gen1recomp/docs/gold-walkthrough/asm-walk/section-18-pok-mon-league.md

Section 18 - Pokémon League

Source: ../section-18-pok-mon-league.txt Maps covered: MAP_ROUTE_23, MAP_INDIGO_PLATEAU_POKECENTER_1F, MAP_WILLS_ROOM, MAP_KOGAS_ROOM, MAP_BRUNOS_ROOM, MAP_KARENS_ROOM, MAP_LANCES_ROOM, MAP_HALL_OF_FAME Badges / key milestones in this section: no badge. ENGINE_FLYPOINT_INDIGO_PLATEAU (fly point), EVENT_BEAT_ELITE_4_WILL/KOGA/BRUNO/KAREN, EVENT_BEAT_CHAMPION_LANCE, EVENT_BEAT_ELITE_FOUR, STATUSFLAGS_HALL_OF_FAME_F (Hall of Fame induction -> credits -> post-game respawn at SPAWN_NEW_BARK).

All eight maps live in map group INDIGO (group 16, constants/map_constants.asm:321).

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1. Route order

#	Map constant	asm file	Enter via	Leaves via	Why (walkthrough beat)
0	MAP_VICTORY_ROAD	maps/VictoryRoad.asm	(previous section)	warp 10 at (13, 5) -> ROUTE_23 warp 3	Victory Road's north exit; the walkthrough opens already standing on the Plateau approach
1	MAP_ROUTE_23	maps/Route23.asm	warps 3/4 at (9, 13)/(10, 13) from Victory Road	warps 1/2 at (9, 5)/(10, 5) -> INDIGO_PLATEAU_POKECENTER_1F warps 1/2	"Route 32 is very short, and you'll immediately be at the Pokémon League building" (the FAQ means Route 23). MAPCALLBACK_NEWMAP registers the fly point here
2	MAP_INDIGO_PLATEAU_POKECENTER_1F	maps/IndigoPlateauPokecenter1F.asm	warps 1/2 at (5, 13)/(6, 13)	warp 4 at (14, 3) -> WILLS_ROOM warp 1	Heal (nurse, left), buy (clerk, right), optional Abra teleport home, optional Mon/Wed rival ambush, then through the north door
3	MAP_WILLS_ROOM	maps/WillsRoom.asm	warp 1 at (5, 17)	warps 2/3 at (4, 2)/(5, 2) -> KOGAS_ROOM warps 1/2	Elite Four 1 - Will
4	MAP_KOGAS_ROOM	maps/KogasRoom.asm	warps 1/2 at (4, 17)/(5, 17)	warps 3/4 at (4, 2)/(5, 2) -> BRUNOS_ROOM warps 1/2	Elite Four 2 - Koga
5	MAP_BRUNOS_ROOM	maps/BrunosRoom.asm	warps 1/2 at (4, 17)/(5, 17)	warps 3/4 at (4, 2)/(5, 2) -> KARENS_ROOM warps 1/2	Elite Four 3 - Bruno
6	MAP_KARENS_ROOM	maps/KarensRoom.asm	warps 1/2 at (4, 17)/(5, 17)	warps 3/4 at (4, 2)/(5, 2) -> LANCES_ROOM warps 1/2	Elite Four 4 - Karen
7	MAP_LANCES_ROOM	maps/LancesRoom.asm	warps 1/2 at (4, 23)/(5, 23)	scripted warp HALL_OF_FAME, 4, 13 at the tail of LancesRoomLanceScript (warps 3/4 at (4, 0)/(5, 0) are the same door)	Champion Lance, then the Mary / Prof. Oak cutscene
8	MAP_HALL_OF_FAME	maps/HallOfFame.asm	scripted warp to (4, 13)	halloffame -> Credits -> title screen	Induction, credits, "The End"

Post-credits: engine/menus/intro_menu.asm .SpawnAfterE4 sends the next CONTINUE to SPAWN_NEW_BARK, not to the saved position. That is the start of the Kanto half and belongs to the next section.

