.manifest.constants.tilesetOrder) do
+      if name == "OVERWORLD" then overworldIndex = i break end
+    end
+    assert(overworldIndex, "OVERWORLD tileset not found in tilesetOrder")
+    local tilesetHeaders = self:symbol("Tilesets")
+    local rowAddress = tilesetHeaders.address + (overworldIndex - 1) * 12
+    local gfxBank = self.rom:byte(tilesetHeaders.bank, rowAddress)
+    local gfxPointer = self.rom:word(tilesetHeaders.bank, rowAddress + 3)
+    local cutTree = ImageWriter.blank(16, 16, 1, 1, 1, 0)
+    for _, spec in ipairs({
+      { 0x2d, 0, 0 }, { 0x2e, 8, 0 }, { 0x3d, 0, 8 }, { 0x3e, 8, 8 },
+    }) do
+      local tileIndex, dx, dy = spec[1], spec[2], spec[3]
+      local tile = ImageWriter.decode2bpp(
+        self.rom:bytes(gfxBank, gfxPointer + tileIndex * 16, 16),
+        8, 8, true)
+      ImageWriter.blit(cutTree, tile, dx, dy)
+    end
+    self:save(cutTree, "fx/cut_tree.png"); tick()
+  end
+
   self:raw2bpp("BattleTransitionTile", 8, 8,
     "fx/battle_transition.png"); tick()
   self:raw2bpp("PokedexTileGraphics", 24, 48,
@@ -1631,10 +1669,11 @@ function RomExtractor:extractAudio()
     chunks[index] = self.rom.data:sub(first, first + 0x3FFF)
     self:tick("Sound programs", index, #bankOrder + 2)
   end
-  local ok, writeError = love.filesystem.createDirectory(
-    "assets/generated/audio")
-  if ok == false then error("could not create audio cache: " .. tostring(writeError)) end
-  ok, writeError = love.filesystem.write(
+  -- CacheFs (not love.filesystem directly) so a portable install lands this
+  -- in the game folder with the rest of the cache; it creates the parent
+  -- directory too.
+  local CacheFs = require("src.import.CacheFs")
+  local ok, writeError = CacheFs.write(
     "assets/generated/audio/programs.bin", table.concat(chunks))
   if not ok then error("could not write audio programs: " .. tostring(writeError)) end
 

src/inventory/Bag.lua

@@ -11,6 +11,10 @@ local function isBadge(id)
   return id:find("BADGE", 1, true) ~= nil
 end
 
+-- exported so item lists that share save.inventory (e.g. the PC deposit
+-- menu) can exclude badges the same way the bag does
+Bag.isBadge = isBadge
+
 function Bag.slots(save)
   local n = 0
   for id in pairs(save.inventory) do

src/mods/Loader.lua

@@ -129,7 +129,9 @@ end
 -- tripwire on for tests that cannot set the environment.
 function Loader.new(opts)
   local dev = opts and opts.dev
-  if dev == nil then dev = os.getenv("POKEPORT_DEV") == "1" end
+  if dev == nil then
+    dev = os.getenv("POKEPORT_DEV") == "1" or _G.POKEPORT_DEV_MODE == true
+  end
   local self = setmetatable({
     mods = {}, loaded = {}, errors = {}, initialized = false,
     events = Events.new(), hooks = Hooks.new(), content = {}, assets = {},

src/pokemon/Evolution.lua

@@ -9,6 +9,7 @@
 -- "trade" | "manual" | <mod>, item = id?, ... }), wrapped by the
 -- evolution.check hook so a mod can cancel or force any evolution.
 
+local Music = require("src.core.Music")
 local Runtime = require("src.mods.Runtime")
 local Screens = require("src.ui.Screens")
 local Stats = require("src.pokemon.Stats")
@@ -112,11 +113,15 @@ function Evolution.evolve(game, mon, newSpecies, onDone, via)
     Screens.push(game, "EvolutionState", mon, newSpecies, onDone)
     return
   end
+  Music.play(game.data, Music.special(game.data, "evolution"))
   local oldName = mon.nickname or game.data.pokemon[mon.species].name
   Evolution.apply(game, mon, newSpecies, via)
   local msg = ("What?\n%s is\nevolving!\fCongratulations!\nYour %s\nevolved into\n%s!")
               :format(oldName, oldName, game.data.pokemon[newSpecies].name)
-  game.stack:push(TextBox.new(game, msg, onDone))
+  game.stack:push(TextBox.new(game, msg, function()
+    Music.restoreMap(game.data)
+    if onDone then onDone() end
+  end))
 end
 
 -- Entry point for mods whose methods fire outside the vanilla moments

src/pokemon/Pokemon.lua

@@ -9,12 +9,18 @@ local Pokemon = {}
 -- keeping the most recent four (engine/pokemon/learn_move.asm behavior).
 function Pokemon.movesAtLevel(speciesDef, level)
   local moves = {}
+  local function add(id)
+    for _, existing in ipairs(moves) do
+      if existing == id then return end
+    end
+    table.insert(moves, id)
+  end
   for _, m in ipairs(speciesDef.level1Moves) do
-    table.insert(moves, m)
+    add(m)
   end
   for _, entry in ipairs(speciesDef.learnset) do
     if entry.level <= level then
-      table.insert(moves, entry.move)
+      add(entry.move)
     end
   end
   while #moves > 4 do

src/render/HudTiles.lua

@@ -86,10 +86,11 @@ function HudTiles.drawHPBar(data, tx, ty, mon, barType)
     px = math.max(1, math.floor(mon.hp * 48 / mon.stats.hp))
   end
   local tint
-  local pals = data.palettes
-  if pals then
-    local name = px >= 27 and "GREENBAR" or px >= 10 and "YELLOWBAR" or "REDBAR"
-    local c = pals.palettes[name][3] -- GB color 2 is the fill shade
+  local PaletteFX = require("src.render.PaletteFX")
+  local name = px >= 27 and "GREENBAR" or px >= 10 and "YELLOWBAR" or "REDBAR"
+  local colors = PaletteFX.pal(data, name)
+  if colors then
+    local c = colors[3] -- GB color 2 is the fill shade
     -- the fill pixels are the 2/3-gray shade; divide so they land on
     -- the palette color exactly (the black outline stays black)
     tint = { math.min(1, c[1] / 170), math.min(1, c[2] / 170),

src/render/PaletteFX.lua

@@ -5,18 +5,28 @@
 -- then drawn once per zone through a shader that remaps the four DMG
 -- shades to that zone's palette.
 --
--- Port display option: COLORS (GBC / OG / OG INV / GBC INV / CLASSIC)
+-- Port display option: COLORS (GBC / RED++ / OG / OG INV / GBC INV / CLASSIC)
 -- transforms every zone's palette at send time via effectiveColors.
+-- RED++ swaps the named-palette pack for pokered-gbc SuperPalettes
+-- (data/palettes_gbc.lua), including per-species mon colors.
+
+local GameVersion = require("src.core.GameVersion")
 
 local PaletteFX = {}
 
 local shader -- false = unavailable (headless / no shader support)
+local gbcPack -- false = missing; nil = not loaded yet
 
--- Cycle order matches OptionsMenu / hotkey 2
-PaletteFX.MODES = { "gbc", "og", "og_inv", "gbc_inv", "classic" }
+-- Cycle order matches OptionsMenu / hotkey 2.  The three real colorizations
+-- come first (OG RED = GBC hardware, SGB = per-map Super Game Boy, RED++ =
+-- pokered-gbc per-tile), then the DMG-shade novelty modes.
+PaletteFX.MODES = { "ogred", "gbc", "redpp", "og", "og_inv", "gbc_inv", "classic" }
+-- `gbc`/`gbc_inv` keep their save-value ids for back-compat; their LABELS are
+-- "SGB"/"SGB INV" because that is what the mode actually is (the old "GBC"
+-- label was a misnomer -- it never was the real Game Boy Color palette).
 PaletteFX.MODE_LABELS = {
-  gbc = "GBC", og = "OG", og_inv = "OG INV",
-  gbc_inv = "GBC INV", classic = "CLASSIC",
+  ogred = "OG RED", gbc = "SGB", redpp = "RED++", og = "OG",
+  og_inv = "OG INV", gbc_inv = "SGB INV", classic = "CLASSIC",
 }
 PaletteFX.mode = "gbc"
 
@@ -25,6 +35,40 @@ PaletteFX.CLASSIC = {
   { 155, 188, 15 }, { 139, 172, 15 }, { 48, 98, 48 }, { 15, 56, 15 },
 }
 
+-- OG RED: the Game Boy Color boot-ROM auto-palette for Pokemon Red.  Pokemon
+-- Red ships no CGB code (pokered's wOnCGB is hardwired 0), so on a Game Boy
+-- Color the boot ROM colorizes it with ONE global palette pair -- a red
+-- background and green objects -- applied to the whole game with no per-map
+-- variation (that variety was the Super Game Boy's doing, i.e. SGB mode).
+-- Lightest shade first, matching the SGB palette tables.  Values verified
+-- against hardware captures of Pallet Town and Oak's Lab.
+PaletteFX.GBC_BG = {
+  { 255, 255, 255 }, { 255, 132, 132 }, { 148, 58, 58 }, { 0, 0, 0 },
+}
+PaletteFX.GBC_OBJ = {
+  { 255, 255, 255 }, { 123, 255, 49 }, { 0, 132, 0 }, { 0, 0, 0 },
+}
+
+-- OG BLUE: Pokemon Blue's Game Boy Color boot-ROM auto-palette.  Same
+-- one-global-pair scheme as OG RED (Blue also ships no CGB code), but the
+-- boot ROM colorizes the background blue instead of red -- so "OG RED" for a
+-- Blue playthrough is white -> light blue -> dark blue -> black, mirroring
+-- GBC_BG channel-for-channel so the blue reads at the same brightness.  The
+-- OBJ (sprite) palette stays the same green, matching how Red and Blue share
+-- the green-character look on a Game Boy Color.
+PaletteFX.GBC_BG_BLUE = {
+  { 255, 255, 255 }, { 132, 132, 255 }, { 58, 58, 148 }, { 0, 0, 0 },
+}
+
+-- The active game's OG boot-ROM background palette: blue for a Blue
+-- playthrough, red otherwise.  White (index 1) and black (index 4) are
+-- identical across versions, so callers that only touch the endpoints
+-- (e.g. BattleState's zone white/black snap) need no version branch.
+function PaletteFX.ogBg()
+  if GameVersion.isBlue() then return PaletteFX.GBC_BG_BLUE end
+  return PaletteFX.GBC_BG
+end
+
 local INV_MAP = { [0] = 3, [1] = 2, [2] = 1, [3] = 0 }
 
 function PaletteFX.shader()
@@ -124,22 +168,271 @@ function PaletteFX.whole(colors)
   return PaletteFX.zone(colors, 0, 0, 19, 17)
 end
 
--- named palette from data/generated/palettes.lua (nil on stale builds)
+-- Red++ / pokered-gbc SuperPalette pack (committed; optional if absent).
+function PaletteFX.gbcPack()
+  if gbcPack == nil then
+    local ok, pack = pcall(require, "data.palettes_gbc")
+    gbcPack = ok and pack or false
+  end
+  return gbcPack or nil
+end
+
+function PaletteFX.usesGbcPack(mode)
+  mode = mode or PaletteFX.mode
+  return mode == "redpp"
+end
+
+-- Whether the active mode bakes a per-OBJ palette onto overworld sprites
+-- (the OBP bake + post-zone redraw path).  ONLY OG RED does: it wears the
+-- GBC boot-ROM green object palette (PaletteFX.GBC_OBJ) so the player and
+-- NPCs stay green over the red background, exactly like Pokemon Red on a
+-- Game Boy Color.  SGB mode deliberately does NOT: an SGB OBJ carries no
+-- palette of its own, so the characters tint with the whole-map region
+-- palette along with the terrain (the Super Game Boy never colored Pokemon
+-- Red's sprites separately -- baking a per-sprite palette there was the
+-- "reds coloring on the player/NPCs" bug).  RED++ colors sprites through
+-- the usesGbcPack() path in SpriteRenderer instead.
+function PaletteFX.usesSpriteObp(mode)
+  return (mode or PaletteFX.mode) == "ogred"
+end
+
+-- ------- post-zone sprite redraw (GBC mode)
+--
+-- In GBC mode the world canvas still runs through the per-map zone
+-- shade-remap shader, which would corrupt an OBP-baked sprite's true-color
+-- pixels.  So SpriteRenderer draws the baked sprite into the canvas (its
+-- pixels come out zone-tinted there) AND records the draw here;
+-- Renderer:endFrame replays the list on top of the finished zone pass,
+-- scaled into screen space -- the GBC's OBJ-over-BG compositing, one draw
+-- late.  Entries carrying `colors` are re-colorized draws (the tall-grass
+-- feet overdraw, which must keep hiding sprite feet) issued through the
+-- color-0-keyed shade-remap shader.  World pass only; cleared per frame.
+local spriteRedraws = {}
+
+function PaletteFX.clearSpriteRedraws()
+  for i = #spriteRedraws, 1, -1 do spriteRedraws[i] = nil end
+end
+
+function PaletteFX.markSpriteRedraw(image, quad, x, y, sx, colors, keyed)
+  if currentPass ~= "world" then return end
+  spriteRedraws[#spriteRedraws + 1] =
+    { image = image, quad = quad, x = x, y = y, sx = sx or 1,
+      colors = colors, keyed = keyed }
+end
+
+-- whether a draw issued right now would land in the redraw list -- the
+-- OBP bake is only correct when the replay can restore it after the zone
+-- pass (tilt's upright pass colorizes per-billboard instead, so sprites
+-- there keep the raw sheet)
+function PaletteFX.spriteRedrawPassActive()
+  return currentPass == "world"
+end
+
+function PaletteFX.spriteRedraws()
+  return spriteRedraws
+end
+
+-- Active named-palette table for COLORS: RED++ uses data/palettes_gbc.lua,
+-- everything else uses the ROM-imported data.palettes.
+function PaletteFX.pack(data)
+  if PaletteFX.usesGbcPack() then
+    local g = PaletteFX.gbcPack()
+    if g then return g end
+  end
+  return data and data.palettes or nil
+end
+
+-- named palette from the active pack (nil on stale builds / missing name).
+-- RED++ falls back to the ROM pack for names the gbc table omits (rare).
+-- OG RED short-circuits EVERY name to the one global GBC boot-ROM BG palette
+-- (the hardware had a single BGP for the whole game), so terrain zones,
+-- battle HP bars / text, and menu boxes all come out red -- everything a
+-- background tile drew.  Objects do not come through here (they bake
+-- GBC_OBJ green), so this stays a BG-only hook.
 function PaletteFX.pal(data, name)
-  local p = data.palettes
-  return p and p.palettes[name] or nil
+  if PaletteFX.mode == "ogred" then return PaletteFX.ogBg() end
+  local p = PaletteFX.pack(data)
+  local c = p and p.palettes[name]
+  if c then return c end
+  if PaletteFX.usesGbcPack() and data and data.palettes then
+    return data.palettes.palettes[name]
+  end
+  return nil
 end
 
