gen1recomp/docs/gold-walkthrough/asm-walk/section-15-mount-mortar-and-dark-cave.md

Section 15 - Mount Mortar and Dark Cave

Source: ../section-15-mount-mortar-and-dark-cave.txt Maps covered: MAP_MOUNT_MORTAR_1F_OUTSIDE, MAP_MOUNT_MORTAR_1F_INSIDE, MAP_MOUNT_MORTAR_2F_INSIDE, MAP_MOUNT_MORTAR_B1F, MAP_DARK_CAVE_BLACKTHORN_ENTRANCE, MAP_DARK_CAVE_VIOLET_ENTRANCE. Touched in passing (owned by neighbouring sections): MAP_MAHOGANY_TOWN, MAP_ROUTE_42, MAP_BLACKTHORN_CITY, MAP_ROUTE_45, MAP_ROUTE_31, MAP_ROUTE_46.

Badges / key milestones in this section: no badge. The milestones are EVENT_BEAT_BLACKBELT_KIYO + EVENT_GOT_TYROGUE_FROM_KIYO (a free level 10 TYROGUE, the only one in the game) and EVENT_GOT_BLACKGLASSES_IN_DARK_CAVE. Everything else here is optional loot. Nothing in this section gates any later section.

A note on coordinates: every table below is transcribed verbatim from the map's _MapEvents block in the named maps/*.asm file. warp_event, coord_event, bg_event and object_event all share one coordinate space (the object_event macro in macros/scripts/maps.asm applies the +4 border offset itself), so the numbers are directly comparable. A map declared map_const NAME, W, H spans x in 0 .. 2W-1 and y in 0 .. 2H-1.

A note on the event flag column of object_event: engine/overworld/map_objects_2.asm CheckObjectFlag hides the object when the flag is set, and -1 means always visible. So for a Poke Ball, "flag set = already taken = gone".

A note on darkness: all six maps in this section are PALETTE_DARK in data/maps/maps.asm. engine/tilesets/timeofday_pals.asm ReplaceTimeOfDayPals (23:43e9) sends PALETTE_DARK down .NeedsFlash, which writes DARKNESS_PALSET unless STATUSFLAGS_FLASH_F is set in wStatusFlags. That bit is set by BlindingFlash (engine/events/field_moves.asm) and cleared by ResetFlashIfOutOfCave (home/flag.asm, 00:2f1d) on any map whose wEnvironment is ROUTE or TOWN. A bot must re-cast Flash every time it re-enters, including after every Fly.

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1. Route order

#	Map constant	asm file	Enter via	Leaves via	Why (walkthrough beat)
1	MAP_MAHOGANY_TOWN	data/maps/maps.asm:74, data/maps/spawn_points.asm spawn MAHOGANY_TOWN, 15, 14	Fly (ENGINE_FLYPOINT_MAHOGANY)	west map connection -> ROUTE_42	heal, buy Max Repels / Escape Ropes, drop to 5 party members so Tyrogue fits
2	MAP_ROUTE_42	maps/Route42.asm	east connection from Mahogany, or warps 1/2 at (0,8)/(0,9) from the Ecruteak gate	warp 3 (10,5) west entrance, warp 4 (28,9) middle entrance, warp 5 (46,7) east entrance -> MOUNT_MORTAR_1F_OUTSIDE warps 1/2/3	"three cave entrances to Mt. Mortar"
3	MAP_MOUNT_MORTAR_1F_OUTSIDE	maps/MountMortar1FOutside.asm	warps 1/2/3 at (3,33)/(17,33)/(37,33)	warp 4 (17,5) -> 2F after Waterfall; warp 7 (17,29) -> B1F	all three Route 42 doors land on this one map; the Surf lake and the waterfall live here
4	MAP_MOUNT_MORTAR_1F_INSIDE	maps/MountMortar1FInside.asm	1F Outside warps 5/6 (11,21)/(29,21) or 8/9 (7,13)/(33,13)	warp 5 (3,19) -> B1F; warp 6 (9,9) -> 2F	the "giant room" with the Strength boulder, Escape Rope and Hyper Potion
5	MAP_MOUNT_MORTAR_2F_INSIDE	maps/MountMortar2FInside.asm	warp 1 (17,33) from 1F Outside warp 4 (top of the waterfall)	warp 2 (3,5) -> MOUNT_MORTAR_1F_INSIDE warp 6	Rare Candy, Max Potion, TM40, Dragon Scale, Elixer, Escape Rope, hidden Full Restore
6	MAP_MOUNT_MORTAR_B1F	maps/MountMortarB1F.asm	warp 1 (3,3) from 1F Inside warp 5	Escape Rope, or Strength the boulder at (9,10) and take warp 2 (19,29) -> 1F Outside warp 7	Blackbelt Kiyo, then the free Tyrogue
7	MAP_BLACKTHORN_CITY	data/maps/maps.asm:187, data/maps/spawn_points.asm spawn BLACKTHORN_CITY, 21, 30	Fly (ENGINE_FLYPOINT_BLACKTHORN)	south map connection (data/maps/attributes.asm:161 connection south, Route45, ROUTE_45, 0)	heal, then head south
8	MAP_ROUTE_45	maps/Route45.asm	north connection from Blackthorn	warp 1 (2,5) -> DARK_CAVE_BLACKTHORN_ENTRANCE warp 1	"enter the Dark Cave to the left before there are even any jumps"
9	MAP_DARK_CAVE_BLACKTHORN_ENTRANCE	maps/DarkCaveBlackthornEntrance.asm	warp 1 (23,3)	warp 2 (3,25) -> DARK_CAVE_VIOLET_ENTRANCE warp 2	Blackglasses NPC, Revive, TM13 Snore, Wobbuffet
10	MAP_DARK_CAVE_VIOLET_ENTRANCE	maps/DarkCaveVioletEntrance.asm	warp 2 (17,1)	warp 1 (3,15) -> ROUTE_31 warp 3	"surf down, rock smash the rock, grab the Potion, head out onto Route 31"
11	MAP_ROUTE_31	maps/Route31.asm	warp 3 (34,5)	Fly back to Blackthorn	walkthrough exit

Spill into the next section: the walkthrough's video links name Blackthorn Gym, Route 45/46, Tohjo Falls, Routes 26/27, Victory Road and the Elite Four, but its prose stops at "head back south to actually take Route 45". MAP_ROUTE_45 proper, MAP_ROUTE_46, MAP_BLACKTHORN_GYM and everything past them belong to the next section; only the Route 45 warp that reaches Dark Cave is documented here.

MAP_DARK_CAVE_VIOLET_ENTRANCE is also reachable from ROUTE_46 warp 3 at (14,5) (-> Dark Cave warp 3 at (35,33)) and from ROUTE_31 warp 3; the earlier sections that visit Route 31 already touch the north end of this map. This section only walks it top-to-bottom-left, from the Blackthorn side out to Route 31.