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2. Maps

MAP_ROUTE_23

• Script: maps/Route23.asm
• Blocks: maps/Route23.blk
• Header (data/maps/maps.asm:349): map Route23, TILESET_KANTO, TOWN, LANDMARK_ROUTE_23, MUSIC_INDIGO_PLATEAU, FALSE, PALETTE_AUTO, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:322 -> map_const ROUTE_23, 10, 9 (10 x 9 blocks = 20 x 18 tiles)
• Attributes: data/maps/attributes.asm:397 -> map_attributes Route23, ROUTE_23, $0f, no connections (despite TOWN environment)

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	9	5	INDIGO_PLATEAU_POKECENTER_1F	1
2	10	5	INDIGO_PLATEAU_POKECENTER_1F	2
3	9	13	VICTORY_ROAD	10
4	10	13	VICTORY_ROAD	10

Coord events - none (def_coord_events is empty).

BG events (def_bg_events)

x	y	type	script/item
11	7	BGEVENT_READ	IndigoPlateauSign (IndigoPlateauSignText)

Object events - none (def_object_events is empty).

Scripts of interest

• Route23FlypointCallback (50:5888), registered as callback MAPCALLBACK_NEWMAP. Body is two opcodes: setflag ENGINE_FLYPOINT_INDIGO_PLATEAU / endcallback. This is the whole of the walkthrough's "You'll now be able to fly to this location directly", and it is also the gate on the Kanto half of the Fly map (see section 5 - Blockers).
• IndigoPlateauSign -> jumptext IndigoPlateauSignText.

Flags and events

constant	defined in	read/written by	meaning for a bot
ENGINE_FLYPOINT_INDIGO_PLATEAU	constants/engine_flags.asm:78	set by Route23FlypointCallback	after one step onto Route 23, Fly to Indigo Plateau is available; also unlocks the Kanto Fly map

Items - none.

Trainers - none.

Wild encounters - none. ROUTE_23 has no entry in data/wild/johto_grass.asm, data/wild/kanto_grass.asm, data/wild/johto_water.asm or data/wild/kanto_water.asm (grepped; kanto_grass.asm jumps ROUTE_22 -> ROUTE_24). The header's FISHGROUP_SHORE is the header default and there is no water to fish from.

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MAP_INDIGO_PLATEAU_POKECENTER_1F

• Script: maps/IndigoPlateauPokecenter1F.asm
• Blocks: maps/IndigoPlateauPokecenter1F.blk
• Header (data/maps/maps.asm:350): map IndigoPlateauPokecenter1F, TILESET_POKECENTER, INDOOR, LANDMARK_INDIGO_PLATEAU, MUSIC_INDIGO_PLATEAU, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:323 -> map_const INDIGO_PLATEAU_POKECENTER_1F, 9, 7 (18 x 14 tiles)
• Attributes: data/maps/attributes.asm:598, border $00, no connections

object_const_def order (the ids moveobject / applymovement / appear take):

0 INDIGOPLATEAUPOKECENTER1F_NURSE
1 INDIGOPLATEAUPOKECENTER1F_CLERK
2 INDIGOPLATEAUPOKECENTER1F_COOLTRAINER_M
3 INDIGOPLATEAUPOKECENTER1F_RIVAL
4 INDIGOPLATEAUPOKECENTER1F_GRAMPS
5 INDIGOPLATEAUPOKECENTER1F_ABRA

(the macro is const_def 2, so the emitted numbers start at 2)

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	5	13	ROUTE_23	1
2	6	13	ROUTE_23	2
3	0	13	POKECENTER_2F	1
4	14	3	WILLS_ROOM	1

Coord events (def_coord_events)

scene	x	y	script label	effect
SCENE_INDIGOPLATEAUPOKECENTER1F_RIVAL_BATTLE (= 0)	16	4	PlateauRivalBattle1 (5a:48ff)	rival walks up from the left column and blocks you
SCENE_INDIGOPLATEAUPOKECENTER1F_RIVAL_BATTLE (= 0)	17	4	PlateauRivalBattle2 (5a:4940)	same fight, approached from the right column

BG events - none.