 -- the species' palette (data/pokemon/palettes.asm), MEWMON for unknowns.
 -- transformed forces PAL_GRAYMON (Ditto's palette) regardless of species
 -- (engine/gfx/palettes.asm DeterminePaletteID: bit TRANSFORMED, a; a
 -- Transformed mon's pic is tinted gray, not the copied species' own
--- SGB color).
+-- SGB color).  RED++ uses per-species pals from mon_palettes.asm.
 function PaletteFX.monPal(data, species, transformed)
-  local p = data.palettes
+  -- OG RED: a battle mon pic is a BG tile on the Game Boy Color (drawn into
+  -- the tilemap, colored by BGP), so it wears the global red BG palette, not
+  -- a per-species one -- matching the hardware capture where both mons are
+  -- red/pink on the white field.
+  if PaletteFX.mode == "ogred" then return PaletteFX.ogBg() end
+  local p = PaletteFX.pack(data)
   if not p then return nil end
-  if transformed then return p.palettes.GRAYMON end
-  return p.palettes[p.pokemon[species] or "MEWMON"]
+  if transformed then
+    return p.palettes.GRAYMON
+        or (data and data.palettes and data.palettes.palettes.GRAYMON)
+  end
+  local name = p.pokemon[species] or "MEWMON"
+  local c = p.palettes[name]
+  if c then return c end
+  if PaletteFX.usesGbcPack() and data and data.palettes then
+    name = data.palettes.pokemon[species] or "MEWMON"
+    return data.palettes.palettes[name]
+  end
+  return nil
+end
+
+-- palette name a species currently resolves to (for image-cache keys)
+function PaletteFX.monPalName(data, species, transformed)
+  if transformed then return "GRAYMON" end
+  local p = PaletteFX.pack(data)
+  if p and p.pokemon[species] then return p.pokemon[species] end
+  if data and data.palettes and data.palettes.pokemon[species] then
+    return data.palettes.pokemon[species]
+  end
+  return "MEWMON"
+end
+
+-- ------- true GBC overworld coloring (color/loadpalettes.asm,
+-- color/data/*, color/sprites.asm ColorOverworldSprite) -------------------
+--
+-- RED++ pairs its named-palette battle/mon colors above with pokered-gbc's
+-- real per-tile system: LoadTilesetPalette assigns one of 8 four-color BG
+-- palettes to every tile GRAPHIC in a tileset (by tile id, not by map
+-- position), and LoadTownPalette swaps just the ROOF slot (index 6) per
+-- town/route. `data/palettes_gbc.lua`'s `world` table holds the extracted
+-- data (tools/extract/palettes.py extract_gbc_world); these queries are
+-- mode-independent (only check the pack exists) so TileRenderer can
+-- precompute geometry once regardless of the active COLORS mode -- callers
+-- that resolve to actual on-screen COLOR should gate on usesGbcPack()
+-- themselves, the same way they already gate other RED++-only behavior.
+--
+-- LoadTilesetPalette's 3 hardcoded single-tile fixes (Celadon Mart) and
+-- LoadTownPalette's Route 6/Saffron y<2 roof split are control flow, not
+-- data, so they are not in the extracted pack -- they live here instead.
+local TILE_GROUP_EXCEPTIONS = {
+  -- tile ids $4b-$4f -> BLUE (outside sky, seen through the mart's roof)
+  CELADON_MART_ROOF = { tiles = { [0x4b] = true, [0x4c] = true, [0x4d] = true,
+                                  [0x4e] = true, [0x4f] = true }, group = 3 },
+  -- tile $37 -> BROWN (counter miscoloration fix)
+  CELADON_MART_3F   = { tiles = { [0x37] = true }, group = 5 },
+  -- tiles $07/$08/$17/$18 -> YELLOW (bench, blue by default)
+  CELADON_MART_1F   = { tiles = { [0x07] = true, [0x08] = true,
+                                  [0x17] = true, [0x18] = true }, group = 4 },
+}
+
+-- keyed by tileset id (applies on every map that uses it), consulted after
+-- the per-map table above
+local TILESET_GROUP_EXCEPTIONS = {
+  -- tile $22 (the hollow-square grave marker) -> GRAY: the extracted pack
+  -- files it under the bright blue family, which makes a purely
+  -- decorative floor marker read as an interactive pad
+  CEMETERY = { tiles = { [0x22] = true }, group = 0 },
+}
+
+-- pokered-gbc's lobby.bst repoints the Celadon roof table's flat top
+-- (block 29, cells 5/6/9/10) at a duplicate tile ($5a, BROWN) so the
+-- tabletop and the checkerboard floor -- both raw tile $37 -- can take
+-- different palettes; the vanilla-derived blockset shares the one tile
+-- id, so the RED++ atlas path re-creates the duplicate: the alias slot
+-- is baked as a copy of `tile` in `group`'s colors, and the listed
+-- 0-based block cells draw the alias instead of the shared tile.
+PaletteFX.TILE_ALIASES = {
+  CELADON_MART_ROOF = {
+    { block = 29, cells = { [5] = true, [6] = true, [9] = true, [10] = true },
+      tile = 0x37, alias = 0x5a, group = 5 },
+  },
+}
+local ROOF_GROUP = 6
+local ROUTE_6_SAFFRON = { mapId = "ROUTE_6", useMapId = "SAFFRON_CITY", cellYBelow = 2 }
+
+-- whether the extracted pack has real per-tile GBC data for this tileset
+-- (false for a mod tileset with no pokered-gbc counterpart, or when the
+-- pack failed to load at all)
+function PaletteFX.hasWorldTileset(tileset)
+  local pack = PaletteFX.gbcPack()
+  local w = pack and pack.world
+  return (w and w.tileGroups[tileset]) ~= nil
+end
+
+-- the palette-group (0-7) a tile GRAPHIC id resolves to in this tileset,
+-- with the current map's tile-id exceptions (if any) applied first
+function PaletteFX.worldGroupAt(tileset, mapId, tileId)
+  local pack = PaletteFX.gbcPack()
+  local w = pack and pack.world
+  local groups = w and w.tileGroups[tileset]
+  if not groups then return nil end
+  local exc = TILE_GROUP_EXCEPTIONS[mapId]
+  if exc and exc.tiles[tileId] then return exc.group end
+  exc = TILESET_GROUP_EXCEPTIONS[tileset]
+  if exc and exc.tiles[tileId] then return exc.group end
+  return groups[tileId] or 7 -- TEXT: tile ids past the tileset's 96 (menus)
+end
+
+-- this tileset's resolved 8-entry {r,g,b}x4 palette array, with the ROOF
+-- slot swapped to the current town/route (Route 6's north end uses
+-- Saffron's roof colors while the player stands in its top 2 cell rows,
+-- like pokered's wYCoord check -- data is Game.data, for the map lookup)
+function PaletteFX.worldGroupColors(data, tileset, mapId, playerCellY)
+  local pack = PaletteFX.gbcPack()
+  local w = pack and pack.world
+  local base = w and w.groupColors[tileset]
+  if not base then return nil end
+  if not w.roofGroup[tileset] then return base end
+  local roofMapId = mapId
+  if mapId == ROUTE_6_SAFFRON.mapId and playerCellY
+     and playerCellY < ROUTE_6_SAFFRON.cellYBelow then
+    roofMapId = ROUTE_6_SAFFRON.useMapId
+  end
+  local roofMap = data and data.maps and data.maps[roofMapId]
+  local roof = roofMap and w.roofByMapIndex[roofMap.index]
+  if not roof then return base end
+  local out = {}
+  for i = 1, 8 do out[i] = base[i] end
+  -- LoadTownPalette only overwrites W2_BgPaletteData + $32, i.e. colors 1
+  -- and 2 (0-indexed) of the 4-color ROOF slot -- color 0 (background,
+  -- typically the sky-through-gaps white) and color 3 (outline black) keep
+  -- the tileset's own OUTDOOR_ROOF/INDOOR_ROOF base, only the roof
+  -- material's 2 middle shades are town-specific
+  local base4 = base[ROOF_GROUP + 1]
+  out[ROOF_GROUP + 1] = { base4[1], roof[1], roof[2], base4[4] }
+  return out
+end
+
+-- an overworld sprite's resolved 4-color OBJ palette (ColorOverworldSprite),
+-- or nil when unassigned/unavailable, plus the resolved group index (for
+-- callers that want a stable cache key without hashing the colors table).
+-- spriteDef carries the ROM picture-id crosswalk in its `source` field
+-- ("ROM:SpriteSheetPointerTable[N]"); seed (any stable per-instance value,
+-- e.g. an NPC's `id`) resolves the "random" sentinel -- a deliberate
+-- approximation of ColorOverworldSprite's per-OAM-slot pseudo-random pick
+-- (`swap a; and 3` on the sprite's OAM offset, which has no equivalent
+-- here): a stable hash instead, so the same NPC instance always shows the
+-- same one of the 4 SPR_PAL_* colors.
+function PaletteFX.spriteObp(spriteDef, seed)
+  local pack = PaletteFX.gbcPack()
+  local w = pack and pack.world
+  local src = spriteDef and spriteDef.source
+  if not (w and src) then return nil end
+  local idx = tonumber(src:match("%[(%d+)%]"))
+  -- RedBikeSprite loads outside SpriteSheetPointerTable
+  -- (LoadBikePlayerSpriteGraphics), so its source carries no bracketed
+  -- index; it wears the player's own palette, same as SPRITE_RED
+  if not idx and src:find("RedBikeSprite", 1, true) then idx = 0 end
+  local group = idx and w.spriteAssignment[idx]
+  if group == nil then return nil end
+  if group == "random" then
+    local h = 0
+    seed = tostring(seed or "")
+    for i = 1, #seed do h = (h * 31 + seed:byte(i)) % 4294967296 end
+    group = h % 4
+  end
+  return w.spritePalettes[group], group
 end
 
 -- GetHealthBarColor (home/palettes.asm) on the standard 48px bar
@@ -173,13 +466,35 @@ function PaletteFX.permute(colors, map)
 end
 
 function PaletteFX.setMode(mode)
+  local prev = PaletteFX.mode
+  local ok = false
   for _, m in ipairs(PaletteFX.MODES) do
     if m == mode then
       PaletteFX.mode = mode
-      return
+      ok = true
+      break
     end
   end
-  PaletteFX.mode = "gbc"
+  if not ok then PaletteFX.mode = "gbc" end
+  -- battle pics and overworld sprites bake the active pack into ImageData;
+  -- drop those caches when the pack (or any COLORS mode) changes so the
+  -- next draw re-tints
+  if prev ~= PaletteFX.mode then
+    pcall(function() require("src.battle.BattleState").invalidate() end)
+    pcall(function() require("src.render.SpriteRenderer").invalidate() end)
+    -- RED++'s baked tileset atlas (TileRenderer.getGbcAtlas) is built once
+    -- per loaded map, so a mode toggle needs every cached Map/TileRenderer
+    -- dropped and the currently-visible one rebuilt in place -- otherwise
+    -- the on-screen map keeps its stale (wrong-mode) atlas until the next
+    -- map transition happens to reload it.
+    pcall(function()
+      require("src.world.MapLoader").invalidateAll()
+      local Game = require("src.core.Game")
+      if Game.overworld and Game.overworld.map and Game.overworld.reloadMap then
+        Game.overworld:reloadMap(Game.overworld.map.id, "colors")
+      end
+    end)
+  end
 end
 
 function PaletteFX.cycleMode()
@@ -188,7 +503,7 @@ function PaletteFX.cycleMode()
   for i, m in ipairs(PaletteFX.MODES) do
     if m == cur then idx = i; break end
   end
-  PaletteFX.mode = PaletteFX.MODES[idx % #PaletteFX.MODES + 1]
+  PaletteFX.setMode(PaletteFX.MODES[idx % #PaletteFX.MODES + 1])
   return PaletteFX.mode
 end
 
@@ -197,12 +512,16 @@ function PaletteFX.applyOptions(opts)
 end
 
 function PaletteFX.modeLabel(mode)
-  return PaletteFX.MODE_LABELS[mode or PaletteFX.mode] or "GBC"
+  mode = mode or PaletteFX.mode
+  -- The GBC boot-ROM mode wears the running game's name: it is red for Red and
+  -- blue for Blue (see ogBg), so a Blue playthrough shows "OG BLUE".
+  if mode == "ogred" and GameVersion.isBlue() then return "OG BLUE" end
+  return PaletteFX.MODE_LABELS[mode] or "GBC"
 end
 
 -- When a state exposes no SGB zones but COLORS needs a forced palette
 -- (OG / OG INV / CLASSIC), invent a whole-screen zone so the shade-remap
--- shader still runs.  GBC / GBC INV leave nil alone (raw DMG canvas).
+-- shader still runs.  GBC / RED++ / GBC INV leave nil alone (raw DMG canvas).
 function PaletteFX.ensureZones(zones)
   if zones and zones[1] then return zones end
   local mode = PaletteFX.mode or "gbc"
@@ -213,6 +532,8 @@ function PaletteFX.ensureZones(zones)
 end
 
 -- Transform a 4-color palette for the active COLORS display mode.
+-- GBC and RED++ pass the zone colors through (RED++ already swapped the
+-- pack in pal/monPal); OG* / CLASSIC replace; GBC INV permutes shades.
 function PaletteFX.effectiveColors(c)
   if not c then return nil end
   local mode = PaletteFX.mode or "gbc"

src/render/Renderer.lua

@@ -62,8 +62,10 @@ end
 function Renderer:beginFrame(transparent)
   self.worldActive = false
   self.uprightActive = false
-  -- last frame's trueColor rects go before anything draws this one
+  -- last frame's trueColor rects and sprite redraws go before anything
+  -- draws this one
   PaletteFX.clearTrueColor()
+  PaletteFX.clearSpriteRedraws()
   PaletteFX.setPass("ui")
   love.graphics.setCanvas(self.canvas)
   if transparent then
@@ -77,6 +79,10 @@ function Renderer:beginWorldPass()
   local vw, vh = self:worldViewSize()
   if not self.worldCanvas or self.worldCanvas:getWidth() ~= vw
      or self.worldCanvas:getHeight() ~= vh then
+    -- free the old canvas before replacing it: a zoom/tilt tween changes
+    -- the view size every frame, so without this the superseded canvases
+    -- pile up in VRAM until a GC finalizer happens to run
+    if self.worldCanvas and self.worldCanvas.release then self.worldCanvas:release() end
     self.worldCanvas = love.graphics.newCanvas(vw, vh)
     self.worldCanvas:setFilter("nearest", "nearest")
   end
@@ -105,6 +111,7 @@ function Renderer:beginUprightPass()
   local cw, ch = vw + 2 * M, vh + 2 * M
   if not self.uprightCanvas or self.uprightCanvas:getWidth() ~= cw
      or self.uprightCanvas:getHeight() ~= ch then
+    if self.uprightCanvas and self.uprightCanvas.release then self.uprightCanvas:release() end
     self.uprightCanvas = love.graphics.newCanvas(cw, ch)
     self.uprightCanvas:setFilter("nearest", "nearest")
   end
@@ -198,6 +205,7 @@ function Renderer:drawTiltedWorld(zoneList, s, wox, woy, target)
   -- 2x for extra crispness.
   if not self.tiltCanvas or self.tiltCanvas:getWidth() ~= wvw
      or self.tiltCanvas:getHeight() ~= wvh then
+    if self.tiltCanvas and self.tiltCanvas.release then self.tiltCanvas:release() end
     self.tiltCanvas = love.graphics.newCanvas(wvw, wvh)
     self.tiltCanvas:setFilter("linear", "linear")
   end
@@ -363,6 +371,35 @@ function Renderer:endFrame(zones, worldZones)
       else
         blit(self.worldCanvas, s, zones, S, wox, woy, 0, 0, ww, wh)
       end
+      -- OBP-baked overworld sprites replay on top of the zone pass (GBC
+      -- mode per-object coloring; see PaletteFX.markSpriteRedraw).  Grass
+      -- feet-overdraw entries carry `colors` and re-colorize through the
+      -- color-0-keyed shade-remap shader so they keep hiding sprite feet.
+      local redraws = PaletteFX.spriteRedraws()
+      if redraws[1] then
+        love.graphics.setColor(1, 1, 1, 1)
+        love.graphics.setScissor(0, 0, ww, wh)
+        local activeShader = nil
+        for _, r in ipairs(redraws) do
+          local wanted = r.colors
+            and (r.keyed and PaletteFX.keyedShader() or PaletteFX.shader())
+            or nil
+          if wanted ~= activeShader then
+            activeShader = wanted
+            love.graphics.setShader(wanted)
+          end
+          if wanted then PaletteFX.sendColors(wanted, r.colors) end
+          if r.quad then
+            love.graphics.draw(r.image, r.quad, wox + r.x * s, woy + r.y * s,
+                               0, s * r.sx, s)
+          else
+            love.graphics.draw(r.image, wox + r.x * s, woy + r.y * s,
+                               0, s * r.sx, s)
+          end
+        end
+        if activeShader then love.graphics.setShader() end
+        love.graphics.setScissor()
+      end
     end
     -- Composite the tilt upright pass over the ground (projected or, in the
     -- rare no-shader fallback, flat).  It already carries its billboards'

src/render/SpriteRenderer.lua

@@ -18,10 +18,49 @@ local function getImage(path)
   return imageCache[path]
 end
 
+-- RED++ overworld sprite OBJ-palette recolor (color/sprites.asm
+-- ColorOverworldSprite), baked into an ImageData like BattleState's mon-pic
+-- palette bake (src/battle/BattleState.lua getImage): CPU-remap the 4 DMG
+-- shades to the resolved OBP colors, cached per (image path, group).
+--
+-- Sprite sheets carry no real alpha (every pixel, including the
+-- background, is opaque -- confirmed by sampling the extracted PNGs): the
+-- "transparent" look in every other draw path is a coincidence of the
+-- whole-canvas shade-remap shader, where shade 0 (white) happens to map to
+-- a similarly light color in whatever terrain zone the sprite stands over.
+-- That coincidence breaks once terrain is colored per-tile instead of one
+-- flat color per map (different tiles can have very different color-0s),
+-- so shade 0 is keyed to alpha 0 here explicitly -- matching real GBC OBJ
+-- hardware, where sprite palette index 0 is unconditionally transparent
+-- (same rule TileRenderer's getColor0KeyShader documents for tall grass).
+local obpCache = {}
+
+local function getObpImage(path, colors, group)
+  local key = path .. "#obp" .. group
+  if not obpCache[key] then
+    local img
+    if love.image and love.image.newImageData then
+      local id = Assets.imageData(path)
+      id:mapPixel(function(_, _, r, g, b, a)
+        if a == 0 then return r, g, b, a end
+        if r > 0.83 then return r, g, b, 0 end -- OBJ color 0: always transparent
+        local col = r > 0.5 and colors[2] or r > 0.17 and colors[3] or colors[4]
+        return col[1] / 255, col[2] / 255, col[3] / 255, a
+      end)
+      img = love.graphics.newImage(id)
+    else
+      img = getImage(path) -- headless stub: no pixel access
+    end
+    obpCache[key] = img
+  end
+  return obpCache[key]
+end
+
 -- hot reload drops the sheets; live instances hold their own image, so
 -- the world rebuilds them (MapLoader.invalidateAll) rather than this
 function SpriteRenderer.invalidate()
   imageCache = {}
+  obpCache = {}
 end
 
 Assets.register(SpriteRenderer.invalidate)
@@ -29,9 +68,12 @@ Assets.register(SpriteRenderer.invalidate)
 local STAND = { down = 0, up = 1, left = 2, right = 2 }
 local WALK = { down = 3, up = 4, left = 5, right = 5 }
 
-function SpriteRenderer.new(spriteDef)
+-- seed: any stable per-instance value (e.g. an NPC's `id`) used to resolve
+-- RED++'s per-instance "random" OBP sentinel (PaletteFX.spriteObp)
+function SpriteRenderer.new(spriteDef, seed)
   local self = setmetatable({}, SpriteRenderer)
   self.def = spriteDef
+  self.seed = seed
   self.image = getImage(spriteDef.image)
   local iw, ih = self.image:getDimensions()
   self.frames = {}
@@ -43,16 +85,47 @@ end
 
 -- facing: down/up/left/right; walkPhase: 0 stand, 1 walk; flip: alternate
 -- steps mirror the walk frame for up/down (GB uses OAM flip for this).
+local function blitFrame(image, quad, x, y, flip, redraw)
+  if flip then
+    love.graphics.draw(image, quad, x + 16, y, 0, -1, 1)
+    if redraw then PaletteFX.markSpriteRedraw(image, quad, x + 16, y, -1) end
+  else
+    love.graphics.draw(image, quad, x, y)
+    if redraw then PaletteFX.markSpriteRedraw(image, quad, x, y, 1) end
+  end
+end
+
 function SpriteRenderer:draw(px, py, camX, camY, facing, walkPhase, stepFlip)
   local x = math.floor(px - camX)
   local y = math.floor(py - camY) - 4
+  local image = self.image
+  local redraw = false
   -- full-color art claims its 16x16 cell out of the shade-remap pass
-  if self.def.trueColor then PaletteFX.markTrueColor(x, y, 16, 16) end
+  if self.def.trueColor then
+    PaletteFX.markTrueColor(x, y, 16, 16)
+  elseif PaletteFX.usesGbcPack() then
+    -- RED++: the world canvas is already true-color (TileRenderer bakes
+    -- terrain, this bakes the sprite) and the world pass runs unshaded
+    -- (OverworldState.sgbWorldZones), so this draws like any normal sprite
+    -- -- opaque character pixels over a real-alpha-transparent background,
+    -- no trueColor rect needed (there is no shader left to exempt it from).
+    local colors, group = PaletteFX.spriteObp(self.def, self.seed)
+    if colors then
+      image = getObpImage(self.def.image, colors, group)
+    end
+  elseif PaletteFX.usesSpriteObp() and PaletteFX.spriteRedrawPassActive() then
+    -- OG RED (GBC boot-ROM look): every OBJ wears the one global green
+    -- object palette.  The red BG zone shader still runs over the world
+    -- canvas, so the baked sprite is queued for a post-zone redraw
+    -- (PaletteFX.markSpriteRedraw) that restores its green pixels on top.
+    image = getObpImage(self.def.image, PaletteFX.GBC_OBJ, "gbcobj")
+    redraw = true
+  end
   -- single-frame sprites (item balls, fossils...) have one fixed pose;
   -- still 3-frame sprites turn to face (the nurse at her machine,
   -- facePlayer on STAY NPCs) but never show walk frames
   if self.def.frames <= 1 then
-    love.graphics.draw(self.image, self.frames[0], x, y)
+    blitFrame(image, self.frames[0], x, y, false, redraw)
     return
   end
   local frame = (self.def.walker and walkPhase == 1)
@@ -64,11 +137,7 @@ function SpriteRenderer:draw(px, py, camX, camY, facing, walkPhase, stepFlip)
     flip = true
   end
   local quad = self.frames[frame] or self.frames[0]
-  if flip then
-    love.graphics.draw(self.image, quad, x + 16, y, 0, -1, 1)
-  else
-    love.graphics.draw(self.image, quad, x, y)
-  end
+  blitFrame(image, quad, x, y, flip, redraw)
 end
 
 return SpriteRenderer

src/render/TileRenderer.lua

@@ -90,8 +90,8 @@ function TileRenderer.setSpinning(active)
 end
 
 -- true while the spinner arrow tiles should show the 'blur' graphic; false
--- means draw nothing extra (the static mapBatch/ringBatch tile shows
--- through, matching the asm's restore-to-original behavior). The 8-tick
+-- means draw nothing extra (the static window tile shows through,
+-- matching the asm's restore-to-original behavior). The 8-tick
 -- half-period approximates one GB movement step (2px/frame); this is a
 -- deliberate approximation of wSimulatedJoypadStatesIndex bit-0 parity, not
 -- a cycle-accurate replication -- the port's tweened scriptMove has no
@@ -108,10 +108,23 @@ end
 -- the water/flower branches did before they were data.
 -- ------------------------------------------------------------------
 