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2. Maps

MAP_MOUNT_MORTAR_1F_OUTSIDE

• Script: maps/MountMortar1FOutside.asm
• Blocks: maps/MountMortar1FOutside.blk
• Header: data/maps/maps.asm:127 -> TILESET_DARK_CAVE, CAVE, LANDMARK_MT_MORTAR, MUSIC_UNION_CAVE, phone TRUE, PALETTE_DARK, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:114 map_const MOUNT_MORTAR_1F_OUTSIDE, 20, 18 (x 0..39, y 0..35), map id 49, group 3
• Attributes: data/maps/attributes.asm:446, border block $09, no connections
• Map events block: MountMortar1FOutside_MapEvents = 46:5db9

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	3	33	ROUTE_42	3
2	17	33	ROUTE_42	4
3	37	33	ROUTE_42	5
4	17	5	MOUNT_MORTAR_2F_INSIDE	1
5	11	21	MOUNT_MORTAR_1F_INSIDE	1
6	29	21	MOUNT_MORTAR_1F_INSIDE	2
7	17	29	MOUNT_MORTAR_B1F	2
8	7	13	MOUNT_MORTAR_1F_INSIDE	3
9	33	13	MOUNT_MORTAR_1F_INSIDE	4

Coord events (def_coord_events)

def_coord_events is empty. No scripted trip-wires anywhere in Mt. Mortar.

BG events (def_bg_events)

x	y	type	script/item
25	22	BGEVENT_ITEM	MountMortar1FOutsideHiddenHyperPotion -> hiddenitem HYPER_POTION, EVENT_MOUNT_MORTAR_1F_OUTSIDE_HIDDEN_HYPER_POTION

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
MOUNTMORTAR1FOUTSIDE_POKE_BALL1	SPRITE_POKE_BALL	13	15	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar1FOutsideEther (itemball ETHER)	EVENT_MOUNT_MORTAR_1F_OUTSIDE_ETHER
MOUNTMORTAR1FOUTSIDE_POKE_BALL2	SPRITE_POKE_BALL	31	18	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar1FOutsideGuardSpec (itemball GUARD_SPEC)	EVENT_MOUNT_MORTAR_1F_OUTSIDE_REVIVE

Note the flag/item mismatch on the second ball: the item is GUARD_SPEC but the flag is named ..._REVIVE. That is verbatim from the disassembly - the label name is cosmetic, the flag bit is what matters.

Scripts of interest

• MountMortar1FOutsideEther / MountMortar1FOutsideGuardSpec - bare itemball ITEM rows (two bytes, no bytecode). Picked up by the shared FindItemInBallScript path, not by a per-map script.
• MountMortar1FOutsideHiddenHyperPotion - hiddenitem data behind a BGEVENT_ITEM row; A-pressed on (25,22) or found by the ITEMFINDER.

Wild encounters

data/wild/johto_grass.asm:686 def_grass_wildmons MOUNT_MORTAR_1F_OUTSIDE, encounter rate 6 percent for all three of morn/day/nite, and all three slot lists are identical:

slot	lvl	species
1	13	ZUBAT
2	15	ZUBAT
3	14	MACHOP
4	14	RATTATA
5	14	GEODUDE
6	16	RATTATA
7	15	MARILL

data/wild/johto_water.asm:58 def_water_wildmons MOUNT_MORTAR_1F_OUTSIDE, rate 4 percent: 20 GOLDEEN / 15 GOLDEEN / 20 SEAKING.

Fishing: FISHGROUP_LAKE, data/wild/fish.asm:57 - Old rod MAGIKARP 10 / GOLDEEN 10; Good rod MAGIKARP 20 / GOLDEEN 20 / time_group 4; Super rod GOLDEEN 40 / time_group 5 / MAGIKARP 40 / SEAKING 40.

No headbutt or rock-smash table (data/wild/treemon_maps.asm does not list this map).

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MAP_MOUNT_MORTAR_1F_INSIDE

• Script: maps/MountMortar1FInside.asm
• Blocks: maps/MountMortar1FInside.blk
• Header: data/maps/maps.asm:128 -> TILESET_DARK_CAVE, CAVE, LANDMARK_MT_MORTAR, MUSIC_UNION_CAVE, phone TRUE, PALETTE_DARK, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:115 map_const MOUNT_MORTAR_1F_INSIDE, 20, 27 (x 0..39, y 0..53), map id 50, group 3
• Attributes: data/maps/attributes.asm:447, border block $09, no connections
• Map events block: MountMortar1FInside_MapEvents = 46:5e19

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	11	47	MOUNT_MORTAR_1F_OUTSIDE	5
2	29	47	MOUNT_MORTAR_1F_OUTSIDE	6
3	5	39	MOUNT_MORTAR_1F_OUTSIDE	8
4	33	41	MOUNT_MORTAR_1F_OUTSIDE	9
5	3	19	MOUNT_MORTAR_B1F	1
6	9	9	MOUNT_MORTAR_2F_INSIDE	2

Coord events - empty.

BG events (def_bg_events)

x	y	type	script/item
31	9	BGEVENT_ITEM	MountMortar1FInsideHiddenMaxRepel -> hiddenitem MAX_REPEL, EVENT_MOUNT_MORTAR_1F_INSIDE_HIDDEN_MAX_REPEL

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
MOUNTMORTAR1FINSIDE_BOULDER	SPRITE_BOULDER	21	43	SPRITEMOVEDATA_STRENGTH_BOULDER	OBJECTTYPE_SCRIPT	MountMortar1FBoulder (jumpstd StrengthBoulderScript)	-1
MOUNTMORTAR1FINSIDE_POKE_BALL1	SPRITE_POKE_BALL	33	22	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar1FInsideEscapeRope (itemball ESCAPE_ROPE)	EVENT_MOUNT_MORTAR_1F_INSIDE_ESCAPE_ROPE
MOUNTMORTAR1FINSIDE_POKE_BALL2	SPRITE_POKE_BALL	16	10	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar1FInsideMaxRevive (itemball MAX_REVIVE)	EVENT_MOUNT_MORTAR_1F_INSIDE_MAX_REVIVE
MOUNTMORTAR1FINSIDE_POKE_BALL3	SPRITE_POKE_BALL	12	21	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar1FInsideHyperPotion (itemball HYPER_POTION)	EVENT_MOUNT_MORTAR_1F_INSIDE_HYPER_POTION

Scripts of interest

• MountMortar1FBoulder - one line: jumpstd StrengthBoulderScript. engine/events/std_scripts.asm:196 StrengthBoulderScript: farsjump AskStrengthScript (03:4d4e). See section 3 for the gate.

Wild encounters

data/wild/johto_grass.asm:714 def_grass_wildmons MOUNT_MORTAR_1F_INSIDE, rate 6 percent morn/day/nite, all three lists identical:

slot	lvl	species
1	13	GEODUDE
2	13	MACHOP
3	15	GEODUDE
4	14	RATTATA
5	15	MACHOP
6	14	ZUBAT
7	14	ZUBAT

There is no def_water_wildmons MOUNT_MORTAR_1F_INSIDE in data/wild/johto_water.asm - only 1F Outside, 2F Inside and B1F have water tables. Fishing group is still FISHGROUP_LAKE.