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
..._NURSE	SPRITE_NURSE	3	7	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	IndigoPlateauPokecenter1FNurseScript	-1
..._CLERK	SPRITE_CLERK	11	7	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	IndigoPlateauPokecenter1FClerkScript	-1
..._COOLTRAINER_M	SPRITE_COOLTRAINER_M	11	11	SPRITEMOVEDATA_WANDER (radius 2,2)	OBJECTTYPE_SCRIPT	IndigoPlateauPokecenter1FCooltrainerMScript	-1
..._RIVAL	SPRITE_RIVAL	16	9	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_SCRIPT	ObjectEvent	EVENT_INDIGO_PLATEAU_POKECENTER_RIVAL
..._GRAMPS	SPRITE_GRAMPS (PAL_NPC_BLUE)	1	9	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	TeleportGuyScript	EVENT_TELEPORT_GUY
..._ABRA	SPRITE_JYNX (PAL_NPC_BROWN)	0	9	SPRITEMOVEDATA_POKEMON	OBJECTTYPE_SCRIPT	AbraScript	EVENT_TELEPORT_GUY

Note the last row: the "Abra" the walkthrough names is declared with SPRITE_JYNX (constants/sprite_constants.asm:122; data/sprites/sprite_mons.asm maps that slot to JYNX). Its script is AbraScript, which does cry ABRA. Verbatim from the file, not a typo of mine.

An object's event flag hides it when the flag is set (Script_disappear sets, Script_appear clears - engine/overworld/scripting.asm:879-898). EVENT_INDIGO_PLATEAU_POKECENTER_RIVAL is set on New Game by engine/events/std_scripts.asm:556 (the EVENT_INITIALIZED_EVENTS block), so the rival starts hidden. EVENT_TELEPORT_GUY is not in that block, so the old man and his Pokémon are visible from the first visit.

Scripts of interest

• IndigoPlateauPokecenter1FPrepareElite4Callback (5a:48b6), a callback MAPCALLBACK_NEWMAP. This is the single most important script in the section for a bot: every time you set foot in the lobby it resets the whole Elite Four run.

  setmapscene WILLS_ROOM,   SCENE_WILLSROOM_LOCK_DOOR
  setmapscene KOGAS_ROOM,   SCENE_KOGASROOM_LOCK_DOOR
  setmapscene BRUNOS_ROOM,  SCENE_BRUNOSROOM_LOCK_DOOR
  setmapscene KARENS_ROOM,  SCENE_KARENSROOM_LOCK_DOOR
  setmapscene LANCES_ROOM,  SCENE_LANCESROOM_LOCK_DOOR
  setmapscene HALL_OF_FAME, SCENE_HALLOFFAME_ENTER
  clearevent EVENT_{WILLS,KOGAS,BRUNOS,KARENS,LANCES}_ROOM_ENTRANCE_CLOSED
  clearevent EVENT_{WILLS,KOGAS,BRUNOS,KARENS,LANCES}_ROOM_EXIT_OPEN
  clearevent EVENT_BEAT_ELITE_4_WILL / _KOGA / _BRUNO / _KAREN
  clearevent EVENT_BEAT_CHAMPION_LANCE
  setevent   EVENT_LANCES_ROOM_OAK_AND_MARY   ; hide Oak + Mary again
  endcallback
  

  Consequences: the five EVENT_BEAT_ELITE_4_* flags are not durable progress markers - they only survive within one uninterrupted run. The durable "I beat the League" flag is EVENT_BEAT_ELITE_FOUR, set in HallOfFameEnterScript.

• PlateauRivalBattle1 / PlateauRivalBattle2 -> PlateauRivalBattleCommon. Guards, in order:

  1. checkevent EVENT_BEAT_RIVAL_IN_MT_MOON / iffalse -> done (so this only ever fires post-game, after the Mt. Moon rematch),
  2. checkflag ENGINE_INDIGO_PLATEAU_RIVAL_FIGHT / iftrue -> done (once a day),
  3. readvar VAR_WEEKDAY with ifequal SUNDAY / TUESDAY / THURSDAY / FRIDAY / SATURDAY -> done. Only Monday and Wednesday.