--- the 8 shifted variants of one tile (built once per sheet + tile id)
+-- shade 0-3 -> one of `colors`' 4 entries (same cutoffs PaletteFX's shader
+-- uses), alpha passed through unchanged; nil colors leaves r,g,b as-is.
+-- Shared by the whole-atlas bake (getGbcAtlas) and the animated-tile
+-- variants below, so water/flowers/spinners match the static tiles around
+-- them under RED++ instead of showing their un-recolored grayscale.
+local function recolorSample(r, g, b, a, colors)
+  if not (colors and a > 0) then return r, g, b, a end
+  local col = r > 0.83 and colors[1] or r > 0.5 and colors[2]
+              or r > 0.17 and colors[3] or colors[4]
+  return col[1] / 255, col[2] / 255, col[3] / 255, a
+end
+
+-- the 8 shifted variants of one tile (built once per sheet + tile id [+
+-- gbcKey, when `colors` recolors it for RED++ -- see buildAnim])
 local shiftVariants = {}
-local function getShiftVariants(tilesetImagePath, perRow, tile)
-  local key = tilesetImagePath .. "#" .. tile
+local function getShiftVariants(tilesetImagePath, perRow, tile, colors, gbcKey)
+  local key = tilesetImagePath .. "#" .. tile .. (gbcKey or "")
   if shiftVariants[key] ~= nil then return shiftVariants[key] end
   if not (love.image and love.image.newImageData) then
     shiftVariants[key] = false
@@ -126,6 +139,7 @@ local function getShiftVariants(tilesetImagePath, perRow, tile)
     for y = 0, 7 do
       for x = 0, 7 do
         local r, g, b, a = id:getPixel(sx + x, sy + y)
+        r, g, b, a = recolorSample(r, g, b, a, colors)
         v:setPixel((x + o) % 8, y, r, g, b, a)
       end
     end
@@ -136,12 +150,27 @@ local function getShiftVariants(tilesetImagePath, perRow, tile)
 end
 
 local frameImages = {}
-local function getFrameImages(paths)
-  local key = table.concat(paths, "|")
+local function getFrameImages(paths, colors, gbcKey)
+  local key = table.concat(paths, "|") .. (gbcKey or "")
   if frameImages[key] ~= nil then return frameImages[key] end
   local out = {}
   for i, path in ipairs(paths) do
-    local ok, img = pcall(getImage, path)
+    local ok, img = pcall(function()
+      if not (colors and love.image and love.image.newImageData) then
+        return getImage(path)
+      end
+      local id = Assets.imageData(path)
+      local w, h = id:getDimensions()
+      local out2 = love.image.newImageData(w, h)
+      for y = 0, h - 1 do
+        for x = 0, w - 1 do
+          local r, g, b, a = id:getPixel(x, y)
+          r, g, b, a = recolorSample(r, g, b, a, colors)
+          out2:setPixel(x, y, r, g, b, a)
+        end
+      end
+      return love.graphics.newImage(out2)
+    end)
     if not ok then
       frameImages[key] = false
       return false
@@ -237,17 +266,33 @@ end
 -- one entry's runtime form: the tile ids it claims, the textures a step
 -- picks from, and either a step sequence (hshift/frames) or a gate
 -- (toggle).  nil when the entry's pixels could not be built.
-local function buildAnim(spec, tilesetImagePath, perRow, quads)
+--
+-- gbc, when present (RED++ with a baked atlas -- see getGbcAtlas), recolors
+-- hshift/frames entries (water/flowers) the same way the atlas bakes their
+-- static tile, so they match their surroundings instead of showing raw
+-- grayscale over an otherwise fully-colored map. The "toggle" kind
+-- (spinner puzzle blur, gfx/overworld/spinners.png) is a whole-atlas clone
+-- built from the ORIGINAL grayscale atlas, not worth recoloring for a rare,
+-- gameplay-gated blur -- it is skipped under gbc, same as the buildAnim
+-- caller already does for a texture-build failure (the static, correctly-
+-- colored tile shows through unanimated).
+local function buildAnim(spec, tilesetImagePath, perRow, quads, gbc)
   local tiles = spec.tiles
   if not tiles then
     if spec.tile == nil then return nil end
     tiles = { spec.tile }
   end
   local period = spec.period or ANIM_PERIOD
+  local colors
+  if gbc then
+    local group = PaletteFX.worldGroupAt(gbc.tilesetId, gbc.mapId, tiles[1])
+    colors = group and gbc.groupColors[group + 1]
+  end
   if spec.kind == "hshift" then
     local offsets = spec.offsets
     if not offsets or #offsets == 0 then return nil end
-    local textures = getShiftVariants(tilesetImagePath, perRow, tiles[1])
+    local textures = getShiftVariants(tilesetImagePath, perRow, tiles[1],
+                                      colors, gbc and gbc.key)
     if not textures then return nil end
     local sequence = {}
     for i, offset in ipairs(offsets) do sequence[i] = offset + 1 end
@@ -256,11 +301,12 @@ local function buildAnim(spec, tilesetImagePath, perRow, quads)
   elseif spec.kind == "frames" then
     local sequence = spec.sequence
     if not (spec.images and sequence and #sequence > 0) then return nil end
-    local textures = getFrameImages(spec.images)
+    local textures = getFrameImages(spec.images, colors, gbc and gbc.key)
     if not textures then return nil end
     return { tiles = tiles, textures = textures, sequence = sequence,
              period = period }
   elseif spec.kind == "toggle" then
+    if gbc then return nil end
     local image = getToggleImage(spec, tilesetImagePath, perRow)
     if not image then return nil end
     -- the patch texture is a whole-atlas clone, so each cell needs the
@@ -271,10 +317,102 @@ local function buildAnim(spec, tilesetImagePath, perRow, quads)
   return nil
 end
 
-function TileRenderer.new(map)
+-- True GBC overworld coloring (COLORS=RED++): recolor the WHOLE tileset
+-- atlas once, per (tileset image, map), rather than trying to retrofit the
+-- SGB zone/shade-remap-shader post-process (built for a handful of coarse
+-- screen regions) into per-tile precision -- pokered-gbc's real model is
+-- "one of 8 four-color BG palettes baked per tile GRAPHIC"
+-- (color/loadpalettes.asm LoadTilesetPalette), which is exactly a
+-- recolored atlas, not a shader pass. Every existing draw path (batches,
+-- quads, border fill) then just works unmodified, with no shader at
+-- draw time; OverworldState.sgbWorldZones skips the shade-remap zone pass
+-- entirely when this is active (re-running it over already-true-color
+-- pixels would corrupt them), and SpriteRenderer's own OBP bake composites
+-- on top with ordinary alpha blending -- no trueColor exemption needed,
+-- because there is no shader left for it to be exempted from.
+--
+-- Only the ROOF group (index 6, OVERWORLD/PLATEAU only) varies by town
+-- (LoadTownPalette); Route 6's mid-map Saffron-roof y<2 split is not
+-- reproduced (it would need a rebuild on crossing the boundary for two
+-- tile-rows of one route -- not worth the complexity), so it bakes with
+-- the route's own default roof (Vermilion's) throughout.
+local gbcAtlasCache = {}
+
+local function getGbcAtlas(imagePath, tilesetId, mapId, perRow, data)
+  local key = imagePath .. "#gbc:" .. mapId
+  if gbcAtlasCache[key] ~= nil then return gbcAtlasCache[key] or nil end
+  local img = false
+  if love.image and love.image.newImageData then
+    local groupColors = PaletteFX.worldGroupColors(data, tilesetId, mapId, nil)
+    if groupColors then
+      local src = Assets.imageData(imagePath)
+      local iw, ih = src:getDimensions()
+      local total = (iw / 8) * (ih / 8)
+      local out = love.image.newImageData(iw, ih)
+      local tileColors = {}
+      for t = 0, total - 1 do
+        local colors = tileColors[t]
+        if colors == nil then
+          local group = PaletteFX.worldGroupAt(tilesetId, mapId, t)
+          colors = (group and groupColors[group + 1]) or false
+          tileColors[t] = colors
+        end
+        local ox, oy = (t % perRow) * 8, math.floor(t / perRow) * 8
+        for py = 0, 7 do
+          for px = 0, 7 do
+            local sx, sy = ox + px, oy + py
+            local r, g, b, a = src:getPixel(sx, sy)
+            r, g, b, a = recolorSample(r, g, b, a, colors)
+            out:setPixel(sx, sy, r, g, b, a)
+          end
+        end
+      end
+      -- duplicate-tile aliases: bake a copy of a shared tile graphic into
+      -- a spare slot under a different palette group, so block cells that
+      -- draw the alias can color apart from cells sharing the raw tile
+      for _, al in ipairs(PaletteFX.TILE_ALIASES and PaletteFX.TILE_ALIASES[mapId] or {}) do
+        if al.alias < total then
+          local colors = groupColors[al.group + 1]
+          local sxo = (al.tile % perRow) * 8
+          local syo = math.floor(al.tile / perRow) * 8
+          local dxo = (al.alias % perRow) * 8
+          local dyo = math.floor(al.alias / perRow) * 8
+          for py = 0, 7 do
+            for px = 0, 7 do
+              local r, g, b, a = src:getPixel(sxo + px, syo + py)
+              r, g, b, a = recolorSample(r, g, b, a, colors)
+              out:setPixel(dxo + px, dyo + py, r, g, b, a)
+            end
+          end
+        end
+      end
+      img = love.graphics.newImage(out)
+    end
+  end
+  gbcAtlasCache[key] = img
+  return img or nil
+end
+
+-- data: Game.data (threaded through explicitly, not required lazily, so
+-- headless tests that build a map from a plain local table still work)
+function TileRenderer.new(map, data)
   local self = setmetatable({}, TileRenderer)
   self.map = map
+  self.data = data
   self.image = getImage(map.tileset.image)
+  local gbcCtx
+  if data and PaletteFX.usesGbcPack() and PaletteFX.hasWorldTileset(map.tileset.id) then
+    local gbc = getGbcAtlas(map.tileset.image, map.tileset.id, map.id,
+                            map.tileset.tilesPerRow, data)
+    if gbc then
+      self.image = gbc
+      self.gbcAtlas = true
+      -- also recolors the animated water/flower entries below, so they
+      -- match the atlas's static tiles instead of showing raw grayscale
+      gbcCtx = { tilesetId = map.tileset.id, mapId = map.id, key = "#gbc:" .. map.id,
+                groupColors = PaletteFX.worldGroupColors(data, map.tileset.id, map.id, nil) }
+    end
+  end
   -- a full-color atlas colors everything it paints, ring and border fill
   -- included, so every draw entry point claims its rect out of the pass
   self.trueColor = map.tileset.trueColor or nil
@@ -288,22 +426,24 @@ function TileRenderer.new(map)
   end
 
   local def = map.def
-  local wB, hB = def.width, def.height
-  -- two batches: the border-block ring around the map, and the map body.
-  -- Connected-map strips draw body-only on top of this map's ring.
-  local total = (wB + 2 * BORDER_BLOCKS) * (hB + 2 * BORDER_BLOCKS) * 16
-  self.ringBatch = love.graphics.newSpriteBatch(self.image, total, "static")
-  self.mapBatch = love.graphics.newSpriteBatch(self.image, wB * hB * 16, "static")
-  -- animated tiles overdraw the static batches each frame.  Entry order
-  -- decides which one claims a tile listed twice, so the vanilla defaults
-  -- keep the old water-then-flower-then-spinner precedence.
+  -- The map body measured in 8px tiles (each block is 4x4 tiles).  The tile
+  -- layer is drawn windowed to the camera (see :ensureWindow) instead of
+  -- baked into a whole-map SpriteBatch, so a map becoming visible -- a warp,
+  -- a connection seam -- costs nothing to "build": there is no per-map batch
+  -- construction that scales with map size, which is what stuttered.
+  self.bodyTilesW = def.width * 4
+  self.bodyTilesH = def.height * 4
+  -- Animated tiles overdraw the static window each frame.  Only the per-entry
+  -- render spec (textures/sequence/gate) is kept here; the animated cells are
+  -- gathered per camera window in :ensureWindow, so nothing here scales with
+  -- map size either.  Entry order decides which entry claims a tile listed
+  -- twice (the vanilla water-then-flower-then-spinner precedence).
   local anims, claimedBy = {}, {}
   local declared = map.tileset.animatedTiles
                    or TileRenderer.defaultAnimatedTiles(map.tileset)
   for _, spec in ipairs(declared) do
-    local anim = buildAnim(spec, map.tileset.image, perRow, self.quads)
+    local anim = buildAnim(spec, map.tileset.image, perRow, self.quads, gbcCtx)
     if anim then
-      anim.cells = {}
       anims[#anims + 1] = anim
       for _, tile in ipairs(anim.tiles) do
         if claimedBy[tile] == nil then claimedBy[tile] = anim end
@@ -311,53 +451,20 @@ function TileRenderer.new(map)
     end
   end
 
-  for by = -BORDER_BLOCKS, hB + BORDER_BLOCKS - 1 do
-    for bx = -BORDER_BLOCKS, wB + BORDER_BLOCKS - 1 do
-      local inside = bx >= 0 and by >= 0 and bx < wB and by < hB
-      local batch = inside and self.mapBatch or self.ringBatch
-      local block = map.tileset.blocks[map:blockAt(bx, by) + 1]
-      for ty = 0, 3 do
-        for tx = 0, 3 do
-          local tile = block[ty * 4 + tx + 1]
-          local quad = self.quads[tile]
-          if quad then
-            batch:add(quad, bx * 32 + tx * 8, by * 32 + ty * 8)
-          end
-          local anim = claimedBy[tile]
-          if anim then
-            local cells = anim.cells
-            cells[#cells + 1] = { bx * 32 + tx * 8, by * 32 + ty * 8, inside, tile }
-          end
-        end
-      end
+  -- duplicate-tile alias remap (RED++ atlas only): [blockId][0-based cell]
+  -- -> alias tile id (see PaletteFX.TILE_ALIASES / getGbcAtlas's bake)
+  local aliasMap
+  if gbcCtx then
+    for _, al in ipairs(PaletteFX.TILE_ALIASES and PaletteFX.TILE_ALIASES[map.id] or {}) do
+      aliasMap = aliasMap or {}
+      local cells = aliasMap[al.block] or {}
+      for ci in pairs(al.cells) do cells[ci] = al.alias end
+      aliasMap[al.block] = cells
     end
   end
-
-  -- animated overdraw batches: the full set (ring + body) for the
-  -- current map, and a body-only set for connected-map drawing --
-  -- a neighbor's water ring must never overdraw this map's tiles.
-  -- `quadFor`, when given, looks up a per-entry quad (used by toggle
-  -- entries, whose texture is a full tileset-atlas clone rather than a
-  -- single-tile image like the hshift/frames variants).
-  local function animBatches(entries, image, quadFor)
-    if #entries == 0 then return nil, nil end
-    local all = love.graphics.newSpriteBatch(image, #entries, "static")
-    local body
-    for _, c in ipairs(entries) do
-      if quadFor then all:add(quadFor(c[4]), c[1], c[2]) else all:add(c[1], c[2]) end
-      if c[3] then
-        body = body or love.graphics.newSpriteBatch(image, #entries, "static")
-        if quadFor then body:add(quadFor(c[4]), c[1], c[2]) else body:add(c[1], c[2]) end
-      end
-    end
-    return all, body
-  end
-  for _, anim in ipairs(anims) do
-    anim.batch, anim.bodyBatch =
-      animBatches(anim.cells, anim.textures[1], anim.quadFor)
-    anim.cells = nil
-  end
+  self.aliasMap = aliasMap
   self.anims = anims
+  self.claimedBy = claimedBy
 
   -- a repeating 32x32 image of the border block, tiled behind
   -- everything the 3-block ring doesn't cover (the survey zoom sees
@@ -392,8 +499,16 @@ function TileRenderer:drawBorderFill(camX, camY, vw, vh)
   if not self.borderFill then return end
   if self.trueColor then PaletteFX.markTrueColor(0, 0, vw, vh) end
   local x, y = math.floor(camX), math.floor(camY)
-  local quad = love.graphics.newQuad(x, y, vw, vh, 32, 32)
-  love.graphics.draw(self.borderFill, quad, 0, 0)
+  -- one reused Quad per renderer, mutated in place: this runs every
+  -- overworld frame, so allocating a fresh Quad here churned the GC
+  local q = self.borderQuad
+  if q then
+    q:setViewport(x, y, vw, vh, 32, 32)
+  else
+    q = love.graphics.newQuad(x, y, vw, vh, 32, 32)
+    self.borderQuad = q
+  end
+  love.graphics.draw(self.borderFill, q, 0, 0)
 end
 
 -- GB OBJ-to-BG priority: sprites show through BG color 0 and hide under
@@ -438,19 +553,114 @@ function TileRenderer:drawCellBottom(cx, cy, camX, camY)
   if shader then love.graphics.setShader() end
 end
 
--- animated overdraw at the current step; bodyOnly skips the ring
--- positions (connected maps draw body-only)
-function TileRenderer:drawAnimated(camX, camY, bodyOnly)
+-- queue the same bottom tile row for the post-zone sprite-redraw pass
+-- (GBC mode: OBP-baked sprites replay after the zone shader, so the
+-- grass patch that hides their feet must replay over them, colorized
+-- with the map's palette and color-0 keyed)
+function TileRenderer:markCellBottomRedraw(cx, cy, camX, camY, colors)
+  local ty = cy * 2 + 1
+  for i = 0, 1 do
+    local tx = cx * 2 + i
+    local quad = self.quads[self.map:tileAt(tx, ty)]
+    if quad then
+      PaletteFX.markSpriteRedraw(self.image, quad, tx * 8 - math.floor(camX),
+                                 ty * 8 - math.floor(camY), 1, colors, true)
+    end
+  end
+end
+
+-- Window cover for the static tile layer.  Refill the reusable window batch
+-- (and the per-entry animated batches) only when the camera has scrolled past
+-- what they already cover; a small margin keeps small scrolls free.  Cost
+-- scales with the view, never the map -- crossing a seam or warping in builds
+-- nothing.  The beyond-body area (what the old 3-block ring drew) is painted
+-- by :drawBorderFill, whose world-aligned border-block tiling is identical
+-- there, so only body tiles are gathered here.
+local WINDOW_MARGIN = 8 -- tiles of slack kept around the view between refills
+
+function TileRenderer:ensureWindow(camX, camY, vw, vh)
+  local W, H = self.bodyTilesW, self.bodyTilesH
+  vw = vw or W * 8 -- a nil view (headless draw) means the whole body
+  vh = vh or H * 8
+  -- visible body-tile range (8px tiles), clamped to the map body
+  local tx0 = math.min(W, math.max(0, math.floor(camX / 8)))
+  local ty0 = math.min(H, math.max(0, math.floor(camY / 8)))
+  local tx1 = math.max(0, math.min(W, math.floor((camX + vw) / 8) + 1))
+  local ty1 = math.max(0, math.min(H, math.floor((camY + vh) / 8) + 1))
+  local win = self.win
+  if win and tx0 >= win.tx0 and ty0 >= win.ty0
+     and tx1 <= win.tx1 and ty1 <= win.ty1 then
+    return -- still inside the last fill
+  end
+  -- refill with margin so the next few scrolled pixels stay covered
+  tx0 = math.max(0, tx0 - WINDOW_MARGIN)
+  ty0 = math.max(0, ty0 - WINDOW_MARGIN)
+  tx1 = math.min(W, tx1 + WINDOW_MARGIN)
+  ty1 = math.min(H, ty1 + WINDOW_MARGIN)
+  if not self.winBatch then
+    self.winBatch = love.graphics.newSpriteBatch(self.image, 1024, "dynamic")
+  end
+  self.winBatch:clear()
+  local anims = self.anims
+  for _, anim in ipairs(anims) do
+    if not anim.batch then
+      anim.batch = love.graphics.newSpriteBatch(anim.textures[1], 256, "dynamic")
+    end
+    anim.batch:clear()
+  end
+  local map, quads = self.map, self.quads
+  local claimedBy, aliasMap = self.claimedBy, self.aliasMap
+  for ty = ty0, ty1 - 1 do
+    local by = math.floor(ty / 4)
+    local ty4 = ty % 4
+    for tx = tx0, tx1 - 1 do
+      local blockId = map:blockAt(math.floor(tx / 4), by)
+      local block = map.tileset.blocks[blockId + 1]
+      if block then
+        local ci = ty4 * 4 + (tx % 4)
+        local tile = block[ci + 1]
+        local remap = aliasMap and aliasMap[blockId]
+        if remap and remap[ci] then tile = remap[ci] end
+        local wx, wy = tx * 8, ty * 8
+        local quad = quads[tile]
+        if quad then self.winBatch:add(quad, wx, wy) end
+        local anim = claimedBy[tile]
+        if anim then
+          if anim.quadFor then
+            anim.batch:add(anim.quadFor(tile), wx, wy)
+          else
+            anim.batch:add(wx, wy)
+          end
+        end
+      end
+    end
+  end
+  self.win = { tx0 = tx0, ty0 = ty0, tx1 = tx1, ty1 = ty1 }
+end
+
+-- draw the static tile window, then its animated overdraw, at the camera offset
+function TileRenderer:drawWindow(camX, camY, vw, vh)
+  self:ensureWindow(camX, camY, vw, vh)
+  if self.winBatch then
+    love.graphics.draw(self.winBatch, -math.floor(camX), -math.floor(camY))
+  end
+  self:drawAnimated(camX, camY)
+end
+
+-- animated overdraw at the current step, over the static window batch.  The
+-- cells were gathered for the current camera window by :ensureWindow, so this
+-- only ever touches on-screen animated tiles.
+function TileRenderer:drawAnimated(camX, camY)
   local anims = self.anims
   if not anims then return end
   local x, y = -math.floor(camX), -math.floor(camY)
   for _, anim in ipairs(anims) do
-    local batch = bodyOnly and anim.bodyBatch or anim.batch
+    local batch = anim.batch
     if batch then
       if anim.gate then
         -- a gated entry has only the two frames the asm has (patch /
         -- restore-to-static); when the gate is shut draw nothing so the
-        -- already-static mapBatch/ringBatch tile shows through unchanged
+        -- already-static window tile shows through unchanged
         if gateOpen(anim.gate) then love.graphics.draw(batch, x, y) end
       else
         local step = math.floor(animFrame / anim.period) % #anim.sequence + 1
@@ -471,27 +681,68 @@ function TileRenderer:markTrueColor(camX, camY, blocks)
                           (def.height + 2 * blocks) * 32)
 end
 