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MAP_MOUNT_MORTAR_2F_INSIDE

• Script: maps/MountMortar2FInside.asm
• Blocks: maps/MountMortar2FInside.blk
• Header: data/maps/maps.asm:129 -> TILESET_DARK_CAVE, CAVE, LANDMARK_MT_MORTAR, MUSIC_UNION_CAVE, phone TRUE, PALETTE_DARK, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:116 map_const MOUNT_MORTAR_2F_INSIDE, 20, 18 (x 0..39, y 0..35), map id 51, group 3
• Attributes: data/maps/attributes.asm:448, border block $09, no connections
• Map events block: MountMortar2FInside_MapEvents = 46:5e87

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	17	33	MOUNT_MORTAR_1F_OUTSIDE	4
2	3	5	MOUNT_MORTAR_1F_INSIDE	6

Coord events - empty.

BG events (def_bg_events)

x	y	type	script/item
19	6	BGEVENT_ITEM	MountMortar2FInsideHiddenFullRestore -> hiddenitem FULL_RESTORE, EVENT_MOUNT_MORTAR_2F_INSIDE_HIDDEN_FULL_RESTORE

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
MOUNTMORTAR2FINSIDE_POKE_BALL1	SPRITE_POKE_BALL	31	23	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar2FInsideMaxPotion (itemball MAX_POTION)	EVENT_MOUNT_MORTAR_2F_INSIDE_MAX_POTION
MOUNTMORTAR2FINSIDE_POKE_BALL2	SPRITE_POKE_BALL	2	24	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar2FInsideRareCandy (itemball RARE_CANDY)	EVENT_MOUNT_MORTAR_2F_INSIDE_RARE_CANDY
MOUNTMORTAR2FINSIDE_POKE_BALL3	SPRITE_POKE_BALL	19	17	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar2FInsideTMDefenseCurl (itemball TM_DEFENSE_CURL)	EVENT_MOUNT_MORTAR_2F_INSIDE_TM_DEFENSE_CURL
MOUNTMORTAR2FINSIDE_POKE_BALL4	SPRITE_POKE_BALL	14	5	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar2FInsideDragonScale (itemball DRAGON_SCALE)	EVENT_MOUNT_MORTAR_2F_INSIDE_DRAGON_SCALE
MOUNTMORTAR2FINSIDE_POKE_BALL5	SPRITE_POKE_BALL	8	9	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar2FInsideElixer (itemball ELIXER)	EVENT_MOUNT_MORTAR_2F_INSIDE_ELIXER
MOUNTMORTAR2FINSIDE_POKE_BALL6	SPRITE_POKE_BALL	28	5	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortar2FInsideEscapeRope (itemball ESCAPE_ROPE)	EVENT_MOUNT_MORTAR_2F_INSIDE_ESCAPE_ROPE

TM_DEFENSE_CURL is TM40 by the add_tm ordering in constants/item_constants.asm:261. The walkthrough calls it "TM40 Aerial Ace", which is the HGSS remake's TM40 - see section 6.

Wild encounters

data/wild/johto_grass.asm:742 def_grass_wildmons MOUNT_MORTAR_2F_INSIDE, rate 6 percent morn/day/nite, all three lists identical - this is the floor the walkthrough's "Raticate / Machoke / Graveler" list is drawn from:

slot	lvl	species
1	31	GRAVELER
2	32	MACHOKE
3	31	GEODUDE
4	30	RATICATE
5	28	MACHOP
6	30	GOLBAT
7	30	GOLBAT

data/wild/johto_water.asm:65 def_water_wildmons MOUNT_MORTAR_2F_INSIDE, rate 2 percent: 20 GOLDEEN / 25 GOLDEEN / 25 SEAKING.

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MAP_MOUNT_MORTAR_B1F

• Script: maps/MountMortarB1F.asm
• Blocks: maps/MountMortarB1F.blk
• Header: data/maps/maps.asm:130 -> TILESET_DARK_CAVE, CAVE, LANDMARK_MT_MORTAR, MUSIC_UNION_CAVE, phone TRUE, PALETTE_DARK, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:117 map_const MOUNT_MORTAR_B1F, 20, 18 (x 0..39, y 0..35), map id 52, group 3
• Attributes: data/maps/attributes.asm:449, border block $09, no connections
• Map events block: MountMortarB1F_MapEvents = 46:60f0

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	3	3	MOUNT_MORTAR_1F_INSIDE	5
2	19	29	MOUNT_MORTAR_1F_OUTSIDE	7

Coord events - empty. Kiyo is a talk-to trigger, not a trip-wire.

BG events (def_bg_events)

x	y	type	script/item
4	6	BGEVENT_ITEM	MountMortarB1FHiddenMaxRevive -> hiddenitem MAX_REVIVE, EVENT_MOUNT_MORTAR_B1F_HIDDEN_MAX_REVIVE

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
MOUNTMORTARB1F_POKE_BALL1	SPRITE_POKE_BALL	31	17	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortarB1FHyperPotion (itemball HYPER_POTION)	EVENT_MOUNT_MORTAR_B1F_HYPER_POTION
MOUNTMORTARB1F_POKE_BALL2	SPRITE_POKE_BALL	4	16	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	MountMortarB1FFullHeal (itemball FULL_HEAL)	EVENT_MOUNT_MORTAR_B1F_FULL_HEAL
MOUNTMORTARB1F_BOULDER	SPRITE_BOULDER	9	10	SPRITEMOVEDATA_STRENGTH_BOULDER	OBJECTTYPE_SCRIPT	MountMortarB1FBoulder (jumpstd StrengthBoulderScript)	-1
MOUNTMORTARB1F_KIYO	SPRITE_BLACK_BELT	13	4	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT, palette PAL_NPC_BROWN	MountMortarB1FKiyoScript	-1

Scripts of interest

MountMortarB1FKiyoScript (46:5eec) - the whole point of this section. Note it is OBJECTTYPE_SCRIPT, not OBJECTTYPE_TRAINER: Kiyo has no trainer header, no sight range, and never walks up to you. He must be talked to.

faceplayer
opentext
checkevent EVENT_GOT_TYROGUE_FROM_KIYO     ; iftrue -> .GotTyrogue (46:5f27)
checkevent EVENT_BEAT_BLACKBELT_KIYO       ; iftrue -> .BeatKiyo   (46:5f0d)
writetext MountMortarB1FKiyoIntroText
waitbutton
closetext
winlosstext MountMortarB1FKiyoWinText, 0
loadtrainer BLACKBELT_T, KIYO
startbattle
reloadmapafterbattle
setevent EVENT_BEAT_BLACKBELT_KIYO
opentext
.BeatKiyo:
writetext MountMortarB1FTyrogueRewardText
promptbutton
waitsfx
readvar VAR_PARTYCOUNT
ifequal PARTY_LENGTH, .NoRoom              ; 46:5f2d
writetext MountMortarB1FReceiveMonText
playsound SFX_CAUGHT_MON
waitsfx
givepoke TYROGUE, 10
setevent EVENT_GOT_TYROGUE_FROM_KIYO
.GotTyrogue:
writetext MountMortarB1FKiyoGotTyrogueText
waitbutton
closetext
end

Bot-relevant control flow:

• The battle is unconditional on first talk (no checkevent guard before loadtrainer), and the win-flag write is after startbattle, so a blackout means the whole script re-runs from the top.
• readvar VAR_PARTYCOUNT / ifequal PARTY_LENGTH is the "you have no room" branch. PARTY_LENGTH is 6. If the party is full, EVENT_BEAT_BLACKBELT_KIYO is already set but EVENT_GOT_TYROGUE_FROM_KIYO is not, so re-talking re-enters at .BeatKiyo and offers the Tyrogue again. This is why the walkthrough tells you to free a slot in advance - but it is recoverable, not missable.
• givepoke TYROGUE, 10 - level 10, no held item, no nickname prompt in this form of the opcode.