  Then moveobject/appear the rival, showemote EMOTE_SHOCK, special FadeOutMusic, a 5-step applymovement, playmusic MUSIC_RIVAL_ENCOUNTER, setevent EVENT_INDIGO_PLATEAU_POKECENTER_RIVAL, then a starter-dependent loadtrainer RIVAL2, RIVAL2_2_* + startbattle. Afterwards PlateauRivalPostBattle plays MUSIC_RIVAL_AFTER, walks him off with disappear, and setflag ENGINE_INDIGO_PLATEAU_RIVAL_FIGHT.

• IndigoPlateauPokecenter1FNurseScript -> jumpstd PokecenterNurseScript (free heal).

• IndigoPlateauPokecenter1FClerkScript -> pokemart MARTTYPE_STANDARD, MART_INDIGO_PLATEAU.

• TeleportGuyScript (5a:49e5): yesorno; on yes, playsound SFX_WARP_TO, special FadeOutToWhite, warp NEW_BARK_TOWN, 13, 6. The walkthrough's "Abra will teleport you back" lands you in New Bark Town, specifically, not "back to Johto" generically.

• AbraScript: text + cry ABRA, nothing else.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_INDIGO_PLATEAU_POKECENTER_RIVAL	constants/event_flags.asm:1309	set by std_scripts.asm:556 on New Game and by PlateauRivalBattleCommon; cleared by appear	hides the rival object
EVENT_TELEPORT_GUY	constants/event_flags.asm:1310	set by HallOfFameEnterScript	after the Hall of Fame the old man and his Pokémon vanish; the ride home is a pre-champion service only
EVENT_BEAT_RIVAL_IN_MT_MOON	constants/event_flags.asm:456	read by both PlateauRivalBattle*	precondition for the lobby ambush
ENGINE_INDIGO_PLATEAU_RIVAL_FIGHT	constants/engine_flags.asm:111 (in the wDailyFlags2 block)	read/set by PlateauRivalBattle*	daily one-shot; cleared with the rest of the daily flags at midnight
SCENE_INDIGOPLATEAUPOKECENTER1F_RIVAL_BATTLE	the map's own def_scene_scripts (value 0)	coord events	see the quirk note below

Scene quirk worth knowing: this map declares exactly one scene script, so SCENE_INDIGOPLATEAUPOKECENTER1F_RIVAL_BATTLE == 0, which is also the default value of wMapScenes for the map. PlateauRivalPostBattle's setscene SCENE_INDIGOPLATEAUPOKECENTER1F_RIVAL_BATTLE therefore writes 0 over 0 and the two coord events stay armed forever. The real one-shot guards are ENGINE_INDIGO_PLATEAU_RIVAL_FIGHT and the weekday check.

Items

item	how obtained	source (label / bg_event / hidden)	one-time flag
ULTRA_BALL, MAX_REPEL, HYPER_POTION, MAX_POTION, FULL_RESTORE, REVIVE, FULL_HEAL	bought	MartIndigoPlateau (data/items/marts.asm:384, symbol 05:645a), opened by IndigoPlateauPokecenter1FClerkScript	n/a

This is where the walkthrough's "ten Hyper Potions, ten Revives, ten Full Heals" shopping list is actually satisfiable - the mart carries all three plus Full Restore.

Trainers

const	class	id	party (data/trainers/parties.asm label)	script label	rematch/phone
RIVAL2	RIVAL2 ($2a)	RIVAL2_2_CHIKORITA / RIVAL2_2_CYNDAQUIL / RIVAL2_2_TOTODILE (chosen by which starter the player took: checkevent EVENT_GOT_TOTODILE_FROM_ELM -> Chikorita team, EVENT_GOT_CHIKORITA_FROM_ELM -> Cyndaquil team, else Totodile team)	Rival2Group entries 4/5/6	PlateauRivalBattleCommon	daily, Mon/Wed only, post Mt. Moon

Rival2Group (4)-(6), all TRAINERTYPE_MOVES: 45 SNEASEL, 48 CROBAT, 45 MAGNETON, 46 GENGAR, 46 ALAKAZAM, and then 50 MEGANIUM / 50 TYPHLOSION / 50 FERALIGATR respectively. The walkthrough does not mention this fight at all - a bot that walks the lobby on a Monday will hit it whether or not it planned to.