-function TileRenderer:draw(camX, camY)
+function TileRenderer:draw(camX, camY, vw, vh)
   if self.trueColor then self:markTrueColor(camX, camY, BORDER_BLOCKS) end
-  love.graphics.draw(self.ringBatch, -math.floor(camX), -math.floor(camY))
-  love.graphics.draw(self.mapBatch, -math.floor(camX), -math.floor(camY))
-  self:drawAnimated(camX, camY)
+  self:drawWindow(camX, camY, vw, vh)
 end
 
--- body only, for connected-map strips
-function TileRenderer:drawMapOnly(camX, camY)
+-- body only, for connected-map strips.  Identical to :draw now that the
+-- border ring is served by :drawBorderFill for the current map too -- the
+-- only remaining difference is the trueColor mark extent.
+function TileRenderer:drawMapOnly(camX, camY, vw, vh)
   if self.trueColor then self:markTrueColor(camX, camY, 0) end
-  love.graphics.draw(self.mapBatch, -math.floor(camX), -math.floor(camY))
-  self:drawAnimated(camX, camY, true)
+  self:drawWindow(camX, camY, vw, vh)
 end
 
--- rebuild after a block change (Cut trees)
+local function safeRelease(o)
+  if o and o.release then pcall(o.release, o) end
+end
+
+-- Release only the GPU objects this instance built and uniquely owns: the
+-- two SpriteBatches, the border-fill image and its quad, the per-tile
+-- quads, and the animated-overdraw batches.  Deliberately leaves the
+-- tileset atlas (self.image, shared through Assets/imageCache) and the
+-- animation textures (shared module caches) alone -- other maps still use
+-- them.  Used by :rebuild before it swaps in fresh batches, and by
+-- :release on eviction.
+function TileRenderer:releaseBatches()
+  safeRelease(self.winBatch); self.winBatch = nil
+  safeRelease(self.borderFill); self.borderFill = nil
+  safeRelease(self.borderQuad); self.borderQuad = nil
+  self.win = nil
+  if self.quads then
+    for _, q in pairs(self.quads) do safeRelease(q) end
+    self.quads = nil
+  end
+  if self.anims then
+    for _, a in ipairs(self.anims) do
+      safeRelease(a.batch); a.batch = nil
+      -- a.textures are shared, module-cached: never released here
+    end
+  end
+end
+
+-- Full teardown for eviction (MapLoader.evict): the owned batches, plus
+-- the RED++ per-map recolored atlas, which -- unlike the plain tileset
+-- atlas -- is unique to this map (gbcAtlasCache is keyed by map id).
+function TileRenderer:release()
+  self:releaseBatches()
+  if self.gbcAtlas and self.image then
+    local key = self.map.tileset.image .. "#gbc:" .. self.map.id
+    if gbcAtlasCache[key] == self.image then gbcAtlasCache[key] = nil end
+    safeRelease(self.image)
+    self.image = nil
+    self.gbcAtlas = nil
+  end
+  self.anims = nil
+end
+
+-- rebuild after a block change (Cut trees, card-key doors).  The tile layer
+-- is read live from the map on every window fill, so a block swap only needs
+-- the cached window dropped -- the next draw re-reads the changed blocks.  No
+-- SpriteBatch is reconstructed; that is the whole point of the windowed draw.
 function TileRenderer:rebuild()
-  local fresh = TileRenderer.new(self.map)
-  self.ringBatch = fresh.ringBatch
-  self.mapBatch = fresh.mapBatch
-  self.anims = fresh.anims
-  self.borderFill = fresh.borderFill
+  self.win = nil
 end
 
 -- drop every atlas and every derived animation texture so the next

src/script/Commands.lua

@@ -5,6 +5,7 @@
 -- Conditionals: check_flag stores its result in ctx.lastCheck;
 -- jump_if_true/jump_if_false jump to an absolute row index.
 
+local Collision = require("src.world.Collision")
 local Flags = require("src.script.Flags")
 local Logger = require("src.core.Logger")
 local Screens = require("src.ui.Screens")
@@ -225,7 +226,7 @@ function Commands.start_battle(ctx, kind, a, b)
     ctx.lastBattleResult = result
     ctx.lastCheck = result == "win"
     if ctx.overworld then
-      ctx.overworld:afterBattle(result)
+      ctx.overworld:afterBattle(result, battle)
     end
     runner:resume()
   end
@@ -269,7 +270,10 @@ end
 local DIRS4 = { { 0, -1, "up" }, { 0, 1, "down" },
                 { -1, 0, "left" }, { 1, 0, "right" } }
 
-local function bfsPath(map, sx, sy, tx, ty)
+-- entities/mover let the walk route around other entities' cells (the
+-- player especially), so a scripted NPC never clips through them; the
+-- target cell is exempt so an NPC can still walk up onto its goal
+local function bfsPath(map, sx, sy, tx, ty, entities, mover)
   local key = function(x, y) return y * 1000 + x end
   local prev = { [key(sx, sy)] = false }
   local queue = { { sx, sy } }
@@ -289,8 +293,11 @@ local function bfsPath(map, sx, sy, tx, ty)
     for _, d in ipairs(DIRS4) do
       local nx, ny = cx + d[1], cy + d[2]
       local nk = key(nx, ny)
+      local isTarget = nx == tx and ny == ty
       if prev[nk] == nil and map:inBounds(nx, ny)
-         and (map:isWalkableCell(nx, ny) or (nx == tx and ny == ty)) then
+         and (map:isWalkableCell(nx, ny) or isTarget)
+         and (isTarget or not entities
+              or not Collision.occupied(entities, nx, ny, mover)) then
         prev[nk] = { cx, cy, d[3] }
         table.insert(queue, { nx, ny })
       end
@@ -303,7 +310,7 @@ function Commands.move_npc_to(ctx, objIndex, tx, ty)
   local ow = ctx.overworld
   local npc = ow:npcByIndex(objIndex)
   if not npc then return end
-  local path = bfsPath(ow.map, npc.cellX, npc.cellY, tx, ty)
+  local path = bfsPath(ow.map, npc.cellX, npc.cellY, tx, ty, ow.entities, npc)
   if not path then
     Logger.warn("move_npc_to: no path to (%d,%d)", tx, ty)
     return
@@ -390,6 +397,7 @@ local function toggleObject(ctx, mapId, objName, visible)
   -- positions mid-cutscene)
   local ow = ctx.overworld
   if not ow or ow.map.id ~= mapId then return end
+  ow.npcPool = ow.npcPool or {}
   if visible then
     for _, n in ipairs(ow.npcs) do
       if n.def.name == objName then return end
@@ -400,12 +408,16 @@ local function toggleObject(ctx, mapId, objName, visible)
         local npc = NPC.new(ctx.game.data, mapId, obj)
         table.insert(ow.npcs, npc)
         table.insert(ow.entities, npc)
+        ow.npcPool[npc.id] = npc
         return
       end
     end
   else
     for i = #ow.npcs, 1, -1 do
-      if ow.npcs[i].def.name == objName then table.remove(ow.npcs, i) end
+      if ow.npcs[i].def.name == objName then
+        ow.npcPool[ow.npcs[i].id] = nil
+        table.remove(ow.npcs, i)
+      end
     end
     for i = #ow.entities, 1, -1 do
       local e = ow.entities[i]
@@ -523,11 +535,11 @@ function Commands.record_hall_of_fame(ctx)
       -- save keeps the player standing in the HALL_OF_FAME room.  (The
       -- E4 room-script/event resets that precede the save in pokered are
       -- the Indigo lobby's re-entry reset here, data/scripts/story6.lua.)
-      -- The reset heal point is field.boot's spawn, PALLET_TOWN (5,6)
-      -- in the vanilla dataset.
+      -- pokered writes PALLET_TOWN here as a literal, not as "the spawn" --
+      -- the vanilla spawn is REDS_HOUSE_2F. SaveData.defaultHeal carries
+      -- that split (and lets a total conversion redirect it).
       local boot = game.data.field and game.data.field.boot or {}
-      ctx.save.lastHeal = { map = boot.startMap or "PALLET_TOWN",
-                            x = boot.startX or 5, y = boot.startY or 6 }
+      ctx.save.lastHeal = require("src.core.SaveData").defaultHeal(boot)
       if game.writeSave then game:writeSave() end
     end)
   end)
@@ -823,7 +835,12 @@ end
 -- registry and block until the screen pops itself
 function Commands.push_screen(ctx, screenId, args)
   local screens = ctx.game.data.screens
-  if not (screens and screens[screenId]) then
+  local known = screens and screens[screenId] ~= nil
+  if not known then
+    -- builtin engine screens (src/ui/<id>.lua) resolve through Screens too
+    known = pcall(Screens.get, ctx.game, screenId)
+  end
+  if not known then
     error(("push_screen: unknown screen '%s'"):format(tostring(screenId)), 0)
   end
   local runner = ctx.runner

src/ui/BagMenu.lua

@@ -71,6 +71,12 @@ local function useOn(game, battle, id, target, list, moveIndex)
     consume(game, id)
     list:close()
     showMessages(game, payload, function()
+      -- ItemUsePokeDoll sets wEscapedFromBattle and never touches
+      -- wBattleResult, so a script that reads the result afterwards sees
+      -- 0 -- "defeated". The ghost MAROWAK's script keys on exactly that
+      -- (the Poke Doll trick); the flag lets it tell this escape from an
+      -- ordinary RUN, which writes $2.
+      battle.pokeDollEscape = true
       battle.result = "run"
       battle.afterQueue = "finish"
       battle.phase = "messages"
@@ -290,37 +296,52 @@ local function useOn(game, battle, id, target, list, moveIndex)
   showMessages(game, payload) -- failed
 end
 
+local function pickTargetAndUse(game, battle, id, list)
+  -- pick a target from the party
+  -- the ETHERs and PP UP open the move menu after picking a mon
+  -- (ItemUsePPRestore / ItemUsePPUp); the ELIXERs hit every move
+  local wantsMove = id == "ETHER" or id == "MAX_ETHER" or id == "PP_UP"
+  require("src.ui.Screens").push(game, "PartyMenu", {
+    pickOnly = true,
+    onSwitch = function(mon)
+      if not wantsMove then
+        useOn(game, battle, id, mon, list)
+        return
+      end
+      local rows = {}
+      for mi, mv in ipairs(mon.moves) do
+        local mdef = game.data.moves[mv.id]
+        table.insert(rows, {
+          value = mi,
+          label = mdef and mdef.name or mv.id,
+          right = ("%d"):format(mv.pp),
+        })
+      end
+      game.stack:push(ListMenu.new(game, "Which move?", rows, {
+        onChoose = function(row, l)
+          l:close()
+          useOn(game, battle, id, mon, list, row.value)
+        end,
+      }))
+    end,
+  })
+end
+
 local function useItem(game, battle, id, list)
   local def = game.data.items[id]
   if ItemEffects.needsTarget(id, def) and not ItemEffects.isBall(id) then
-    -- pick a target from the party
-    -- the ETHERs and PP UP open the move menu after picking a mon
-    -- (ItemUsePPRestore / ItemUsePPUp); the ELIXERs hit every move
-    local wantsMove = id == "ETHER" or id == "MAX_ETHER" or id == "PP_UP"
-    require("src.ui.Screens").push(game, "PartyMenu", {
-      pickOnly = true,
-      onSwitch = function(mon)
-        if not wantsMove then
-          useOn(game, battle, id, mon, list)
-          return
-        end
-        local rows = {}
-        for mi, mv in ipairs(mon.moves) do
-          local mdef = game.data.moves[mv.id]
-          table.insert(rows, {
-            value = mi,
-            label = mdef and mdef.name or mv.id,
-            right = ("%d"):format(mv.pp),
-          })
-        end
-        game.stack:push(ListMenu.new(game, "Which move?", rows, {
-          onChoose = function(row, l)
-            l:close()
-            useOn(game, battle, id, mon, list, row.value)
-          end,
-        }))
-      end,
-    })
+    -- TMs/HMs boot up and announce their move before the target picker
+    -- (ItemUseTMHM: BootedUpTMText / BootedUpHMText + TeachMachineMoveText)
+    if def and def.machine then
+      local moveDef = game.data.moves[def.machine.move]
+      local moveName = moveDef and moveDef.name or def.machine.move
+      local booted = def.machine.kind == "HM"
+        and "Booted up an HM!" or "Booted up a TM!"
+      showMessages(game, { booted, ("It contained\n%s!"):format(moveName) },
+        function() pickTargetAndUse(game, battle, id, list) end)
+      return
+    end
+    pickTargetAndUse(game, battle, id, list)
   else
     useOn(game, battle, id, nil, list)
   end

src/ui/BindingsMenu.lua

@@ -1,11 +1,12 @@
 -- Rebinding over the logical Game Boy buttons (gap C2's file-12 half,
 -- 12-ui-extensibility 4.4): one row per button, A arms a "PRESS A BUTTON"
 -- capture and the captured key or pad button lands in
--- save.options.bindings -- the overlay src/core/Bindings.lua
--- (04-mod-api-core) reads back over Input's fixed map.
+-- save.options.bindings, which Input:applyBindings layers over its fixed
+-- default map (see src/core/Input.lua and Game:applyOptions).
 
 local Font = require("src.render.Font")
 local ListMenu = require("src.ui.ListMenu")
+local Input = require("src.core.Input")
 
 local BindingsMenu = setmetatable({}, { __index = ListMenu })
 BindingsMenu.__index = BindingsMenu
@@ -78,6 +79,7 @@ function BindingsMenu:storeBinding(slot, value)
   b[slot] = value
   opts.bindings[item.button.id] = b
   item.right = boundKey(opts.bindings, item.button):upper()
+  Input:applyBindings(opts.bindings)
   if game.writeOptions then game:writeOptions() end
 end
 

src/ui/EvolutionState.lua

@@ -5,6 +5,7 @@
 -- has no cancel; the flash always completes).
 
 local Font = require("src.render.Font")
+local Music = require("src.core.Music")
 
 local EvolutionState = {}
 EvolutionState.__index = EvolutionState
@@ -39,6 +40,7 @@ function EvolutionState.new(game, mon, newSpecies, onDone)
   self.newSprite = frontSprite(game, newSpecies)
   self.t = 0
   self.done = false
+  Music.play(game.data, Music.special(game.data, "evolution"))
   return self
 end
 
@@ -57,6 +59,7 @@ function EvolutionState:update(dt)
       ("Congratulations!\nYour %s\nevolved into\n%s!")
         :format(self.oldName, newName),
       function()
+        Music.restoreMap(game.data)
         game.stack:pop() -- the evolution screen itself
         if self.onDone then self.onDone() end
       end))

src/ui/OakSpeech.lua

@@ -16,6 +16,11 @@ local OakSpeech = {}
 OakSpeech.__index = OakSpeech
 OakSpeech.isOpaque = true
 
+-- FadeInIntroPic runs a 6-step palette fade; MovePicLeft wipes the mon
+-- sprite in from the right.  Both play out before the beat's text prints.
+local FADE_FRAMES = 24
+local WIPE_FRAMES = 32
+
 -- naming presets are boot config (field.boot.namePresets), which a total
 -- conversion replaces; the Red/Blue lists remain the fallback
 local function namePresets(game, who, fallback)
@@ -93,16 +98,23 @@ function OakSpeech:say(key, next)
 end
 
 local STEPS = {
-  -- 1. Oak's welcome
+  -- 1. Oak's welcome (Oak's pic fades in first, FadeInIntroPic)
   function(self)
     self.pic = self.oakPic
-    self:say("_OakSpeechText1", function() self:advance() end)
+    self:revealPic("fade", function()
+      self:say("_OakSpeechText1", function() self:advance() end)
+    end)
   end,
-  -- 2. NIDORINO show-off, with its cry
+  -- 2. NIDORINO show-off: the front sprite is mirrored horizontally
+  --    (LoadFlippedFrontSpriteByMonIndex) and wipes in from the right
+  --    (MovePicLeft), then its cry sounds and the text prints
   function(self)
     self.pic = self.demoPic
-    Sound.playCry(self.game.data, self.demoSpecies)
-    self:say("_OakSpeechText2A", function() self:advance() end)
+    self.picFlip = true
+    self:revealPic("wipe", function()
+      Sound.playCry(self.game.data, self.demoSpecies)
+      self:say("_OakSpeechText2A", function() self:advance() end)
+    end)
   end,
   -- 3. the rest of the world-of-POKéMON spiel
   function(self)
@@ -175,8 +187,21 @@ function OakSpeech:lastPageLines(key)
   return ok and lines or nil
 end
 