MountMortarB1FBoulder - jumpstd StrengthBoulderScript, same as 1F Inside.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_BEAT_BLACKBELT_KIYO	constants/event_flags.asm:684	set by MountMortarB1FKiyoScript after startbattle	Kiyo will not fight again
EVENT_GOT_TYROGUE_FROM_KIYO	constants/event_flags.asm:106	set by MountMortarB1FKiyoScript after givepoke	the Tyrogue is banked; the script becomes pure flavour

Trainers

const	class	id	party (data/trainers/parties.asm label)	script label	rematch/phone
KIYO (constants/trainer_constants.asm:500)	BLACKBELT_T	6th entry of BlackbeltGroup	data/trainers/parties.asm:2455 ; BLACKBELT_T (6) db "KIYO@", TRAINERTYPE_NORMAL / db 34, HITMONLEE / db 34, HITMONCHAN	MountMortarB1FKiyoScript	none - no trainer header, so no phone number, no rematch

TRAINERTYPE_NORMAL means no custom moves and no held items: both mons use their level-34 learnset defaults. The walkthrough's "816G" prize and the 1012/1020 EXP figures were not verified against data/trainers/attributes.asm - see section 6.

Wild encounters

data/wild/johto_grass.asm:770 def_grass_wildmons MOUNT_MORTAR_B1F, rate 6 percent morn/day/nite, all three lists identical:

slot	lvl	species
1	15	ZUBAT
2	17	ZUBAT
3	16	RATTATA
4	16	MACHOP
5	16	GEODUDE
6	16	RATICATE
7	16	RATICATE

data/wild/johto_water.asm:72 def_water_wildmons MOUNT_MORTAR_B1F, rate 2 percent: 20 GOLDEEN / 15 GOLDEEN / 20 SEAKING.

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MAP_DARK_CAVE_BLACKTHORN_ENTRANCE

• Script: maps/DarkCaveBlackthornEntrance.asm
• Blocks: maps/DarkCaveBlackthornEntrance.blk
• Header: data/maps/maps.asm:149 -> TILESET_DARK_CAVE, CAVE, LANDMARK_DARK_CAVE, MUSIC_DARK_CAVE, phone TRUE, PALETTE_DARK, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:136 map_const DARK_CAVE_BLACKTHORN_ENTRANCE, 15, 18 (x 0..29, y 0..35), map id 71, group 3
• Attributes: data/maps/attributes.asm:468, border block $09, no connections
• Map events block: DarkCaveBlackthornEntrance_MapEvents = 47:4489

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	23	3	ROUTE_45	1
2	3	25	DARK_CAVE_VIOLET_ENTRANCE	2

Coord events - empty.

BG events - def_bg_events is empty. No signs, no hidden items.

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
DARKCAVEBLACKTHORNENTRANCE_PHARMACIST	SPRITE_PHARMACIST	7	3	SPRITEMOVEDATA_SPINRANDOM_SLOW	OBJECTTYPE_SCRIPT	DarkCaveBlackthornEntrancePharmacistScript	-1
DARKCAVEBLACKTHORNENTRANCE_POKE_BALL1	SPRITE_POKE_BALL	21	24	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	DarkCaveBlackthornEntranceRevive (itemball REVIVE)	EVENT_DARK_CAVE_BLACKTHORN_ENTRANCE_REVIVE
DARKCAVEBLACKTHORNENTRANCE_POKE_BALL2	SPRITE_POKE_BALL	7	22	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	DarkCaveBlackthornEntranceTMSnore (itemball TM_SNORE)	EVENT_DARK_CAVE_BLACKTHORN_ENTRANCE_TM_SNORE

TM_SNORE is TM13 by the add_tm ordering in constants/item_constants.asm:233, which matches the walkthrough's "TM 13".

Scripts of interest

DarkCaveBlackthornEntrancePharmacistScript (47:436c):

faceplayer
opentext
checkevent EVENT_GOT_BLACKGLASSES_IN_DARK_CAVE  ; iftrue -> .GotBlackglasses (47:4381)
writetext DarkCaveBlackthornEntrancePharmacistText1
promptbutton
verbosegiveitem BLACKGLASSES
iffalse .PackFull                                ; 47:4385
setevent EVENT_GOT_BLACKGLASSES_IN_DARK_CAVE
.GotBlackglasses:
writetext DarkCaveBlackthornEntrancePharmacistText2
waitbutton
.PackFull:
closetext
end

Bot-relevant: verbosegiveitem returns 0 when the pack is full, and the setevent is after the give, so a full item pocket leaves the flag clear and the NPC re-offers. Not missable. The NPC spins (SPRITEMOVEDATA_SPINRANDOM_SLOW), so the bot must stand adjacent and press A; faceplayer handles the turn.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_GOT_BLACKGLASSES_IN_DARK_CAVE	constants/event_flags.asm:123	DarkCaveBlackthornEntrancePharmacistScript	BLACKGLASSES banked; NPC becomes flavour text
EVENT_DARK_CAVE_BLACKTHORN_ENTRANCE_REVIVE	constants/event_flags.asm:1090	object visibility mask	set = ball already taken
EVENT_DARK_CAVE_BLACKTHORN_ENTRANCE_TM_SNORE	constants/event_flags.asm:1091	object visibility mask	set = TM13 already taken

Wild encounters

data/wild/johto_grass.asm:1545 def_grass_wildmons DARK_CAVE_BLACKTHORN_ENTRANCE, rate 4 percent morn/day/nite, all three lists identical - this is the walkthrough's Wobbuffet spot:

slot	lvl	species
1	23	GEODUDE
2	23	ZUBAT
3	25	GRAVELER
4	20	WOBBUFFET
5	25	WOBBUFFET
6	23	GOLBAT
7	23	GOLBAT

data/wild/johto_water.asm:114 def_water_wildmons DARK_CAVE_BLACKTHORN_ENTRANCE, rate 2 percent: 15 MAGIKARP / 10 MAGIKARP / 5 MAGIKARP.

No treemon_map row for this map - rock smash here yields nothing, and there are no smashable rock objects on it either.

---

MAP_DARK_CAVE_VIOLET_ENTRANCE

• Script: maps/DarkCaveVioletEntrance.asm
• Blocks: maps/DarkCaveVioletEntrance.blk
• Header: data/maps/maps.asm:148 -> TILESET_DARK_CAVE, CAVE, LANDMARK_DARK_CAVE, MUSIC_DARK_CAVE, phone TRUE, PALETTE_DARK, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:135 map_const DARK_CAVE_VIOLET_ENTRANCE, 20, 18 (x 0..39, y 0..35), map id 70, group 3
• Attributes: data/maps/attributes.asm:467, border block $09, no connections
• Map events block: DarkCaveVioletEntrance_MapEvents = 47:42f5

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	3	15	ROUTE_31	3
2	17	1	DARK_CAVE_BLACKTHORN_ENTRANCE	2
3	35	33	ROUTE_46	3

Coord events - empty.

BG events (def_bg_events)

x	y	type	script/item
26	3	BGEVENT_ITEM	DarkCaveVioletEntranceHiddenElixer -> hiddenitem ELIXER, EVENT_DARK_CAVE_VIOLET_ENTRANCE_HIDDEN_ELIXER

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
DARKCAVEVIOLETENTRANCE_POKE_BALL1	SPRITE_POKE_BALL	6	8	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	DarkCaveVioletEntrancePotion (itemball POTION)	EVENT_DARK_CAVE_VIOLET_ENTRANCE_POTION
DARKCAVEVIOLETENTRANCE_ROCK1	SPRITE_ROCK	16	14	SPRITEMOVEDATA_SMASHABLE_ROCK	OBJECTTYPE_SCRIPT	DarkCaveVioletEntranceRock (jumpstd SmashRockScript)	-1
DARKCAVEVIOLETENTRANCE_ROCK2	SPRITE_ROCK	27	6	SPRITEMOVEDATA_SMASHABLE_ROCK	OBJECTTYPE_SCRIPT	DarkCaveVioletEntranceRock	-1
DARKCAVEVIOLETENTRANCE_ROCK3	SPRITE_ROCK	7	14	SPRITEMOVEDATA_SMASHABLE_ROCK	OBJECTTYPE_SCRIPT	DarkCaveVioletEntranceRock	-1
DARKCAVEVIOLETENTRANCE_ROCK4	SPRITE_ROCK	36	31	SPRITEMOVEDATA_SMASHABLE_ROCK	OBJECTTYPE_SCRIPT	DarkCaveVioletEntranceRock	-1
DARKCAVEVIOLETENTRANCE_POKE_BALL2	SPRITE_POKE_BALL	36	22	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	DarkCaveVioletEntranceFullHeal (itemball FULL_HEAL)	EVENT_DARK_CAVE_VIOLET_ENTRANCE_FULL_HEAL
DARKCAVEVIOLETENTRANCE_POKE_BALL3	SPRITE_POKE_BALL	35	9	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	DarkCaveVioletEntranceHyperPotion (itemball HYPER_POTION)	EVENT_DARK_CAVE_VIOLET_ENTRANCE_HYPER_POTION

Note the four rocks all share one script label; the smash disappear LAST_TALKED in RockSmashScript acts on hLastTalked, so they are independent objects despite the shared pointer. Rocks have no event flag (-1) - they come back on every map reload.

Scripts of interest

DarkCaveVioletEntranceRock - jumpstd SmashRockScript (engine/events/std_scripts.asm:199 -> farsjump AskRockSmashScript, 03:4f60). AskRockSmashScript calls HasRockSmash (03:4f7f), which is inverted (wScriptVar = 1 when the party does NOT know ROCK SMASH); on 0 it prompts yes/no and falls into RockSmashScript (03:4f35): playsound SFX_STRENGTH / earthquake 84 / applymovementlasttalked MovementData_RockSmash / disappear LAST_TALKED / callasm RockMonEncounter / randomwildmon / startbattle.

Wild encounters

data/wild/johto_grass.asm:1517 def_grass_wildmons DARK_CAVE_VIOLET_ENTRANCE, rate 4 percent morn/day/nite, all three lists identical:

slot	lvl	species
1	3	GEODUDE
2	2	ZUBAT
3	2	GEODUDE
4	4	GEODUDE
5	3	ZUBAT
6	4	ZUBAT
7	4	DUNSPARCE

data/wild/johto_water.asm:107 def_water_wildmons DARK_CAVE_VIOLET_ENTRANCE, rate 2 percent: 15 MAGIKARP / 10 MAGIKARP / 5 MAGIKARP.

Rock smash encounters - this map IS in data/wild/treemon_maps.asm:46 RockMonMaps: treemon_map DARK_CAVE_VIOLET_ENTRANCE, TREEMON_SET_ROCK. RockMonEncounter (2e:63a1) rolls RandomRange 10 < 4 (a 40% chance) and then SelectTreeMon over data/wild/treemons.asm:91 TreeMonSet_Rock: 90% KRABBY lvl 15, 10% SHUCKLE lvl 15. This is the only Shuckle source in Johto reachable in this section, and the walkthrough does not mention it.

---

3. Blockers and gates

Gate	Enforced by (file:label)	Requirement	Unlock condition
Darkness on all six maps	engine/tilesets/timeofday_pals.asm ReplaceTimeOfDayPals (23:43e9) .NeedsFlash -> DARKNESS_PALSET, because data/maps/maps.asm lines 127-130 / 148-149 all say PALETTE_DARK	FLASH cast, i.e. STATUSFLAGS_FLASH_F set in wStatusFlags	engine/events/overworld.asm FlashFunction.CheckUseFlash (03:48f1): ENGINE_ZEPHYRBADGE and wTimeOfDayPalset == DARKNESS_PALSET. The bit is cleared by home/flag.asm ResetFlashIfOutOfCave (00:2f1d) on any ROUTE/TOWN map, so re-cast after every exit and every Fly
Mt. Mortar middle entrance (ROUTE_42 warp 4 at (28,9))	terrain: the tile is across water on Route 42	SURF	engine/events/overworld.asm SurfFunction (03:493b), .TrySurf arm / TrySurfOW (03:4a06): ENGINE_FOGBADGE + a party member knowing SURF
The lake and the waterfall between 1F Outside and 2F	terrain on MountMortar1FOutside.blk; the only route to warp 4 at (17,5)	SURF, then WATERFALL	WaterfallFunction.TryWaterfall (03:4af6) / TryWaterfallOW (03:4b5f): ENGINE_RISINGBADGE, then CheckMapCanWaterfall - player must be facing UP and the tile ABOVE (wTileUp) must be a waterfall tile
MOUNTMORTAR1FINSIDE_BOULDER at (21,43)	MountMortar1FBoulder -> jumpstd StrengthBoulderScript -> AskStrengthScript (03:4d4e)	STRENGTH toggled on	TryStrengthOW (03:4d7b): party knows STRENGTH and ENGINE_PLAINBADGE and BIKEFLAGS_STRENGTH_ACTIVE_F set. StrengthFunction.TryStrength (03:4cf1) only checks the badge. Note ResetBikeFlags clears the active bit on every map load - Strength must be re-activated per floor
MOUNTMORTARB1F_BOULDER at (9,10)	MountMortarB1FBoulder, same std script	STRENGTH	as above. This is the walkthrough's "move the rock with HM Strength to get out"; the alternative is an Escape Rope
Kiyo's Tyrogue	MountMortarB1FKiyoScript readvar VAR_PARTYCOUNT / ifequal PARTY_LENGTH, .NoRoom	5 or fewer party members	free a slot and re-talk; EVENT_BEAT_BLACKBELT_KIYO stays set so the battle is not repeated
Dark Cave water crossings (both entrances)	terrain	SURF	ENGINE_FOGBADGE as above
DARKCAVEVIOLETENTRANCE_ROCK1..4	DarkCaveVioletEntranceRock -> jumpstd SmashRockScript -> AskRockSmashScript (03:4f60)	a party member knowing ROCK SMASH (TM08)	HasRockSmash (03:4f7f) - no badge check at all for Rock Smash
Fly between Mahogany and Blackthorn	engine/events/overworld.asm:545 (the .TryFly arm of the Fly jumptable) ld de, ENGINE_STORMBADGE	ENGINE_STORMBADGE + the destination's ENGINE_FLYPOINT_* (constants/engine_flags.asm:87, :89)	both flypoints are set by visiting the towns in earlier sections