+-- Reveal the current pic over `dur` frames, then run `next`.  Ticked from
+-- update() while OakSpeech is the top state (before the beat's text box is
+-- pushed), so the fade/wipe plays out ahead of the text like the ROM.
+function OakSpeech:revealPic(kind, next)
+  self.picReveal = {
+    kind = kind,
+    t = 0,
+    dur = kind == "fade" and FADE_FRAMES or WIPE_FRAMES,
+    next = next,
+  }
+end
+
 function OakSpeech:advance()
   self.step = self.step + 1
+  self.picFlip = false
   local fn = STEPS[self.step]
   if fn then
     fn(self)
@@ -205,6 +230,15 @@ end
 --                 ClearScreenArea / wUpdateSpritesEnabled; ld c, 50)
 --   frames 79-102 GBFadeOutToWhite          (3 palettes x 8 frames)
 function OakSpeech:update(dt)
+  local r = self.picReveal
+  if r then
+    r.t = r.t + 1
+    if r.t >= r.dur then
+      self.picReveal = nil
+      if r.next then r.next() end
+    end
+    return
+  end
   if not self.shrink then return end
   local s = self.shrink
   s.frame = s.frame + 1
@@ -238,7 +272,23 @@ function OakSpeech:draw()
     local w, h = self.pic:getDimensions()
     local x = 48 + math.floor((8 - w / 8) / 2) * 8
     local y = 32 + (7 - h / 8) * 8
-    love.graphics.draw(self.pic, x, y)
+    local reveal = self.picReveal
+    local off = 0
+    if reveal and reveal.kind == "fade" then
+      -- FadeInIntroPic: ramp the pic's alpha up over the fade window
+      love.graphics.setColor(1, 1, 1, math.min(1, reveal.t / reveal.dur))
+    elseif reveal and reveal.kind == "wipe" then
+      -- MovePicLeft: the pic slides in from the right edge to its spot
+      off = math.floor((160 - x) * (1 - math.min(1, reveal.t / reveal.dur)))
+    end
+    if self.picFlip then
+      -- LoadFlippedFrontSpriteByMonIndex mirrors the front sprite
+      -- horizontally (wSpriteFlipped): draw with a negative x scale
+      love.graphics.draw(self.pic, x + off + w, y, 0, -1, 1)
+    else
+      love.graphics.draw(self.pic, x + off, y)
+    end
+    love.graphics.setColor(1, 1, 1, 1)
   end
   if self.walkVisible and self.walkSheet then
     -- ResetPlayerSpriteData: Y screen pos $3c, X screen pos $40

src/ui/OptionsMenu.lua

@@ -3,7 +3,7 @@
 -- (cycles the merged rulesets registry; gen1_faithful keeps the original
 -- quirks), plus the port's audio rows and display rows: music/SFX
 -- volume (0-7), music low-pass filter (OFF/1X/2X/3X), COLORS / TILT /
--- GBC FX, and the MODS row that opens the mod manager.
+-- GBC FX / VIDEO MODE, and the MODS row that opens the mod manager.
 -- Rows are descriptors fed through the ui.options.rows hook, so mods can
 -- add their own; CANCEL is appended after the hook and stays fixed on the
 -- bottom line like pokered's.
@@ -11,6 +11,9 @@
 local PaletteFX = require("src.render.PaletteFX")
 local Tilt = require("src.render.Tilt")
 local GBCFX = require("src.render.GBCFX")
+local GameSpeed = require("src.core.GameSpeed")
+local VideoMode = require("src.core.VideoMode")
+local FrameCap = require("src.core.FrameCap")
 local Logger = require("src.core.Logger")
 local Runtime = require("src.mods.Runtime")
 local OptionRows = require("src.ui.OptionRows")
@@ -190,6 +193,40 @@ local function buildRows(game)
         GBCFX.setLevel(o.gbcfx)
         return true
       end },
+    { id = "videoMode", label = "VIDEO MODE",
+      value = function(g)
+        return VideoMode.modeLabel(g.save.options.videoMode)
+      end,
+      step = function(g, dir)
+        local o = g.save.options
+        o.videoMode = VideoMode.cycle(o.videoMode, dir)
+        VideoMode.apply(o.videoMode)
+        return true
+      end },
+    -- hard render cap (issue #88): bounds the present rate so a
+    -- driver-forced vsync-off run cannot spin at thousands of FPS.  Logic
+    -- is fixed-step off dt, so this touches presentation only.
+    { id = "fpsCap", label = "MAX FPS",
+      value = function(g)
+        return FrameCap.label(g.save.options.fpsCap)
+      end,
+      step = function(g, dir)
+        local o = g.save.options
+        o.fpsCap = FrameCap.cycle(o.fpsCap, dir)
+        FrameCap.apply(o.fpsCap)
+        return true
+      end },
+    -- fast-forward the logic clock only; music and sfx keep their tempo
+    -- (src/core/GameSpeed.lua), so this is safe to leave on
+    { id = "speed", label = "GAME SPEED",
+      value = function(g)
+        return GameSpeed.levelLabel(g.save.options.speed)
+      end,
+      step = function(g, dir)
+        local o = g.save.options
+        o.speed = GameSpeed.cycle(o.speed, dir)
+        return true
+      end },
     -- the manager's discoverable home (18-mod-manager-ux); inert until
     -- opened, so the row costs a vanilla install nothing
     { id = "mods", label = "MODS",

src/ui/PlayerPC.lua

@@ -99,7 +99,13 @@ end
 local function deposit(game)
   local pc = game.save.pcItems
   local inv = game.save.inventory
-  game.stack:push(ListMenu.new(game, "DEPOSIT ITEM", buildItems(game, inv), {
+  local Bag = require("src.inventory.Bag")
+  -- badges live in save.inventory alongside items but are not depositable
+  local depositable = {}
+  for id, count in pairs(inv) do
+    if not Bag.isBadge(id) then depositable[id] = count end
+  end
+  game.stack:push(ListMenu.new(game, "DEPOSIT ITEM", buildItems(game, depositable), {
     onChoose = function(item, list)
       askQuantity(game, list, inv[item.value] or 1, item.value, function(qty)
         if pcFull(game, pc, item.value) then

src/ui/StartMenu.lua

@@ -4,6 +4,7 @@
 -- item list runs through the ui.start_menu.items hook before the menu
 -- opens, so mods insert or remove rows without patching this file.
 
+local Font = require("src.render.Font")
 local Logger = require("src.core.Logger")
 local Menu = require("src.ui.Menu")
 local Runtime = require("src.mods.Runtime")
@@ -126,6 +127,24 @@ function StartMenu.new(game)
     baseUpdate(self, dt)
     game.save.startMenuIndex = self.index
   end
+
+  -- inside the Safari Zone the start menu also shows remaining steps and
+  -- SAFARI BALLs (PrintSafariZoneSteps): a 9x5 border at the top-left with
+  -- "steps/500" and "BALL xx"
+  if game.save.safari then
+    local baseDraw = menu.draw
+    menu.draw = function(self)
+      baseDraw(self)
+      local safari = game.save.safari
+      Font.drawBox(0, 0, 9, 5)
+      love.graphics.setColor(0, 0, 0, 1)
+      Font.draw(("%3d"):format(math.floor(safari.steps or 0)), 8, 8)
+      Font.draw("/500", 32, 8)
+      Font.draw("BALL", 8, 24)
+      Font.draw(("%2d"):format(math.floor(safari.balls or 0)), 48, 24)
+      love.graphics.setColor(1, 1, 1, 1)
+    end
+  end
   return menu
 end
 

src/ui/TitleState.lua

@@ -1,10 +1,11 @@
 -- Title screen (engine/movie/title.asm + engine/menus/main_menu.asm):
 -- the logo (or a text fallback while the asset is missing), a cycling
 -- Pokémon front sprite, the copyright line, and the CONTINUE / NEW GAME
--- / OPTION main menu on START or A.
+-- / OPTION / EXIT GAME main menu on START or A.
 
 local Font = require("src.render.Font")
 local Music = require("src.core.Music")
+local GameVersion = require("src.core.GameVersion")
 
 local TitleState = {}
 TitleState.__index = TitleState
@@ -30,6 +31,13 @@ local CYCLE_SPECIES = {
   "PIKACHU", "CLEFAIRY", "RHYDON", "ABRA", "GASTLY", "DITTO",
   "PIDGEOTTO", "ONIX", "PONYTA", "MAGIKARP",
 }
+-- Blue's TitleMons (data/pokemon/title_mons.asm, _BLUE branch): STARTER2 is
+-- Squirtle, STARTER1 Charmander, STARTER3 Bulbasaur.
+local BLUE_CYCLE_SPECIES = {
+  "SQUIRTLE", "CHARMANDER", "BULBASAUR", "MANKEY", "HITMONLEE",
+  "VULPIX", "CHANSEY", "AERODACTYL", "JOLTEON", "SNORLAX",
+  "GLOOM", "POLIWAG", "DODUO", "PORYGON", "GENGAR", "RAICHU",
+}
 local CYCLE_FRAMES = 240 -- the original waits ~4s between picks
 
 local function tryImage(path)
@@ -61,9 +69,13 @@ function TitleState.new(game, opts)
   self.version = tryImage(imagePath(title.versionRibbon or title.version)
                           or "assets/generated/title/red_version.png")
   self.player = tryImage("assets/generated/title/player.png")
+  self.blue = GameVersion.isBlue()
+  -- Blue cycles its own title mons and prints its ribbon contiguously; a
+  -- field.title.cycleSpecies override (mods / total conversions) still wins.
+  local defaultCycle = self.blue and BLUE_CYCLE_SPECIES or CYCLE_SPECIES
   self.cycleSpecies = (type(title.cycleSpecies) == "table"
                        and #title.cycleSpecies > 0)
-                      and title.cycleSpecies or CYCLE_SPECIES
+                      and title.cycleSpecies or defaultCycle
   self.sprites = {} -- species -> image or false (load failed)
   self.cycleIndex = 1
   self.timer = 0
@@ -92,8 +104,10 @@ end
 
 local function hasSave()
   local ok, info = pcall(function()
+    -- the active game's save file (save.lua for Red, save_blue.lua for Blue)
+    local name = require("src.core.SaveData").saveFilename(GameVersion.get())
     return love.filesystem and love.filesystem.getInfo
-       and love.filesystem.getInfo("save.lua") or nil
+       and love.filesystem.getInfo(name) or nil
   end)
   return ok and info ~= nil
 end
@@ -165,6 +179,11 @@ function TitleState:openMenu()
   table.insert(items, { label = "OPTION", onSelect = function()
     require("src.ui.Screens").push(game, "OptionsMenu")
   end })
+  table.insert(items, { label = "EXIT GAME", onSelect = function()
+    if love.event and love.event.quit then
+      love.event.quit()
+    end
+  end })
   game.stack:push(Menu.new(game, items,
                            { tx = 0, ty = 0, tw = 13, th = #items * 2 + 2 }))
 end
@@ -206,17 +225,26 @@ function TitleState:draw()
     love.graphics.draw(self.logo, 16, 8)
   else
     love.graphics.setColor(0, 0, 0, 1)
-    Font.draw("POKéMON RED", (160 - 11 * 8) / 2, 24)
+    Font.draw(self.blue and "POKéMON BLUE" or "POKéMON RED",
+      (160 - 12 * 8) / 2, 24)
     love.graphics.setColor(1, 1, 1, 1)
   end
   if self.version then
-    -- the strip holds Red+Green+Version glyphs; the tilemap prints
-    -- tiles $60,$61 ("Red"), a space, then $65-$69 ("Version")
     local iw, ih = self.version:getDimensions()
-    love.graphics.draw(self.version,
-      love.graphics.newQuad(0, 0, 16, 8, iw, ih), 56, 64)
-    love.graphics.draw(self.version,
-      love.graphics.newQuad(40, 0, 40, 8, iw, ih), 80, 64)
+    if self.blue then
+      -- Blue prints its ribbon contiguously ("Blue Version", hlcoord 7,8).
+      -- The extracted strip packs those eight glyph tiles into image tiles
+      -- 0..7 (tiles 8..9 are blank), so draw that 64px run at px (56, 64).
+      love.graphics.draw(self.version,
+        love.graphics.newQuad(0, 0, 64, 8, iw, ih), 56, 64)
+    else
+      -- Red's strip holds Red+Green+Version glyphs; the tilemap prints
+      -- tiles $60,$61 ("Red"), a space, then $65-$69 ("Version").
+      love.graphics.draw(self.version,
+        love.graphics.newQuad(0, 0, 16, 8, iw, ih), 56, 64)
+      love.graphics.draw(self.version,
+        love.graphics.newQuad(40, 0, 40, 8, iw, ih), 80, 64)
+    end
   end
   local sprite = self:currentSprite()
   if sprite then

src/world/FieldDefaults.lua

@@ -92,6 +92,12 @@ local LAST_MAP_REWRITES = {
   UNDERGROUND_PATH_ROUTE_6 = { rules = { { map = "ROUTE_6" } } },
   UNDERGROUND_PATH_ROUTE_7 = { rules = { { map = "ROUTE_7" } } },
   UNDERGROUND_PATH_ROUTE_8 = { rules = { { map = "ROUTE_8" } } },
+  -- DiglettsCaveRoute{2,11}_Script are the same pattern for the cave's two
+  -- entrance houses.  Without these, crossing the cave and taking the far
+  -- house's LAST_MAP door warps you back to the route you ENTERED from --
+  -- the whole cave was a one-way trip that always returned to its start.
+  DIGLETTS_CAVE_ROUTE_2 = { rules = { { map = "ROUTE_2" } } },
+  DIGLETTS_CAVE_ROUTE_11 = { rules = { { map = "ROUTE_11" } } },
 }
 
 FieldDefaults.FIELD = {

src/world/Map.lua

@@ -24,11 +24,63 @@ local NO_SHORE_TILESETS = { SHIP_PORT = true }
 -- what counts as "outside" for the wLastMap memory (CheckIfInOutsideMap)
 local OUTSIDE_TILESETS = { "OVERWORLD", "PLATEAU" }
 
+-- warp pads and fall-through holes (data/tilesets/warp_pad_hole_tile_ids
+-- .asm WarpPadAndHoleData); a tileset record carrying warpPadTiles
+-- ({ [tileId] = "pad"|"hole" }) wins over these vanilla rows
+local WARP_PAD_TILES = {
+  FACILITY = { [0x20] = "pad", [0x11] = "hole" },
+  CAVERN = { [0x22] = "hole" },
+  INTERIOR = { [0x55] = "pad" },
+}
+
 local function hashSet(list, into)
   for _, t in ipairs(list) do into[t] = true end
   return into
 end
 
+-- Passability of a cell of an UNLOADED map def -- the connected neighbor
+-- during an edge crossing.  pokered's collision check reads the neighbor
+-- strip's tile bytes, so a step off the map edge onto a solid tile of
+-- the connected map bumps exactly like an in-map wall; the port needs
+-- the same read without building the whole Map.  Same math as cellTile
+-- on the raw blocks, honoring the surf rule (water/shore passable only
+-- while surfing, same fallbacks as Map.new).
+function Map.defPassable(def, tilesetDef, cx, cy, surfing)
+  -- Fail closed: a missing tileset used to return true and re-open the
+  -- Pallet south-shore stranding (cross onto ROUTE_21 solids). No data
+  -- means we cannot prove the landing is safe, so the step bumps.
+  if not (def and tilesetDef and tilesetDef.blocks and tilesetDef.walkable) then
+    return false
+  end
+  local tx, ty = cx * 2, cy * 2 + 1
+  local bx, by = math.floor(tx / 4), math.floor(ty / 4)
+  local id
+  if bx < 0 or by < 0 or bx >= def.width or by >= def.height then
+    id = def.borderBlock
+  else
+    id = def.blocks[by * def.width + bx + 1]
+  end
+  local block = tilesetDef.blocks[(id or 0) + 1]
+  if not block then return false end
+  local tile = block[(ty % 4) * 4 + (tx % 4) + 1]
+  for _, t in ipairs(tilesetDef.walkable) do
+    if t == tile then return true end
+  end
+  if surfing then
+    for _, t in ipairs(tilesetDef.waterTiles or WATER_TILES) do
+      if t == tile then return true end
+    end
+    local shore = tilesetDef.shoreTiles
+    if shore == nil and not NO_SHORE_TILESETS[def.tileset] then
+      shore = SHORE_TILES
+    end
+    for _, t in ipairs(shore or {}) do
+      if t == tile then return true end
+    end
+  end
+  return false
+end
+
 function Map.new(def, tilesetDef)
   local self = setmetatable({}, Map)
   self.def = def
@@ -156,6 +208,14 @@ function Map:isWarpTileCell(cx, cy)
   return self.doorTiles[t] or self.warpTiles[t] or false
 end
 
+-- "pad"/"hole" when the cell's collision tile is a teleporter warp pad or
+-- a fall-through hole (IsPlayerStandingOnWarpPadOrHole), nil otherwise
+function Map:warpPadOrHoleAt(cx, cy)
+  local table_ = self.tileset.warpPadTiles or WARP_PAD_TILES[self.def.tileset]
+  if not table_ then return nil end
+  return table_[self:cellTile(cx, cy)]
+end
+
 -- counter tiles allow talking to NPCs across them (mart clerks, nurses)
 function Map:isCounterCell(cx, cy)
   local t = self:cellTile(cx, cy)

src/world/MapLoader.lua

@@ -2,6 +2,13 @@
 -- data, cached by map id.  The cache is keyed so a mod that patches one
 -- map record after boot (or the dev-mode hot reload) can drop just that
 -- entry instead of every map's SpriteBatches.
+--
+-- The resident set is trimmed LRU (trim) so exploring a large world never
+-- holds every visited map's GPU objects at once.  Maps are built on demand
+-- and cheaply: a map's tile layer draws windowed to the camera (see
+-- TileRenderer), so there is no per-map batch to construct up front and thus
+-- nothing to stream -- OverworldState:rebuildNeighbors just loads each
+-- neighbor directly.
 
 local Assets = require("src.render.Assets")
 local Map = require("src.world.Map")
@@ -10,9 +17,20 @@ local TileRenderer = require("src.render.TileRenderer")
 local MapLoader = {}
 
 local cache = {}
+-- mapId -> monotonic access stamp, for LRU eviction
+local lru = {}
+local accessSeq = 0
+-- max map renderers kept resident.  Comfortably above the largest
+-- current+neighbor set (~15 in dense overworld), so protected maps are
+-- never the ones evicted; this only caps the lingering trail behind you.
+local RESIDENT_CAP = 32
 
-function MapLoader.load(data, mapId)
-  if cache[mapId] then return cache[mapId] end
+local function touch(mapId)
+  accessSeq = accessSeq + 1
+  lru[mapId] = accessSeq
+end
+
+local function build(data, mapId)
   local def = data.maps[mapId]
   assert(def, "unknown map: " .. tostring(mapId) ..
          " (not in the maps registry)")
@@ -23,28 +41,77 @@ function MapLoader.load(data, mapId)
   -- warp tiles are stored per tileset macro name; the generated tilesets
   -- module carries them in the tileset entry itself
   local map = Map.new(def, tilesetDef)
-  map.renderer = TileRenderer.new(map)
+  map.renderer = TileRenderer.new(map, data)
   cache[mapId] = map
+  touch(mapId)
   return map
 end
 
+function MapLoader.load(data, mapId)
+  local m = cache[mapId]
+  if m then touch(mapId); return m end
+  return build(data, mapId)
+end
+
 -- the live instance for a map id, or nil when it has not been loaded;
 -- callers that must not build a map (invalidation, tests) use this
 function MapLoader.cached(mapId)
-  return cache[mapId]
+  local m = cache[mapId]
+  if m then touch(mapId) end
+  return m
+end
+
+-- evict one resident map, releasing its renderer's GPU objects.  Callers
+-- must ensure the map is not the current map and not drawn as a connected
+-- strip (nothing live may hold its renderer) -- MapLoader.trim guarantees
+-- this via its `protected` set.
+function MapLoader.evict(mapId)
+  local m = cache[mapId]
+  if not m then return false end
+  cache[mapId] = nil
+  lru[mapId] = nil
+  local r = m.renderer
+  if r and r.release then pcall(r.release, r) end
+  return true
+end
+
+-- keep the resident renderer set bounded.  `protected` (mapId -> true) is
+-- never evicted (the current map and everything drawn as a connected
+-- strip); the rest is trimmed least-recently-used down to RESIDENT_CAP.
+function MapLoader.trim(protected)
+  local n = 0
+  for _ in pairs(cache) do n = n + 1 end
+  if n <= RESIDENT_CAP then return end
+  local ids = {}
+  for id in pairs(cache) do
+    if not (protected and protected[id]) then ids[#ids + 1] = id end
+  end
+  table.sort(ids, function(a, b) return (lru[a] or 0) < (lru[b] or 0) end)
+  local over = n - RESIDENT_CAP
+  for _, id in ipairs(ids) do
+    if over <= 0 then break end
+    MapLoader.evict(id)
+    over = over - 1
+  end
 end
 