Badge constants used above: ENGINE_ZEPHYRBADGE (constants/engine_flags.asm:38), ENGINE_PLAINBADGE (:40), ENGINE_FOGBADGE (:41), ENGINE_STORMBADGE (:43), ENGINE_RISINGBADGE (:45). All are checked through engine/events/overworld.asm CheckBadge (line 50), which prints "Badge required" and returns carry.

Nothing in this section gates anything else. Both Mt. Mortar and Dark Cave are entirely optional; a bot that skips them loses only items, the Tyrogue and the Blackglasses.

---

4. Bot checklist

Preconditions for the whole section: ENGINE_ZEPHYRBADGE, ENGINE_FOGBADGE, ENGINE_PLAINBADGE, ENGINE_RISINGBADGE, ENGINE_STORMBADGE; party members knowing FLASH, SURF, STRENGTH, WATERFALL (and ROCK SMASH for step 26); party count <= 5 before step 20.

#	Map	Target	Intent	Precondition	Postcondition
1	MAHOGANY_TOWN	spawn (15,14)	Fly in, heal, buy MAX_REPEL / ESCAPE_ROPE	ENGINE_FLYPOINT_MAHOGANY	party healthy, bag stocked
2	MAHOGANY_TOWN	west map connection	walk west	-	on ROUTE_42
3	ROUTE_42	warp 3 at (10,5)	step onto warp (west entrance)	-	on MOUNT_MORTAR_1F_OUTSIDE at (3,33)
4	MOUNT_MORTAR_1F_OUTSIDE	-	use FLASH from the PACK/party menu	ENGINE_ZEPHYRBADGE, map palset is DARKNESS_PALSET	STATUSFLAGS_FLASH_F set
5	MOUNT_MORTAR_1F_OUTSIDE	-	use MAX_REPEL	bag has one	encounters suppressed
6	MOUNT_MORTAR_1F_OUTSIDE	object at (13,15)	walk onto / A-press the Poke Ball	EVENT_MOUNT_MORTAR_1F_OUTSIDE_ETHER clear	ETHER in bag, flag set
7	MOUNT_MORTAR_1F_OUTSIDE	object at (31,18)	pick up Poke Ball	EVENT_MOUNT_MORTAR_1F_OUTSIDE_REVIVE clear	GUARD_SPEC in bag, flag set
8	MOUNT_MORTAR_1F_OUTSIDE	bg event (25,22)	face the tile, press A	EVENT_MOUNT_MORTAR_1F_OUTSIDE_HIDDEN_HYPER_POTION clear	HYPER_POTION in bag, flag set
9	MOUNT_MORTAR_1F_OUTSIDE	warp 5 at (11,21)	step on warp	-	on MOUNT_MORTAR_1F_INSIDE at (11,47)
10	MOUNT_MORTAR_1F_INSIDE	-	re-cast FLASH only if it was lost (it is not - cave to cave keeps the bit)	-	-
11	MOUNT_MORTAR_1F_INSIDE	object at (33,22)	pick up Poke Ball	EVENT_MOUNT_MORTAR_1F_INSIDE_ESCAPE_ROPE clear	ESCAPE_ROPE in bag
12	MOUNT_MORTAR_1F_INSIDE	object at (12,21)	pick up Poke Ball	EVENT_MOUNT_MORTAR_1F_INSIDE_HYPER_POTION clear	HYPER_POTION in bag
13	MOUNT_MORTAR_1F_INSIDE	boulder at (21,43)	activate STRENGTH from the party menu, then push	ENGINE_PLAINBADGE, party knows STRENGTH	BIKEFLAGS_STRENGTH_ACTIVE_F set, boulder movable
14	MOUNT_MORTAR_1F_INSIDE	warp 1 at (11,47)	back out	-	on MOUNT_MORTAR_1F_OUTSIDE at (11,21)
15	MOUNT_MORTAR_1F_OUTSIDE	the lake	walk into water / A-press facing water -> SURF	ENGINE_FOGBADGE	wPlayerState = PLAYER_SURF
16	MOUNT_MORTAR_1F_OUTSIDE	the waterfall tile	face UP at the waterfall, press A -> WATERFALL	ENGINE_RISINGBADGE, CheckMapCanWaterfall passes	climbed
17	MOUNT_MORTAR_1F_OUTSIDE	warp 4 at (17,5)	step on warp	-	on MOUNT_MORTAR_2F_INSIDE at (17,33)
18	MOUNT_MORTAR_2F_INSIDE	objects at (31,23), (2,24), (19,17), (14,5), (8,9), (28,5)	pick up all six Poke Balls	matching EVENT_MOUNT_MORTAR_2F_INSIDE_* clear	MAX_POTION, RARE_CANDY, TM_DEFENSE_CURL (TM40), DRAGON_SCALE, ELIXER, ESCAPE_ROPE
19	MOUNT_MORTAR_2F_INSIDE	bg event (19,6)	face, press A	EVENT_MOUNT_MORTAR_2F_INSIDE_HIDDEN_FULL_RESTORE clear	FULL_RESTORE in bag
20	MOUNT_MORTAR_2F_INSIDE	warp 2 at (3,5)	step on warp	-	on MOUNT_MORTAR_1F_INSIDE at (9,9)
21	MOUNT_MORTAR_1F_INSIDE	object at (16,10)	pick up Poke Ball	EVENT_MOUNT_MORTAR_1F_INSIDE_MAX_REVIVE clear	MAX_REVIVE in bag
22	MOUNT_MORTAR_1F_INSIDE	bg event (31,9)	face, press A	EVENT_MOUNT_MORTAR_1F_INSIDE_HIDDEN_MAX_REPEL clear	MAX_REPEL in bag
23	MOUNT_MORTAR_1F_INSIDE	warp 5 at (3,19)	step on warp	-	on MOUNT_MORTAR_B1F at (3,3)
24	MOUNT_MORTAR_B1F	bg (4,6), objects (4,16) and (31,17)	pick up hidden MAX_REVIVE, FULL_HEAL, HYPER_POTION	matching EVENT_MOUNT_MORTAR_B1F_* clear	three items
25	MOUNT_MORTAR_B1F	MOUNTMORTARB1F_KIYO at (13,4)	stand adjacent, press A	party count <= 5, EVENT_GOT_TYROGUE_FROM_KIYO clear	battle BLACKBELT_T/KIYO (L34 HITMONLEE, L34 HITMONCHAN) -> EVENT_BEAT_BLACKBELT_KIYO
26	MOUNT_MORTAR_B1F	Kiyo (same object, script continues)	press A through the reward text	party count <= 5	givepoke TYROGUE, 10, EVENT_GOT_TYROGUE_FROM_KIYO set
27	MOUNT_MORTAR_B1F	-	use ESCAPE_ROPE (or STRENGTH the boulder at (9,10) then warp 2 at (19,29))	ESCAPE_ROPE in bag	out of the cave
28	anywhere outdoors	SPAWN_BLACKTHORN	Fly to Blackthorn, heal	ENGINE_STORMBADGE, ENGINE_FLYPOINT_BLACKTHORN	at Blackthorn spawn (21,30); STATUSFLAGS_FLASH_F is now cleared
29	BLACKTHORN_CITY	south map connection	walk south	-	on ROUTE_45
30	ROUTE_45	warp 1 at (2,5)	step on warp	-	on DARK_CAVE_BLACKTHORN_ENTRANCE at (23,3)
31	DARK_CAVE_BLACKTHORN_ENTRANCE	-	use FLASH again	ENGINE_ZEPHYRBADGE	STATUSFLAGS_FLASH_F set
32	DARK_CAVE_BLACKTHORN_ENTRANCE	water in the middle of the map	SURF	ENGINE_FOGBADGE	crossing possible
33	DARK_CAVE_BLACKTHORN_ENTRANCE	DARKCAVEBLACKTHORNENTRANCE_PHARMACIST at (7,3)	stand adjacent, press A	EVENT_GOT_BLACKGLASSES_IN_DARK_CAVE clear, item pocket has room	BLACKGLASSES, flag set
34	DARK_CAVE_BLACKTHORN_ENTRANCE	objects at (7,22) and (21,24)	pick up both Poke Balls	matching events clear	TM_SNORE (TM13), REVIVE
35	DARK_CAVE_BLACKTHORN_ENTRANCE	warp 2 at (3,25)	step on warp	-	on DARK_CAVE_VIOLET_ENTRANCE at (17,1)
36	DARK_CAVE_VIOLET_ENTRANCE	water below (17,1)	SURF down	ENGINE_FOGBADGE	-
37	DARK_CAVE_VIOLET_ENTRANCE	rock at (16,14) or (7,14)	face rock, press A, answer yes	party knows ROCK_SMASH	rock gone; 40% chance of a KRABBY/SHUCKLE L15 battle
38	DARK_CAVE_VIOLET_ENTRANCE	object at (6,8)	pick up Poke Ball	EVENT_DARK_CAVE_VIOLET_ENTRANCE_POTION clear	POTION in bag
39	DARK_CAVE_VIOLET_ENTRANCE	warp 1 at (3,15)	step on warp	-	on ROUTE_31 at (34,5); FLASH bit cleared
40	ROUTE_31	-	Fly back to Blackthorn, heal	-	section complete