 -- drop one map so the next load re-reads its record and rebuilds its
--- renderer.  Callers holding the old instance keep it -- OverworldState
--- re-points self.map itself (WorldAPI:invalidateMap).
+-- renderer.  Deliberately does NOT release the old renderer: callers
+-- holding the old instance keep drawing it until they re-point themselves
+-- (OverworldState re-points self.map / self.neighbors via setMap /
+-- rebuildNeighbors), so releasing here would free a batch still in use.
+-- The orphaned instance is reclaimed by GC; MapLoader.evict is the path
+-- that releases eagerly, and it only runs on maps nothing live holds.
 function MapLoader.invalidate(mapId)
   local had = cache[mapId] ~= nil
   cache[mapId] = nil
+  lru[mapId] = nil
   return had
 end
 
 function MapLoader.invalidateAll()
   cache = {}
+  lru = {}
 end
 
 -- kept as the pre-v2 name

src/world/NPC.lua

@@ -26,7 +26,7 @@ function NPC.new(data, mapId, objDef)
   self.id = string.format("%s_obj_%d", mapId, objDef.index)
   local spriteDef = data.sprites[objDef.sprite]
   assert(spriteDef, "unknown sprite " .. tostring(objDef.sprite))
-  self.sprite = SpriteRenderer.new(spriteDef)
+  self.sprite = SpriteRenderer.new(spriteDef, self.id)
   -- object_event coordinates are already walk-grid cells
   self.cellX, self.cellY = objDef.x, objDef.y
   self.px, self.py = self.cellX * 16, self.cellY * 16

src/world/OverworldController.lua

@@ -40,6 +40,10 @@ local HEAL_BALL_XY = {
   { 40, 37 }, { 48, 37, true },
 }
 
+-- the healing machine's flash beat (FlashSprite8Times: rOBP1 ^= $28)
+-- swaps the two middle shades of the monitor/ball art in place
+local HEAL_FLASH_MAP = { [0] = 0, [1] = 2, [2] = 1, [3] = 3 }
+
 -- object_event spawn filter (toggleable_objects, items taken, beaten
 -- static encounters), shared by the current map's real NPCs and the
 -- visual-only ghosts on connected neighbor maps
@@ -91,11 +95,25 @@ local NEIGHBOR_HOPS = 2
 -- (32 px), the same alignment the connection macro encodes
 -- (macros/scripts/maps.asm: _x = offset * -2 walk cells for
 -- north/south, _y = offset * -2 for west/east).
-function OverworldState.computeNeighbors(maps, rootId, hops)
+-- reachW/reachH (optional, world pixels): with a full zoom-out the view
+-- shows far more world than the fixed hop count covers, so any map whose
+-- body could overlap the current map's rect inflated by the view
+-- half-extents joins the set (and keeps the walk going) regardless of how
+-- many connections away it sits -- otherwise far map bodies pop between
+-- real tiles and the border filler when a crossing re-roots the BFS.
+function OverworldState.computeNeighbors(maps, rootId, hops, reachW, reachH)
   local out = {}
+  local rootDef = maps[rootId]
   local placed = { [rootId] = true }
-  local queue = { { def = maps[rootId], ox = 0, oy = 0, hops = 0 } }
+  local queue = { { def = rootDef, ox = 0, oy = 0, hops = 0 } }
   local qi = 1
+  local function inReach(def, ox, oy)
+    if not (reachW and reachH and rootDef) then return false end
+    return ox + def.width * 32 > -reachW
+       and ox < rootDef.width * 32 + reachW
+       and oy + def.height * 32 > -reachH
+       and oy < rootDef.height * 32 + reachH
+  end
   while queue[qi] do
     local cur = queue[qi]
     qi = qi + 1
@@ -114,11 +132,13 @@ function OverworldState.computeNeighbors(maps, rootId, hops)
           ox, oy = cur.def.width * 32, conn.offset * 32
         end
         ox, oy = cur.ox + ox, cur.oy + oy
-        table.insert(out, { id = conn.map, ox = ox, oy = oy })
-        if cur.hops + 1 < hops then
-          table.insert(queue,
-                       { def = destDef, ox = ox, oy = oy,
-                         hops = cur.hops + 1 })
+        if cur.hops + 1 <= hops or inReach(destDef, ox, oy) then
+          table.insert(out, { id = conn.map, ox = ox, oy = oy })
+          if cur.hops + 1 < hops or inReach(destDef, ox, oy) then
+            table.insert(queue,
+                         { def = destDef, ox = ox, oy = oy,
+                           hops = cur.hops + 1 })
+          end
         end
       end
     end
@@ -200,6 +220,24 @@ function OverworldState:setMap(mapId, x, y, facing, opts)
     self.map.renderer:rebuild()
     self.cutBlocks[mapId] = nil
   end
+  -- Silph Co card key doors: the .blk layouts ship with the doorways
+  -- open; each floor's map script stamps the closed door block on load
+  -- until its unlock event is set (scripts/SilphCo2F.asm
+  -- SilphCo2FGateCallbackScript et al., closed blocks $54/$5f/$20)
+  local closedDoors = FieldDefaults.fieldValue(Game.data, "cardKeyDoors",
+                                               "closedDoors")
+  local floorDoors = closedDoors and closedDoors[mapId]
+  if floorDoors then
+    local stamped = false
+    for _, door in ipairs(floorDoors) do
+      local want = Game.save.flags[door.event] and door.open or door.block
+      if self.map:blockAt(door.bx, door.by) ~= want then
+        self.map:setBlock(door.bx, door.by, want)
+        stamped = true
+      end
+    end
+    if stamped then self.map.renderer:rebuild() end
+  end
   -- forced dismount only where riding is disallowed (IsBikeRidingAllowed,
   -- home/overworld.asm: bike_riding_tilesets.asm tilesets plus the
   -- ROUTE_23/INDIGO_PLATEAU map exceptions)
@@ -278,6 +316,13 @@ function OverworldState:setMap(mapId, x, y, facing, opts)
                                       self.player.surfing)
   end
 
+  -- forced bike/surf tiles fire the moment the player is placed on the
+  -- map, like EnterMap's unconditional CheckForceBikeOrSurf farcall
+  -- (home/overworld.asm) -- a warp can land directly on one (the Route
+  -- 16/18 gate exits), and the scripted door-mat walkout that follows
+  -- suppresses onStepComplete, so waiting for a plain step never mounts
+  self:checkForcedMovement()
+
   -- snap the camera immediately: the overworld doesn't update while a
   -- Transition is on top, so a stale camera would show the new map at
   -- the old scroll position for the whole fade-in
@@ -299,17 +344,45 @@ function OverworldState:setMap(mapId, x, y, facing, opts)
     hooks.onEnter(Game, self)
   end
 
-  -- neighbor maps drawn at the composed connection offsets, two hops
-  -- out (the GB only ever streamed a 32px strip of the single
-  -- directly connected map -- home/overworld.asm .loadNewMap)
+  self:rebuildNeighbors()
+  Logger.info("map: %s at (%d,%d)", mapId, x, y)
+  -- Route22Gate_Script rewrites wLastMap from the player's Y on entry
+  -- too (not only on step), so a save/load mid-gate keeps exits correct
+  self:syncLastMapRewrite()
+end
+
+-- Neighbor maps drawn at the composed connection offsets: at least the
+-- configured hop count out (the GB only ever streamed a 32px strip of
+-- the single directly connected map -- home/overworld.asm .loadNewMap),
+-- widened to everything the current view size can show so a full
+-- zoom-out never runs past the rendered set.  Re-run whenever the view
+-- grows (zoom/resize), not only on setMap.
+--
+-- Neighbors are built eagerly here.  A TileRenderer is now a light object --
+-- the tile layer draws windowed to the camera, so nothing per-map is
+-- constructed up front (see TileRenderer) -- so there is no build cost to
+-- amortize and no prefetch race to lose at a seam.  That is what the old
+-- one-per-frame streaming queue existed to hide, and it is gone.
+function OverworldState:rebuildNeighbors()
+  local mapId = self.map.id
   self.neighbors = {}
   local hops = FieldDefaults.world(Game.data, "neighborHops") or NEIGHBOR_HOPS
-  for _, n in ipairs(OverworldState.computeNeighbors(Game.data.maps,
-                                                     mapId, hops)) do
-    table.insert(self.neighbors,
-                 { map = MapLoader.load(Game.data, n.id),
-                   ox = n.ox, oy = n.oy })
+  local vw, vh = Game.renderer:worldViewSize()
+  self.neighborViewW, self.neighborViewH = vw, vh
+  -- resident set the eviction pass must never touch: the current map plus
+  -- every drawn neighbor
+  local keep = { [mapId] = true }
+  for _, n in ipairs(OverworldState.computeNeighbors(Game.data.maps, mapId,
+                                                     hops,
+                                                     math.floor(vw / 2) + 64,
+                                                     math.floor(vh / 2) + 64)) do
+    keep[n.id] = true
+    local m = MapLoader.load(Game.data, n.id)
+    table.insert(self.neighbors, { map = m, ox = n.ox, oy = n.oy })
   end
+  -- bound resident memory: drop maps behind us that are neither current nor
+  -- a drawn neighbor, releasing their window batch / border image / atlas
+  MapLoader.trim(keep)
 
   -- visual-only NPCs on connected maps (survey zoom): same spawn filter
   -- as a real map entry, but they never join self.entities -- no sight
@@ -328,10 +401,6 @@ function OverworldState:setMap(mapId, x, y, facing, opts)
       end
     end
   end
-  Logger.info("map: %s at (%d,%d)", mapId, x, y)
-  -- Route22Gate_Script rewrites wLastMap from the player's Y on entry
-  -- too (not only on step), so a save/load mid-gate keeps exits correct
-  self:syncLastMapRewrite()
 end
 
 -- SGB overworld palette (engine/gfx/palettes.asm SetPal_Overworld):
@@ -360,10 +429,15 @@ function OverworldState:paletteNameFor(map)
   local palettes = FieldDefaults.field(Game.data, "palettes")
   local name = map.def.palette or paletteLookup(palettes, map.id, map.def.tileset)
   if not name then
-    -- interiors inherit the outdoor map they sit in; before the player has
-    -- been outdoors at all that is wherever the game starts
+    -- Interiors inherit the outdoor map they sit in. Before the player has
+    -- been outdoors at all, that is wLastMap's zero-fill -- map 0,
+    -- PALLET_TOWN -- and NOT the spawn: the vanilla spawn (REDS_HOUSE_2F)
+    -- is itself an interior and would fall through to the ROUTE default.
+    -- defaultHeal derives the same zero-fill map (wLastBlackoutMap shares
+    -- the reasoning) and lets a total conversion redirect it.
+    local boot = (Game.data.field and Game.data.field.boot) or {}
     local last = self.lastOutdoor and self.lastOutdoor.id
-                 or FieldDefaults.fieldValue(Game.data, "boot", "startMap")
+                 or require("src.core.SaveData").defaultHeal(boot).map
     local lastDef = last and Game.data.maps[last]
     name = (last and paletteLookup(palettes, last, lastDef and lastDef.tileset))
            or palettes.default
@@ -372,7 +446,9 @@ function OverworldState:paletteNameFor(map)
   return Runtime.call("map.palette", samePalette, name, map)
 end
 
--- UI-pass palette (text boxes and menus tint with the current map)
+-- UI-pass palette (text boxes and menus tint with the current map).  OG RED
+-- resolves every name to the one global red BG palette inside PaletteFX.pal,
+-- so this needs no mode-specific branch.
 function OverworldState:sgbPalettes()
   local PaletteFX = require("src.render.PaletteFX")
   return PaletteFX.wholeNamed(Game.data, self:paletteNameFor(self.map))
@@ -383,8 +459,25 @@ end
 -- which recolored the whole screen per map -- see the survey zoom
 -- entry in docs/known-differences.md).  Border fill inherits the
 -- current map's palette.
+--
+-- RED++ true overworld coloring does NOT go through this zone/shader
+-- system at all: TileRenderer bakes real per-tile GBC colors straight into
+-- a recolored tileset atlas (see TileRenderer's gbcAtlas), and
+-- SpriteRenderer bakes sprites' OBP colors the same way, so the world
+-- canvas is already final RGB by the time this runs. Returning an EMPTY
+-- list here (when the current map has that baked atlas) skips the shader
+-- entirely -- Renderer:endFrame's blit sees zoneList[1] == nil and falls
+-- back to a plain, unshaded draw. Returning plain `nil` would NOT do this:
+-- endFrame treats a nil worldZones as "no world-specific zones, reuse the
+-- UI pass's zones" (sgbPalettes' whole-screen named-palette zone), which
+-- would re-run the DMG shade-remap over already-true-color pixels using
+-- an unrelated 4-color palette -- exactly the "colors are wrong" bug this
+-- fixes.
 function OverworldState:sgbWorldZones()
   local PaletteFX = require("src.render.PaletteFX")
+  if PaletteFX.usesGbcPack() and self.map.renderer and self.map.renderer.gbcAtlas then
+    return {}
+  end
   local base = PaletteFX.pal(Game.data, self:paletteNameFor(self.map))
   if not base then return nil end
   local vw, vh = Game.renderer:worldViewSize()
@@ -585,6 +678,14 @@ function OverworldState:update(dt)
   -- keep the player sprite in sync with the bike state (the drawer
   -- picks the red_bike sheet while riding)
   self.player.onBike = Game.save.onBike
+  -- the rendered neighbor set depends on the view size; zooming out (or
+  -- resizing) past what setMap computed re-runs the walk in place
+  if self.map and (self.neighborViewW or 0) > 0 then
+    local vw, vh = Game.renderer:worldViewSize()
+    if vw ~= self.neighborViewW or vh ~= self.neighborViewH then
+      self:rebuildNeighbors()
+    end
+  end
   if self.dustAnim then
     local da = self.dustAnim
     da.frames = da.frames - 1
@@ -593,6 +694,14 @@ function OverworldState:update(dt)
       if da.onDone then da.onDone() end
     end
   end
+  if self.cutAnim then
+    local ca = self.cutAnim
+    ca.frames = ca.frames - 1
+    if ca.frames <= 0 then
+      self.cutAnim = nil
+      if ca.onDone then ca.onDone() end
+    end
+  end
   if self.healAnim then
     local ha = self.healAnim
     local Music = require("src.core.Music")
@@ -682,6 +791,14 @@ function OverworldState:update(dt)
   end
 
   local stepped = self.player:update()
+  -- the warp-arrival cell goes stale the instant the player's real cell
+  -- leaves it, scripted walk-outs included -- pokered re-checks warps
+  -- after simulated steps too (CheckWarpsNoCollision), so a forced
+  -- door-mat exit must not leave the door permanently inert
+  local entry = self.warpEntryCell
+  if entry and (self.player.cellX ~= entry.x or self.player.cellY ~= entry.y) then
+    self.warpEntryCell = nil
+  end
   if stepped and not scripted then
     self:onStepComplete()
   end
@@ -878,8 +995,7 @@ function OverworldState:checkEdgeExit(dir)
 
   local conn = self.map:connection(COMPASS[dir])
   if conn then
-    self:crossConnection(dir, conn)
-    return true
+    return self:crossConnection(dir, conn)
   end
   return false
 end
@@ -893,7 +1009,7 @@ function OverworldState:crossConnection(dir, conn)
   local dest = Game.data.maps[conn.map]
   if not dest then
     Logger.warn("connection to unknown map %s", tostring(conn.map))
-    return
+    return false
   end
   local p = self.player
   local x, y = p.cellX, p.cellY
@@ -909,6 +1025,15 @@ function OverworldState:crossConnection(dir, conn)
   end
   x = math.max(0, math.min(destW - 1, x))
   y = math.max(0, math.min(destH - 1, y))
+  -- pokered's collision check reads the NEIGHBOR strip's tile bytes, so
+  -- stepping off the edge onto a solid tile of the connected map bumps
+  -- exactly like an in-map wall. Without this read, Pallet's south
+  -- shore (land at x2-3) walked straight onto ROUTE_21 (3,0) -- a
+  -- collision tile -- stranding the player on a cell no walk can leave.
+  if not Map.defPassable(dest, Game.data.tilesets[dest.tileset], x, y,
+                         p.surfing) then
+    return false
+  end
   self:setMap(conn.map, x, y, p.facing, { seamless = true })
   -- place the player one cell before the seam (their old world spot,
   -- which the neighbor strip renders identically) and start the step
@@ -926,6 +1051,7 @@ function OverworldState:crossConnection(dir, conn)
   p.stepFramesCur = Game.save.onBike
     and (FieldDefaults.world(Game.data, "bikeStepFrames") or 8)
     or (FieldDefaults.world(Game.data, "stepFrames") or 16)
+  return true
 end
 
 -- -------------------------------------------------------------------------
@@ -1017,7 +1143,7 @@ function OverworldState:goFishing(rod)
       if Game.save.safari and Map.inRegion(self.map.def, "SAFARI", "SAFARI_ZONE") then
         battle:makeSafari(Game.save.safari)
       end
-      battle.onFinish = function(result) self:afterBattle(result) end
+      battle.onFinish = function(result) self:afterBattle(result, battle) end
       self:pushBattle(battle)
     end))
   end))
@@ -1241,6 +1367,14 @@ function OverworldState:tryHiddenObject(fx, fy)
     end
   end
 
+  -- Bill's cell-separator PC (data/events/hidden_events.asm: hidden_event
+  -- 1,4 BillsHousePC SPRITE_FACING_UP)
+  if self.map.id == "BILLS_HOUSE" and fx == 1 and fy == 4
+     and self.player.facing == "up" then
+    self:billsHousePC()
+    return true
+  end
+
   local extras = field.hiddenExtras
   if not extras then return false end
   local facing = self.player.facing
@@ -1323,7 +1457,18 @@ function OverworldState:tryCardKeyDoor(fx, fy)
     return true
   end
   require("src.core.Sound").play(Game.data, "Go_Inside")
-  self:replaceBlock(math.floor(fx / 2), math.floor(fy / 2), openBlock)
+  local bx, by = math.floor(fx / 2), math.floor(fy / 2)
+  self:replaceBlock(bx, by, openBlock)
+  -- opened doors stay open across reloads (the per-door unlock events
+  -- the floors' gate callbacks check, EVENT_SILPH_CO_n_UNLOCKED_DOOR*)
+  local closedDoors = FieldDefaults.fieldValue(Game.data, "cardKeyDoors",
+                                               "closedDoors")
+  for _, door in ipairs(closedDoors and closedDoors[self.map.id] or {}) do
+    if door.bx == bx and door.by == by then
+      Game.save.flags[door.event] = true
+      break
+    end
+  end
   Game.stack:push(TextBox.new(Game,
     (t._CardKeySuccessText1 or "Bingo!")
     .. (t._CardKeySuccessText2 or "\nThe CARD KEY\nopened the door!")))
@@ -1425,6 +1570,71 @@ function OverworldState:trashCanSwitch(canIndex)
   end
 end
 