Optional extras this route skips, with their coordinates if a completionist bot wants them: DARK_CAVE_VIOLET_ENTRANCE objects at (36,22) FULL_HEAL and (35,9) HYPER_POTION plus the hidden ELIXER bg at (26,3) - all three sit on the north-east lobe of the map that the earlier Route 31 section already reaches.

---

5. Port coverage

Beat	Port file	Status
Map headers / dimensions for all six maps	tools/rom_manifest_gold.json (e.g. MOUNT_MORTAR_1F_OUTSIDE 20x18 group 3 map 49, DARK_CAVE_BLACKTHORN_ENTRANCE 15x18 group 3 map 71), read by src/import/RomExtractorGen2.lua	implemented (extracted from ROM, no hand-ported map file needed)
Warp / coord / bg / object event tables	src/import/RomExtractorGen2.lua (warps, coordEvents, bgEvents, objects around lines 787-862) -> src/world/gen2/Map.lua	implemented
PALETTE_DARK -> DARKNESS_PALSET and the FLASH override	src/world/gen2/Palettes.lua, asserted by tests/gen2_palettes_test.lua:118-129 (dark cave / dark cave with flash)	implemented
ResetFlashIfOutOfCave (FLASH dies on ROUTE/TOWN)	src/world/gen2/World.lua:5622-5625	implemented
FLASH / SURF / WATERFALL / STRENGTH badge gates	src/world/gen2/FieldMoves.lua:105-110 (FLASH=ZEPHYR, SURF=FOG, STRENGTH=PLAIN, WATERFALL=RISING), FieldMoves.flashFromMenu / surfFromMenu / waterfallFromMenu / strengthFromMenu	implemented
CheckMapCanWaterfall (facing UP, wTileUp) and the climb loop	src/world/gen2/FieldMoves.lua:253-266, src/world/gen2/World.lua:4030-4046 runWaterfall / waterfallStep, World:tryWaterfallOW (4217)	implemented
Strength boulder push (StrengthBoulderScript -> AskStrengthScript)	src/world/gen2/World.lua:5268-5274 (the boulder arm of World:interact), World:tryStrengthOW, driver tests/drivers/gold_icepath_boulder.lua	implemented
BIKEFLAGS_STRENGTH_ACTIVE_F cleared on map load	src/world/gen2/World.lua:5611-5613	implemented
Hidden items (BGEVENT_ITEM / hiddenitem)	src/world/gen2/HiddenItems.lua, wired at src/world/gen2/World.lua:5290-5296	implemented
verbosegiveitem BLACKGLASSES (the Dark Cave pharmacist)	src/script/gen2/Vm.lua:490-510, hook World.lua:831 giveItem	implemented
givepoke TYROGUE, 10 (Kiyo's reward)	src/script/gen2/Vm.lua:439-445, hook World.lua:812 givePoke	implemented
readvar VAR_PARTYCOUNT (Kiyo's "no room" branch)	src/world/gen2/World.lua:112 VAR_PARTYCOUNT = 0x01, read at World.lua:1225	implemented
loadtrainer / startbattle / winlosstext / reloadmapafterbattle	src/script/gen2/Vm.lua:806, :817, :886, :918; src/world/gen2/Trainers.lua; driver tests/drivers/gold_trainer_smoke.lua	implemented
Tyrogue's three-way stat evolution (what the reward mon becomes)	src/core/gen2/Evolution.lua:71, asserted by tests/gen2_evolution_test.lua:347-357	implemented
Repel / Max Repel step counter	src/world/gen2/World.lua:3382 World:useRepel, src/ui/gen2/PackMenu.lua:199-206	implemented
Picking up a Poke Ball (OBJECTTYPE_ITEMBALL)	extracted into obj.itemball by src/import/RomExtractorGen2.lua:2968-2969, but World:interact (src/world/gen2/World.lua:5256-5310) has arms for trainer, boulder, scriptKey, BGEVENT_READ and BGEVENT_ITEM and no itemball arm; CallAsm.lua:551 stubs TryReceiveItem out	missing - all 15 Poke Balls in this section are unobtainable in the port today
ROCK SMASH as a field move	src/script/gen2/CallAsm.lua:346-350 implements HasRockSmash, but line 526 stubs RockMonEncounter with the note "ROCK SMASH has no field-move path yet; RockMonMaps is unported"; World:interact's tile-event chain (World.lua:5301-5308) lists cut / whirlpool / waterfall / headbutt / surf and not rock smash, and nothing in src/ references SPRITEMOVEDATA_SMASHABLE_ROCK	missing - the four Dark Cave Violet rocks cannot be broken, and the Krabby/Shuckle table is unreachable
ESCAPE_ROPE / DIG as a field item	src/world/gen2/World.lua:3293-3302 World:useFieldItem handles ITEMFINDER, BICYCLE, SACRED_ASH, repels, trophy boxes and rods only. (Gen 1's path exists at src/ui/BagMenu.lua:231-240, but that is the Red/Blue engine, not the Gen 2 one.)	missing - the walkthrough's "use one of the Escape Ropes to get out" has no port path; the Strength-boulder exit at B1F (9,10) does work
Fly to Mahogany / Blackthorn	src/world/gen2/FieldMoves.lua:394-440 hasVisitedSpawn / flyPoints, flyFromMenu (504)	implemented
Wild encounter tables (grass + water + fishing) for these maps	extracted; src/world/gen2/FieldMoves.lua:162-177 canEncounterWildMon / encounterTable	implemented (not separately verified against these six maps)