+-- Bill's House PC (engine/events/hidden_events/bills_house_pc.asm
+-- BillsHousePC): once Bill-the-Pokémon has climbed into the machine
+-- (EVENT_BILL_SAID_USE_CELL_SEPARATOR), running the PC plays the cell
+-- separator's SFX sequence, sets EVENT_USED_CELL_SEPARATOR_ON_BILL and
+-- Bill steps back out of the machine human again
+-- (BillsHouseBillExitsMachineScript / CleanupScript set EVENT_MET_BILL).
+function OverworldState:billsHousePC()
+  local t = Game.data.text
+  local flags = Game.save.flags
+  if not (flags.EVENT_BILL_SAID_USE_CELL_SEPARATOR
+          and not flags.EVENT_USED_CELL_SEPARATOR_ON_BILL) then
+    Game.stack:push(TextBox.new(Game, t._BillsHouseMonitorText
+      or "TELEPORTER is\ndisplayed on the\nPC monitor."))
+    return
+  end
+  require("src.core.Music").stop()
+  Game.stack:push(TextBox.new(Game, t._BillsHouseInitiatedText
+    or "{PLAYER} initiated\nTELEPORTER's Cell\nSeparator!", function()
+    flags.EVENT_USED_CELL_SEPARATOR_ON_BILL = true
+    require("src.core.Sound").play(Game.data, "Switch")
+    self:queueScript({
+      { "wait", 32 },
+      { "play_sound", "Tink" },
+      { "wait", 80 },
+      { "play_sound", "Shrink" },
+      { "wait", 48 },
+      { "play_sound", "Tink" },
+      { "wait", 32 },
+      { "play_sound", "Get_Item1" },
+      { "wait", 30 },
+    }, { onDone = function() self:billsHouseBillExits() end })
+  end))
+end
+
+-- BillsHouseBillExitsMachineScript: human Bill appears inside the machine
+-- at (1,2) and walks out to his spot at (4,4); the map music resumes and
+-- EVENT_MET_BILL / EVENT_MET_BILL_2 arm the SS-Ticket dialogue.
+function OverworldState:billsHouseBillExits()
+  local Commands = require("src.script.Commands")
+  local ctx = { game = Game, save = Game.save, overworld = self }
+  Commands.show_object(ctx, "BILLS_HOUSE", "BILLSHOUSE_BILL1")
+  local function done()
+    Game.save.flags.EVENT_MET_BILL = true
+    Game.save.flags.EVENT_MET_BILL_2 = true
+    require("src.core.Music").playMap(Game.data, self.map.id,
+                                      Game.save.onBike, self.player.surfing)
+  end
+  local bill
+  for _, n in ipairs(self.npcs) do
+    if n.def and n.def.name == "BILLSHOUSE_BILL1" then bill = n break end
+  end
+  if not (bill and self.map.id == "BILLS_HOUSE") then
+    done()
+    return
+  end
+  bill.cellX, bill.cellY = 1, 2
+  bill.px, bill.py = 16, 32
+  bill.facing = "down"
+  self:scriptMove(bill, "down", 1, function()
+    self:scriptMove(bill, "right", 3, function()
+      self:scriptMove(bill, "down", 1, done)
+    end)
+  end)
+end
+
 -- Any hidden item still unfound NEAR the player? (the ITEMFINDER,
 -- engine/items/itemfinder.asm HiddenItemNear: coord > clamp0(player-5)
 -- and coord <= player+4 (Y) / player+5 (X) -- the clamp excludes
@@ -1501,13 +1711,30 @@ function OverworldState:trySurf(fx, fy)
 end
 
 function OverworldState:tryCut(fx, fy)
+  -- UsedCut (engine/overworld/cut.asm) gates on the TILESET before
+  -- anything else: only OVERWORLD (tree tile $3d) and GYM (plant tile
+  -- $50) have cuttable anything. Matching raw block ids alone
+  -- false-positives on every other tileset -- block ids are only
+  -- meaningful within one tileset, so Route 23 (PLATEAU) had blocks
+  -- matching a swap's `before`, and applying it wrote a block id that
+  -- does not exist in PLATEAU's block table: the renderer indexed nil
+  -- and the game crashed. The same false match is what made the bot
+  -- chain-cut "ornamental bushes" around Saffron and Celadon.
+  local ts = self.map.def.tileset
+  local tile = self.map:cellTile(fx, fy)
+  local isGrass = (ts == "OVERWORLD" and tile == 0x52)
+  if not ((ts == "OVERWORLD" and tile == 0x3d)
+          or (ts == "GYM" and tile == 0x50)
+          or isGrass) then
+    return false
+  end
   local bx, by = math.floor(fx / 2), math.floor(fy / 2)
   local block = self.map:blockAt(bx, by)
   local swap
   for _, sw in ipairs(Game.data.field.cutTreeSwaps) do
     if sw.before == block then swap = sw break end
   end
-  if not swap or self.map:isWalkableCell(fx, fy) then return false end
+  if not swap or (not isGrass and self.map:isWalkableCell(fx, fy)) then return false end
   local mon = self:partyKnows("CUT")
   if not mon then return false end
   -- gen 1 confirms nothing (engine/overworld/cut.asm UsedCut): the
@@ -1522,13 +1749,37 @@ function OverworldState:tryCut(fx, fy)
                  { bx = bx, by = by, block = block })
     self.map:setBlock(bx, by, swap.after)
     self.map.renderer:rebuild()
-    self:startDustAnim(fx, fy, function()
+    local finish = function()
       require("src.core.Sound").play(Game.data, "Cut")
-    end)
+    end
+    if isGrass then
+      -- AnimCut .grass: tall grass gets the leaf-swirl / dust puff, not
+      -- the tree-split slide
+      self:startDustAnim(fx, fy, finish)
+    elseif ts == "OVERWORLD" then
+      -- the tree splits in half and slides apart (AnimCut .cutTreeLoop);
+      -- the GYM plant keeps the shared dust/leaf puff
+      self:startCutTreeAnim(fx, fy, finish)
+    else
+      self:startDustAnim(fx, fy, finish)
+    end
   end))
   return true
 end
 
+-- The cut-tree split (engine/overworld/cut.asm InitCutAnimOAM +
+-- engine/overworld/cut2.asm AnimCut): the tree sprite's top half slides
+-- +1px and its bottom half -1px per frame for 8 frames, flickering,
+-- before the swapped block shows through.  Falls back to the dust puff
+-- when the extracted tree sprite is unavailable.
+function OverworldState:startCutTreeAnim(cx, cy, onDone)
+  local fxDef = Game.data.field.overworldFx
+  if not (fxDef and fxDef.cutTree) then
+    return self:startDustAnim(cx, cy, onDone)
+  end
+  self.cutAnim = { x = cx, y = cy, frames = 8, total = 8, onDone = onDone }
+end
+
 -- Party-menu SURF entry (start_sub_menus.asm .surf): badge-check SOULBADGE,
 -- farcall IsSurfingAllowed, then UseItem(SURFBOARD) -> ItemUseSurfboard
 -- (item_effects.asm), which either tries to dismount (already surfing) or
@@ -1586,13 +1837,24 @@ function OverworldState:useCutFieldMove()
   if not self:partyKnows("CUT") then return "no_badge" end
   local fx, fy = self.player:facingCell()
   if not self.map:inBounds(fx, fy) then return "nothing" end
+  -- same tileset/tile gate as tryCut (UsedCut, engine/overworld/cut.asm):
+  -- a tree BLOCK also contains fence/path cells, and facing those is
+  -- "nothing to cut" in vanilla
+  local ts = self.map.def.tileset
+  local tile = self.map:cellTile(fx, fy)
+  local isGrass = (ts == "OVERWORLD" and tile == 0x52)
+  if not ((ts == "OVERWORLD" and tile == 0x3d)
+          or (ts == "GYM" and tile == 0x50)
+          or isGrass) then
+    return "nothing"
+  end
   local bx, by = math.floor(fx / 2), math.floor(fy / 2)
   local block = self.map:blockAt(bx, by)
   local swap
   for _, sw in ipairs(Game.data.field.cutTreeSwaps) do
     if sw.before == block then swap = sw break end
   end
-  if not swap or self.map:isWalkableCell(fx, fy) then return "nothing" end
+  if not swap or (not isGrass and self.map:isWalkableCell(fx, fy)) then return "nothing" end
   return "ok"
 end
 
@@ -1649,7 +1911,7 @@ function OverworldState:talkTo(npc)
             if e == npc then table.remove(self.entities, i) break end
           end
         end
-        self:afterBattle(result)
+        self:afterBattle(result, battle)
         unfreeze()
       end
       self:pushBattle(battle)
@@ -1764,9 +2026,11 @@ function OverworldState:openPC(onDone)
   end
   table.insert(items, { label = "LOG OFF", onSelect = logOff })
   -- pokered sets BIT_NO_MENU_BUTTON_SOUND for the whole PC session
-  -- (engine/overworld/pokecenter_pc.asm / player_pc.asm)
+  -- (engine/overworld/pokecenter_pc.asm / player_pc.asm); DisplayPCMainMenu
+  -- calls TextBoxBorder with c=14 (interior width, +2 for the border), so
+  -- tw here (total width) is 16
   Game.stack:push(Menu.new(Game, items,
-    { tx = 0, ty = 0, tw = 14, th = #items * 2 + 2, onCancel = logOff,
+    { tx = 0, ty = 0, tw = 16, th = #items * 2 + 2, onCancel = logOff,
       noSound = true }))
 end
 
@@ -1967,7 +2231,7 @@ function OverworldState:engageTrainer(npc, onDone)
         end
         self:checkVictoryRewards(d.trainerClass, d.trainerParty)
         local after = function()
-          self:afterBattle(result)
+          self:afterBattle(result, battle)
           if onDone then onDone() end
         end
         if wonText then
@@ -1976,7 +2240,7 @@ function OverworldState:engageTrainer(npc, onDone)
           after()
         end
       else
-        self:afterBattle(result)
+        self:afterBattle(result, battle)
         if onDone then onDone() end
       end
     end
@@ -1985,6 +2249,8 @@ function OverworldState:engageTrainer(npc, onDone)
 end
 
 -- Badges/items awarded after specific battles (data/scripts/victories.lua).
+-- `deactivate` retires unfought gym/dojo trainers the way the originals'
+-- SetEvent / SetEventRange do after the leader victory.
 function OverworldState:checkVictoryRewards(trainerClass, partyIndex)
   local victories = require("data.scripts.victories")
   local reward = victories[trainerClass .. "#" .. tostring(partyIndex or 1)]
@@ -1993,6 +2259,11 @@ function OverworldState:checkVictoryRewards(trainerClass, partyIndex)
     if Game.save.flags[reward.flag] then return self:runVictoryHook() end
     Game.save.flags[reward.flag] = true
   end
+  if reward.deactivate then
+    for _, flag in ipairs(reward.deactivate) do
+      Game.save.flags[flag] = true
+    end
+  end
   local lines = {}
   if reward.badge then
     Game.save.inventory[reward.badge] = 1
@@ -2275,8 +2546,19 @@ function OverworldState:onStepComplete()
   -- arriving on a door/warp tile warp; a non-door warp square also fires
   -- when the extra check passes and the d-pad is held
   -- (CheckWarpsNoCollision)
+  -- The cell we warped in on is inert until we step off it: standing on it,
+  -- or being walked back onto it before leaving, does not re-fire (see
+  -- warpEntryCell where it is set). Once we are on any other cell it clears
+  -- and every warp is live again.
+  local entry = self.warpEntryCell
+  if entry and (p.cellX ~= entry.x or p.cellY ~= entry.y) then
+    self.warpEntryCell = nil
+    entry = nil
+  end
   if self.justWarped then
     self.justWarped = false
+  elseif entry then
+    -- still standing on the warp we arrived through; do not re-trigger it
   else
     local w = Warp.onArrive(self.map, p.cellX, p.cellY)
     if not w and self:dirHeld() then
@@ -2332,7 +2614,7 @@ function OverworldState:onStepComplete()
     if Game.save.safari and Map.inRegion(self.map.def, "SAFARI", "SAFARI_ZONE") then
       battle:makeSafari(Game.save.safari)
     end
-    battle.onFinish = function(result) self:afterBattle(result) end
+    battle.onFinish = function(result) self:afterBattle(result, battle) end
     self:pushBattle(battle)
     return
   end
@@ -2665,7 +2947,9 @@ function OverworldState:safariGameOver(text)
 end
 
 -- Blackouts return to the last heal point; evolutions run after battles.
-function OverworldState:afterBattle(result)
+-- battle is optional; when given, Oak's Lab OPP_RIVAL1 losses skip the
+-- blackout (pret HandlePlayerBlackOut) so the map script can HealParty.
+function OverworldState:afterBattle(result, battle)
   local lead = Game.save.party[1]
   Logger.info("battle over: %s (lead %s %d/%d)", tostring(result),
               lead and lead.species or "-", lead and lead.hp or 0,
@@ -2675,6 +2959,13 @@ function OverworldState:afterBattle(result)
     Evolution.checkParty(Game)
   end
   if result == "lose" then
+    local oaksLabRival = battle and battle.oppClass == "OPP_RIVAL1"
+      and self.map and self.map.id == "OAKS_LAB"
+    if oaksLabRival then
+      -- stay in the lab; OaksLabRivalEndBattleScript heals and continues
+      evolutions()
+      return
+    end
     -- blackout: revive the party at the last heal point; half the
     -- money is lost (like the original)
     local Pokemon = require("src.pokemon.Pokemon")
@@ -2723,6 +3014,25 @@ function OverworldState:takeWarp(warpDef)
   -- facing carries across the warp (leaving a gate sideways keeps you
   -- walking sideways; house exit mats are stepped onto facing down)
   local facing = self.player.facing
+  -- warp pads and fall-through holes are not doors (WarpFound2
+  -- .indoorMaps: IsPlayerStandingOnWarpPadOrHole routes them through
+  -- LeaveMapAnim/EnterMapAnim instead of the door SFX)
+  local pad = self.map.warpPadOrHoleAt
+              and self.map:warpPadOrHoleAt(self.player.cellX, self.player.cellY)
+  if pad == "pad" then
+    -- teleporter: spin out with the exit SFX, spin back in on arrival
+    -- (player_animations.asm _LeaveMapAnim / EnterMapAnim)
+    require("src.core.Sound").play(Game.data, "Teleport_Exit1")
+    self.player.spinning = true
+    self.player.spinTimer = 0
+    self.arriveWarp = "teleport"
+    self:startWarpTo(destMap, x, y, facing)
+    return
+  elseif pad == "hole" then
+    -- falling through a hole: no door SFX, no walk-out step
+    self:startWarpTo(destMap, x, y, facing)
+    return
+  end
   self.doorWarp = true -- door SFX + outdoor walk-out step
   self:startWarpTo(destMap, x, y, facing)
 end
@@ -2777,6 +3087,12 @@ function OverworldState:startWarpTo(mapId, x, y, facing, onDone, opts)
   Game.stack:push(Transition.new(Game, function()
     self:setMap(mapId, x, y, facing or "down", opts)
     self.justWarped = true
+    -- The warp we land ON stays inert until we physically step off it, so a
+    -- warp whose destination cell is itself a warp cannot bounce us straight
+    -- back (elevator cars, stacked stair/door mats). This generalizes the
+    -- one-step justWarped guard, which only skipped the very next frame's
+    -- check and so let a mon walked back onto the pad re-trigger it.
+    self.warpEntryCell = { x = x, y = y }
     -- Fly/Teleport/Dig/Escape-Rope/blackout landings poof the player
     -- back in (player_animations.asm EnterMapAnim); ordinary door
     -- warps never take this branch
@@ -2786,14 +3102,26 @@ function OverworldState:startWarpTo(mapId, x, y, facing, onDone, opts)
       require("src.core.Sound").play(Game.data, "Teleport_Enter1")
       -- ENTER_2 caps the spin-down a moment later
       self.delaySfx = { frames = 40, key = "Teleport_Enter2" }
+      -- the sprite spins down into place (EnterMapAnim
+      -- PlayerSpinWhileMovingDown), not just the SFX
+      self.player.spinning = true
+      self.player.spinTimer = 0
+      self.player.spinFrames = 48
+      self.player.spinTotal = 48
+      self.player.spinDrop = true
     end
     if doorWarp then
       local outdoor = Map.isOutdoor(self.map.def)
       require("src.core.Sound").play(Game.data,
                                      outdoor and "Go_Outside" or "Go_Inside")
-      -- stepping out of an outdoor door mat (the original's walk-out)
+      -- stepping out of an outdoor door/cave entrance (the original's
+      -- walk-out). Auto-walk leaves the mat, so the arrival disable
+      -- (warpEntryCell / justWarped) is unnecessary -- and would let you
+      -- stand on the door without re-entering if you hold back into it.
       if outdoor and self.player.facing == "down"
          and self.map:isWarpTileCell(self.player.cellX, self.player.cellY) then
+        self.warpEntryCell = nil
+        self.justWarped = false
         self:scriptMove(self.player, "down", 1)
       end
     end
@@ -3032,9 +3360,9 @@ function OverworldState:drawWorld()
   -- reorder (no draws), so they run once for both paths.
   local tilt = Tilt.active()
   self.map.renderer:drawBorderFill(cam.x, bgY, vw, vh)
-  self.map.renderer:draw(cam.x, bgY)
+  self.map.renderer:draw(cam.x, bgY, vw, vh)
   for _, nb in ipairs(self.neighbors) do
-    nb.map.renderer:drawMapOnly(cam.x - nb.ox, bgY - nb.oy)
+    nb.map.renderer:drawMapOnly(cam.x - nb.ox, bgY - nb.oy, vw, vh)
   end
   -- per-billboard SGB palette source; only needed (and only paid for) when
   -- tilting.  nil headless / on stale palettes -> billboards go uncolorized.
@@ -3058,7 +3386,7 @@ function OverworldState:drawWorld()
   -- at (64,64); anchoring those coords to where the player stood keeps
   -- the overlay on the machine at any zoom.
   local function fxHeal()
-    if not (self.healAnim and self.healAnim.visible) then return end
+    if not self.healAnim then return end
     local ha = self.healAnim
     local fxDef = Game.data.field.overworldFx
     if self.healMachineImg == nil and fxDef and fxDef.healMachine then
@@ -3074,8 +3402,24 @@ function OverworldState:drawWorld()
           love.graphics.newQuad(0, 8, 8, 8, w, h), -- ball ($7d)
         }
       end
-      local ox = ha.px - 64 - cam.x
-      local oy = ha.py - 64 - cam.y
+      -- the jingle flash recolors the machine sprites in place
+      -- (FlashSprite8Times XORs rOBP1; the sprites never disappear):
+      -- ha.visible == false is the flashed half of each beat, drawn with
+      -- the light/dark shades swapped instead of skipped
+      local shader
+      if not ha.visible then
+        shader = PaletteFX.shader()
+        if shader then
+          PaletteFX.sendColors(shader,
+            PaletteFX.permute(PaletteFX.GRAYS, HEAL_FLASH_MAP))
+          love.graphics.setShader(shader)
+        end
+      end
+      -- TileRenderer windows with -floor(cam), so the overlay must use the
+      -- same snap or a fractional camera (odd fill/tilt view sizes) parks
+      -- the balls a pixel off the machine tiles
+      local ox = ha.px - 64 - math.floor(cam.x)
+      local oy = ha.py - 64 - math.floor(cam.y)
       love.graphics.setColor(1, 1, 1, 1)
       love.graphics.draw(img, self.healMachineQuads[1], ox + 44, oy + 20)
       for i = 1, math.min(ha.lit, #HEAL_BALL_XY) do
@@ -3088,6 +3432,7 @@ function OverworldState:drawWorld()
                              ox + b[1], oy + b[2])
         end
       end
+      if shader then love.graphics.setShader() end
     end
   end
 