No driver in tests/drivers/gold_*.lua visits Mt. Mortar or Dark Cave.

---

6. Unresolved / verify by hand

1. The walkthrough's Mt. Mortar item list is the HGSS list, not the GS list. It names Carbos, Escape Rope x2, Full Restore, Hyper Potion x2, Max Ether, Max Potion, Max Revive, PP Up, Rare Candy, Dragon Scale and "TM40 Aerial Ace". What is actually in maps/MountMortar*.asm is: ETHER, GUARD_SPEC, hidden HYPER_POTION (1F Outside); ESCAPE_ROPE, MAX_REVIVE, HYPER_POTION, hidden MAX_REPEL (1F Inside); MAX_POTION, RARE_CANDY, TM_DEFENSE_CURL, DRAGON_SCALE, ELIXER, ESCAPE_ROPE, hidden FULL_RESTORE (2F Inside); HYPER_POTION, FULL_HEAL, hidden MAX_REVIVE (B1F). No CARBOS, no PP_UP, no MAX_ETHER, no IRON anywhere in Mt. Mortar. TM40 is the right number but the move is DEFENSE_CURL (constants/item_constants.asm:261); Aerial Ace is a Gen 3 move that does not exist in this disassembly.
2. "grab the free Iron on the cliff" (1F Inside, after coming down from 2F). There is no IRON object on any Mt. Mortar map. The nearest items to warp 6 at (9,9) are the MAX_REVIVE ball at (16,10) and the hidden MAX_REPEL bg event at (31,9). Treat "Iron" as an HGSS-only pickup.
3. "surf clockwise around and reach a Hyper Potion and a Max Ether." There is no MAX_ETHER in Mt. Mortar. If the intended floor is B1F (the ladder from the central entrance) the pair is HYPER_POTION (31,17) + FULL_HEAL (4,16); if 2F, the closest analogue is ELIXER (8,9). Which one the author meant could not be determined from the asm.
4. Kiyo's prize money and EXP yields. The walkthrough gives 816G and 1012/1020 EXP. data/trainers/parties.asm only carries the class, name, type byte and party; the money formula lives in the battle engine's data/trainers/attributes.asm base-money table times level, which was not opened for this document. The party itself is verified: L34 HITMONLEE, L34 HITMONCHAN, TRAINERTYPE_NORMAL (default moves, no held items).
5. "a giant room where you can zig zag around ... and get two items, to include a Hyper Potion and Escape Rope." MOUNT_MORTAR_1F_INSIDE actually holds three balls (ESCAPE_ROPE (33,22), MAX_REVIVE (16,10), HYPER_POTION (12,21)) plus a hidden MAX_REPEL - but MAX_REVIVE and the hidden item sit on the section of the map only reachable from 2F, which is presumably why the walkthrough counts two.
6. "The west entrance and east entrance lead to each other." All three Route 42 doors land on the same map, MOUNT_MORTAR_1F_OUTSIDE; the west/east link runs through MOUNT_MORTAR_1F_INSIDE via warp pairs 5/6 (at y=21) and 8/9 (at y=13). The blk files were not decoded, so the exact walkable path between any two of these warps is not verified here - only the warp graph is.
7. Dark Cave Pokemon list. The walkthrough lists Zubat, Golbat, Geodude, Graveler, Magikarp and Wobbuffet - that is the DARK_CAVE_BLACKTHORN_ENTRANCE table exactly. It omits DUNSPARCE, which is slot 7 of DARK_CAVE_VIOLET_ENTRANCE and is on the map the route exits through.
8. Dark Cave item list. The walkthrough lists Blackglasses, Full Heal, Hyper Potion, Revive and TM13. The Full Heal (36,22) and Hyper Potion (35,9) are on DARK_CAVE_VIOLET_ENTRANCE's north-east lobe, which this route does not pass through; the hidden ELIXER at (26,3) is not mentioned at all. The POTION at (6,8) is named in the prose but missing from the list.
9. The Shuckle/Krabby rock-smash table (data/wild/treemon_maps.asm:46, data/wild/treemons.asm:91) is real and reachable at DARK_CAVE_VIOLET_ENTRANCE, but the walkthrough never mentions it. Worth flagging to a bot author as a cheap Shuckle source.
10. MOUNT_MORTAR_1F_OUTSIDE object 2 flag naming. The item is GUARD_SPEC but the event flag is EVENT_MOUNT_MORTAR_1F_OUTSIDE_REVIVE (constants/event_flags.asm:1053). Verbatim from the disassembly; not a transcription error here, but it will look like one to anyone grepping by item name.
11. Mahogany Town and Blackthorn City interiors (Poke Center, Mart, gym) were not opened for this document - only their data/maps/maps.asm header rows and data/maps/spawn_points.asm entries. Those maps belong to neighbouring sections.