@@ -3118,6 +3463,37 @@ function OverworldState:drawWorld()
     end
   end
 
+  -- the cut tree splitting apart (AnimCut): top half slides right,
+  -- bottom half slides left, 1px per frame, flickering as they go
+  local function fxCutTree()
+    if not self.cutAnim then return end
+    local fxDef = Game.data.field.overworldFx
+    local tree = fxDef and fxDef.cutTree
+    if not tree then return end
+    if self.cutTreeImg == nil then
+      local ok, img = pcall(love.graphics.newImage, tree.path)
+      self.cutTreeImg = ok and img or false
+    end
+    local img = self.cutTreeImg
+    if not img then return end
+    if not self.cutTreeQuads then
+      local w, h = img:getWidth(), img:getHeight()
+      self.cutTreeQuads = {
+        love.graphics.newQuad(0, 0, 16, 8, w, h), -- top half
+        love.graphics.newQuad(0, 8, 16, 8, w, h), -- bottom half
+      }
+    end
+    local ca = self.cutAnim
+    local off = (ca.total or 8) - ca.frames
+    local dx = ca.x * 16 - cam.x
+    local dy = ca.y * 16 - cam.y
+    local flicker = ca.frames % 2 == 0
+    love.graphics.setColor(1, 1, 1, flicker and 1 or 0.55)
+    love.graphics.draw(img, self.cutTreeQuads[1], dx + off, dy)
+    love.graphics.draw(img, self.cutTreeQuads[2], dx - off, dy + 8)
+    love.graphics.setColor(1, 1, 1, 1)
+  end
+
   -- the "!" bubble above a trainer who spotted the player
   local function fxEmote()
     if not (self.emote and self.emote.npc) then return end
@@ -3133,11 +3509,21 @@ function OverworldState:drawWorld()
       end)
       -- EXCLAMATION_BUBBLE is index 0 -> first crop; the emote command
       -- picks question/happy crops instead
-      local rect = bubble.bubbles and bubble.bubbles[self.emote.bubble or 1]
+      local bi = self.emote.bubble or 1
+      local rect = bubble.bubbles and bubble.bubbles[bi]
       if ok and img and rect then
         love.graphics.setColor(1, 1, 1, 1)
-        love.graphics.draw(img, love.graphics.newQuad(rect.x, rect.y,
-                           rect.w, rect.h, img:getDimensions()), ex, ey)
+        -- one Quad per bubble crop, cached: this draws every frame the "!"
+        -- (or the emote-command crops) is up, so a fresh Quad here churned
+        -- the GC.  The bubble set is small and fixed, so the cache is bounded.
+        self.emoteQuads = self.emoteQuads or {}
+        local q = self.emoteQuads[bi]
+        if not q then
+          q = love.graphics.newQuad(rect.x, rect.y, rect.w, rect.h,
+                                    img:getDimensions())
+          self.emoteQuads[bi] = q
+        end
+        love.graphics.draw(img, q, ex, ey)
         drawn = true
       end
     end
@@ -3209,6 +3595,11 @@ function OverworldState:drawWorld()
 
   if not tilt then
     -- === FLAT PATH: everything into the one world canvas, as before =====
+    -- OBP-baked sprites replay after the zone pass in GBC mode, so their
+    -- grass feet-overdraw must replay over them too, colorized with the
+    -- current map's palette (see PaletteFX.markSpriteRedraw)
+    local grassColors = PaletteFX.usesSpriteObp()
+      and PaletteFX.pal(Game.data, self:paletteNameFor(self.map)) or nil
     for _, g in ipairs(self.ghosts) do
       g.npc:draw(cam.x - g.ox, cam.y - g.oy)
     end
@@ -3220,14 +3611,23 @@ function OverworldState:drawWorld()
         love.graphics.setColor(1, 1, 1, 1)
         if self.map:isGrassCell(e.cellX, e.cellY) then
           self.map.renderer:drawCellBottom(e.cellX, e.cellY, cam.x, bgY)
+          if grassColors then
+            self.map.renderer:markCellBottomRedraw(e.cellX, e.cellY,
+                                                   cam.x, bgY, grassColors)
+          end
         end
         if e.targetX and self.map:isGrassCell(e.targetX, e.targetY) then
           self.map.renderer:drawCellBottom(e.targetX, e.targetY, cam.x, bgY)
+          if grassColors then
+            self.map.renderer:markCellBottomRedraw(e.targetX, e.targetY,
+                                                   cam.x, bgY, grassColors)
+          end
         end
       end
     end
     fxHeal()
     fxDust()
+    fxCutTree()
     fxEmote()
     fxDark()
     fxBird()
@@ -3235,12 +3635,15 @@ function OverworldState:drawWorld()
   else
     -- === TILT PATH: ground-hugging FX stay on the projected ground, all
     -- standing things billboard upright over it in a separate pass. ======
-    -- Dust is ground-hugging smoke -> ground canvas (puts it
-    -- with the flat layer, so it projects with the ground).  Flat mode
-    -- draws it last, over the sprites, in the same canvas; here the two
+    -- Dust / cut / the Poké Center heal overlay hug the BG (the heal
+    -- machine is a tileset graphic; its OAM balls must ride that plane or
+    -- they float off the machine once the ground foreshortens).  Flat mode
+    -- draws them last, over the sprites, in the same canvas; here the two
     -- layers are separate and composited ground-under-upright, so drawing
-    -- it now into the still-active ground canvas is order-equivalent.
+    -- them now into the still-active ground canvas is order-equivalent.
+    fxHeal()
     fxDust()
+    fxCutTree()
 
     Game.renderer:beginUprightPass()
 
@@ -3294,18 +3697,11 @@ function OverworldState:drawWorld()
       end
     end
 
-    -- Screen-anchored world FX : each billboards at the
-    -- ground foot of the character it belongs to, so it stands upright and
-    -- scales with that character's depth.
-    --   heal machine  -> the healed player's foot (the machine stands on
-    --                    the ground in front of where the player was)
+    -- Standing world FX: each billboards at the ground foot of the
+    -- character it belongs to, so it stays upright over the tilted ground.
     --   emote bubble  -> the spotting NPC's foot (rides above its head)
     --   fly bird, rod -> the player's foot
-    if self.healAnim and self.healAnim.visible then
-      local fx = self.healAnim.px - cam.x + 8
-      local fy = self.healAnim.py - cam.y + 16
-      self:billboard(fx, fy, vw, vh, zoneColorsAt(zones, fx, fy), false, fxHeal)
-    end
+    -- (heal machine is ground-hugging -- drawn above with dust/cut)
     if self.emote and self.emote.npc then
       local fx = self.emote.npc.px - cam.x + 8
       local fy = self.emote.npc.py - cam.y + 16

src/world/Player.lua

@@ -26,12 +26,12 @@ function Player.new(data, cx, cy, facing)
   local walkId = FieldDefaults.fieldValue(data, "playerSprites", "walk")
   local surfId = FieldDefaults.fieldValue(data, "playerSprites", "surf")
   local bikeId = FieldDefaults.fieldValue(data, "playerSprites", "bike")
-  self.sprite = SpriteRenderer.new(data.sprites[walkId])
+  self.sprite = SpriteRenderer.new(data.sprites[walkId], "player")
   if surfId and data.sprites[surfId] then
-    self.surfSprite = SpriteRenderer.new(data.sprites[surfId])
+    self.surfSprite = SpriteRenderer.new(data.sprites[surfId], "player")
   end
   if bikeId and data.sprites[bikeId] then
-    self.bikeSprite = SpriteRenderer.new(data.sprites[bikeId])
+    self.bikeSprite = SpriteRenderer.new(data.sprites[bikeId], "player")
   end
   -- the ledge-hop shadow quarter-tile (gfx/overworld/shadow.png,
   -- LedgeHoppingShadow, engine/overworld/ledges.asm)
@@ -84,9 +84,21 @@ function Player:update()
   if self.turnTimer > 0 then
     self.turnTimer = self.turnTimer - 1
   end
+  if self.spinFrames then
+    self.spinFrames = self.spinFrames - 1
+    if self.spinFrames <= 0 then
+      self.spinFrames = nil
+      self.spinDrop = nil
+      self.spinning = false
+    end
+  end
   if not self.moving then return false end
   local stepLen = self.stepFramesCur or self.stepFrames or STEP_FRAMES
   self.progress = self.progress + 1
+  -- the walk-cycle clock ticks once per real frame while moving, so the
+  -- leg cadence stays constant when the bike halves stepFramesCur (only
+  -- translation speed doubles, like UpdatePlayerSprite's frame counters)
+  self.animClock = (self.animClock or 0) + 1
   local d = Collision.DELTA[self.facing]
   local px = math.floor(self.progress * 16 / stepLen)
   self.px = self.cellX * 16 + d[1] * px
@@ -108,8 +120,8 @@ end
 
 function Player:walkPhase()
   if not self.moving then return 0 end
-  -- walk frame during the middle of the step
-  local p = self.progress % 16
+  -- walk frame during the middle of each 16-frame animation cycle
+  local p = (self.animClock or self.progress) % 16
   return (p >= 4 and p < 12) and 1 or 0
 end
 
@@ -139,15 +151,26 @@ function Player:draw(camX, camY)
     py = py + (self.bobTimer < 16 and 0 or 1)
   end
   local facing = self.facing
+  local phase = self:walkPhase()
+  -- alternate walk cycles mirror the up/down frame; derived from the
+  -- fixed-rate animation clock so the bike's shorter steps don't double
+  -- the leg cadence
+  local flip = math.floor((self.animClock or 0) / 16) % 2 == 1
   if self.spinning then
-    -- spinner tiles whirl the sprite (PlayerSpinningFacingOrder)
+    -- spinner tiles whirl the sprite on its standing pose, one facing
+    -- per frame (LoadSpinnerArrowTiles runs every OverworldLoop frame)
     self.spinTimer = (self.spinTimer or 0) + 1
-    facing = SPIN_ORDER[math.floor(self.spinTimer / 4) % 4 + 1]
+    facing = SPIN_ORDER[self.spinTimer % 4 + 1]
+    phase, flip = 0, false
+    -- teleport arrivals spin the sprite down into place
+    -- (EnterMapAnim PlayerSpinWhileMovingDown)
+    if self.spinFrames and self.spinDrop then
+      py = py - math.floor(self.spinFrames * 24 / (self.spinTotal or 64))
+    end
   end
   local sprite = (self.surfing and self.surfSprite)
                  or (self.onBike and self.bikeSprite) or self.sprite
-  sprite:draw(self.px, py, camX, camY, facing,
-              self:walkPhase(), self.stepFlip)
+  sprite:draw(self.px, py, camX, camY, facing, phase, flip)
 end
 
 return Player

tests/drivers/hof_pc_test.lua

@@ -0,0 +1,69 @@
+-- Driver: the Hall of Fame recording-machine "PC".  Teleports into the
+-- HALL_OF_FAME room, faces the console jutting from the north wall, and
+-- exercises the injected TEXT_HALLOFFAME_PC sign both ways: NO leaves the
+-- player in the room, YES warps home to the new-game bedroom spawn
+-- (REDS_HOUSE_2F, 3, 6).  Screenshots the prompt and the arrival.
+
+return function(game)
+  local U = dofile("tests/drivers/util.lua")
+  local DIR = os.getenv("SHOT_DIR") or "/tmp/shots"
+  local TextBox = require("src.render.TextBox")
+  local ChoiceBox = require("src.ui.ChoiceBox")
+
+  local pass = true
+  local function check(cond, msg)
+    if cond then U.log("PASS: " .. msg) else pass = false; U.log("FAIL: " .. msg) end
+  end
+  local function topIs(mt) return getmetatable(game.stack:top()) == mt end
+
+  -- press A to advance the ask text until the YES/NO box is on top
+  local function openChoice()
+    for _ = 1, 120 do
+      if topIs(ChoiceBox) then return true end
+      if topIs(TextBox) then U.tap(game, "a") end
+      U.wait(3)
+    end
+    return false
+  end
+
+  -- stand at (4,2) facing up: the console solid cell (4,1) is dead ahead
+  U.teleport(game, "HALL_OF_FAME", 4, 2, "up")
+  local ow = game.overworld
+  local fx, fy = ow.player:facingCell()
+  U.log(("at (%d,%d) facing %s -> facing cell (%d,%d)"):format(
+        ow.player.cellX, ow.player.cellY, ow.player.facing, fx, fy))
+  check(ow.map:signAtCell(fx, fy) ~= nil, "a sign sits on the console tile")
+
+  -- ---- NO: prompt appears, player stays in the Hall of Fame ----
+  U.tap(game, "a") -- interact -> ask
+  U.wait(4)
+  check(openChoice(), "NO run: YES/NO prompt opened")
+  U.shot(game, DIR .. "/hof_pc_1_prompt.png")
+  U.tap(game, "down") -- cursor YES -> NO
+  U.wait(2)
+  U.tap(game, "a") -- confirm NO
+  U.wait(20)
+  check(ow.map.id == "HALL_OF_FAME", "NO keeps the player in HALL_OF_FAME")
+
+  -- ---- YES: warp back to the bedroom spawn ----
+  U.teleport(game, "HALL_OF_FAME", 4, 2, "up")
+  ow = game.overworld
+  U.tap(game, "a")
+  U.wait(4)
+  check(openChoice(), "YES run: YES/NO prompt opened")
+  U.tap(game, "a") -- YES (default cursor)
+  local warped = false
+  for _ = 1, 300 do
+    if ow.map.id == "REDS_HOUSE_2F" and not ow.transitioning then warped = true; break end
+    U.wait(2)
+  end
+  U.log(("after YES: map=%s pos=(%d,%d) facing=%s"):format(
+        ow.map.id, ow.player.cellX, ow.player.cellY, ow.player.facing))
+  U.wait(10)
+  U.shot(game, DIR .. "/hof_pc_2_home.png")
+  check(warped, "YES warps to REDS_HOUSE_2F")
+  check(ow.player.cellX == 3 and ow.player.cellY == 6,
+        "landed on the bedroom spawn (3,6)")
+
+  U.log(pass and "RESULT: ALL PASS" or "RESULT: SEE FAILURES ABOVE")
+end

tests/drivers/ogred_battle_test.lua

@@ -0,0 +1,48 @@
+-- Visual test: SQUIRTLE (player) vs BULBASAUR (enemy) in OG RED, to match
+-- the Game Boy Color hardware capture.  Run with a display:
+--
+--   SHOT_DIR=/tmp/ogred POKEPORT_IDENTITY=pokeport-ogred-shot \
+--     POKEPORT_DRIVER=tests/drivers/ogred_battle_test.lua love .
+--
+-- Captures ogred_0{1..5}_*.png into SHOT_DIR.  OG RED is a global palette:
+-- red BG (terrain, mon pics, HUD, text) + green OBJ (overworld characters,
+-- battle effects).  Battle mon pics are BG tiles, so they come out red/pink
+-- on the near-white field -- see PaletteFX.GBC_BG / monPal.
+return function(game)
+  local U = dofile("tests/drivers/util.lua")
+  local DIR = os.getenv("SHOT_DIR") or "."
+  local PaletteFX = require("src.render.PaletteFX")
+
+  -- Set the SAVED option, not just the live mode: Game:applyOptions re-reads
+  -- save.options.colors, so a bare setMode would get reverted to the default.
+  game.save.options = game.save.options or {}
+  game.save.options.colors = "ogred"
+  PaletteFX.setMode("ogred")
+
+  local Pokemon = require("src.pokemon.Pokemon")
+  game.save.party = { Pokemon.new(game.data, "SQUIRTLE", 5) }
+
+  U.teleport(game, "ROUTE_1", 5, 5, "down")
+  local ow = game.overworld
+
+  local BattleState = require("src.battle.BattleState")
+  local battle = BattleState.newWild(game, "BULBASAUR", 5)
+  battle.onFinish = function() end
+  ow:pushBattle(battle)
+
+  U.wait(220)
+  U.shot(game, DIR .. "/ogred_01_intro.png")
+
+  for _ = 1, 24 do U.tap(game, "a"); U.wait(6) end
+  U.shot(game, DIR .. "/ogred_02_menu.png")
+
+  U.tap(game, "a"); U.wait(12)            -- FIGHT -> move list
+  U.shot(game, DIR .. "/ogred_03_moves.png")
+
+  U.tap(game, "down"); U.wait(6)          -- TACKLE -> TAIL WHIP
+  U.tap(game, "a"); U.wait(30)
+  U.shot(game, DIR .. "/ogred_04_tailwhip.png")
+  U.wait(40)
+  U.shot(game, DIR .. "/ogred_05_after.png")
+  U.wait(4)
+end

tests/input_hold_test.lua

@@ -0,0 +1,56 @@
+-- Same-frame press→release and multi-source hold regressions for Input.lua.
+-- Self-contained: `luajit tests/input_hold_test.lua`; also dofile'd by
+-- tests/run_tests.lua.
+package.path = "./?.lua;./?/init.lua;" .. package.path
+if not _G.love then _G.love = require("tests.love_stub") end
+
+local S = require("tests.harness").suite("input hold")
+local check = S.check
+local Input = require("src.core.Input")
+
+Input:init()
+
+-- Quick tap before the next FixedStep must edge-fire without leaving isDown.
+Input:keypressed("up")
+Input:keyreleased("up")
+Input:step()
+check(Input:wasPressed("up"), "same-frame tap still edges wasPressed")
+check(not Input:isDown("up"), "same-frame tap does not stick isDown")
+
+Input:reset()
+Input:keypressed("up")
+Input:step()
+check(Input:wasPressed("up"), "held press edges wasPressed")
+check(Input:isDown("up"), "held press keeps isDown across step")
+Input:step()
+check(not Input:wasPressed("up"), "hold does not re-edge next step")
+check(Input:isDown("up"), "hold stays down next step")
+Input:keyreleased("up")
+check(not Input:isDown("up"), "release clears isDown")
+
+-- W and Up both map to up; releasing one must not drop the other.
+Input:reset()
+Input:keypressed("w")
+Input:keypressed("up")
+Input:step()
+Input:keyreleased("w")
+check(Input:isDown("up"), "second source keeps up held after first release")
+Input:keyreleased("up")
+check(not Input:isDown("up"), "last source release clears up")
+
+-- Stick flick on→off before step must not stick.
+Input:reset()
+Input:gamepadaxis(nil, "leftx", -0.9)
+Input:gamepadaxis(nil, "leftx", 0)
+Input:step()
+check(Input:wasPressed("left"), "stick flick edges wasPressed")
+check(not Input:isDown("left"), "stick flick does not stick isDown")
+
+-- Drivers that only inject pressQueue still get a one-step hold.
+Input:reset()
+table.insert(Input.pressQueue, "down")
+Input:step()
+check(Input:wasPressed("down"), "synthetic pressQueue edges wasPressed")
+check(Input:isDown("down"), "synthetic pressQueue sets isDown")
+
+S.finish()

tests/love_stub.lua

@@ -40,6 +40,8 @@ stub.graphics = {
   newSpriteBatch = function(image, size)
     local batch = { image = image, sprites = {} }
     function batch:add(quad, x, y) table.insert(self.sprites, { quad, x, y }) end
+    function batch:clear() self.sprites = {} end
+    function batch:setTexture(tex) self.texture = tex end
     return batch
   end,
   draw = noop, rectangle = noop, setColor = noop, clear = noop,

tests/mod_audio_tests.lua

@@ -344,6 +344,24 @@ check(lastSource().queueable and lastSource().playing,
   "a chip song still plays after a file song")
 check(not body.playing, "the outgoing file song was stopped")
 
+-- playOnce must survive the threaded "empty QueueableSource" window:
+-- Source:isPlaying is false until the first worker buffer lands, and that
+-- gap must not look like the jingle already ended (Poké Center heal).
+data = reset(fixtureData())
+Music.playMap(data, "PALLET_TOWN", false, false)
+check(Music.playOnce(data, "Music_Chip"), "playOnce starts a chip jingle")
+local jingle = lastSource()
+local clearAwait = ChipAudio._simulateAwaitingFirstBufferForTest()
+check(clearAwait ~= nil, "test can force the awaiting-first-buffer window")
+check(Music.oneShotPlaying(),
+  "oneShotPlaying stays true while the first buffer is still in flight")
+Music.update(data)
+check(jingle == lastSource() and jingle.queueable,
+  "pendingRestore does not swap the map theme over a pending chip jingle")
+check(ChipAudio.awaitingFirstBuffer(),
+  "awaitingFirstBuffer reports the forced window")
+clearAwait()
+
 -- sfx shape dispatch
 check(Sound.play(data, "Beep") == nil, "Sound.play returns nothing")
 check(lastSource().file == "assets/beep.wav", "a bare string sfx is a static source")