Wild encounters - none (indoor).

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MAP_WILLS_ROOM

• Script: maps/WillsRoom.asm
• Blocks: maps/WillsRoom.blk
• Header (data/maps/maps.asm:351): map WillsRoom, TILESET_ELITE_FOUR_ROOM, INDOOR, LANDMARK_INDIGO_PLATEAU, MUSIC_INDIGO_PLATEAU, TRUE, PALETTE_DAY, FISHGROUP_SHORE (the TRUE is the phone-service flag: no phone calls in any Elite Four room)
• Dimensions: constants/map_constants.asm:324 -> map_const WILLS_ROOM, 5, 9 (10 x 18 tiles)
• Attributes: data/maps/attributes.asm:599, border $00, no connections

object_const_def: WILLSROOM_WILL (emitted id 2).

Scene ids from the map's own def_scene_scripts: SCENE_WILLSROOM_LOCK_DOOR = 0, SCENE_WILLSROOM_NOOP = 1.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	5	17	INDIGO_PLATEAU_POKECENTER_1F	4
2	4	2	KOGAS_ROOM	1
3	5	2	KOGAS_ROOM	2

Coord events - none. The door-lock cutscene is a scene script, not a coord event: scene_script WillsRoomLockDoorScene, SCENE_WILLSROOM_LOCK_DOOR fires on map load via sdefer.

BG events - none.

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
WILLSROOM_WILL	SPRITE_WILL (PAL_NPC_RED)	5	7	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	WillScript_Battle	-1

Scripts of interest

• WillsRoomDoorLocksBehindYouScript (5a:4d8c), deferred by the scene script: applymovement PLAYER, WillsRoom_EnterMovement (4 x step UP, so you enter at (5, 17) and end at (5, 13)), reanchormap $85, playsound SFX_STRENGTH, earthquake 80, changeblock 4, 14, $2a (wall), refreshmap, setscene SCENE_WILLSROOM_NOOP, setevent EVENT_WILLS_ROOM_ENTRANCE_CLOSED. changeblock operands are in the same tile space as warps but are halved internally (Script_changeblock adds 4 then GetBlockLocation shifts right, home/map.asm:2099), so 4, 14 is the block covering tiles (4..5, 14..15) - the corridor square immediately below where the walk-in leaves you. That is what makes the walkthrough's "You can't go back to the Pokémon Center to heal between battles" literally true.

• WillsRoomDoorsCallback, callback MAPCALLBACK_TILES: re-applies changeblock 4, 14, $2a while EVENT_WILLS_ROOM_ENTRANCE_CLOSED is set and changeblock 4, 2, $16 (open door) while EVENT_WILLS_ROOM_EXIT_OPEN is set, so the room's geometry survives a battle reload.

• WillScript_Battle (5a:4da4): faceplayer, opentext, checkevent EVENT_BEAT_ELITE_4_WILL / iftrue WillScript_AfterBattle, writetext WillScript_WillBeforeText, winlosstext WillScript_WillBeatenText, 0, loadtrainer WILL, WILL1, startbattle, reloadmapafterbattle, setevent EVENT_BEAT_ELITE_4_WILL, defeat text, playsound SFX_ENTER_DOOR, changeblock 4, 2, $16 (open the north door), refreshmap, setevent EVENT_WILLS_ROOM_EXIT_OPEN.

  Note there is no winlosstext loss branch (the second operand is 0) and no BATTLETYPE_CANLOSE: losing to any Elite Four member is an ordinary blackout, which is why the FAQ says "If you lose, you have to start all over".

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_WILLS_ROOM_ENTRANCE_CLOSED	constants/event_flags.asm:440	set by WillsRoomDoorLocksBehindYouScript, read by WillsRoomDoorsCallback, cleared by the lobby callback	south door sealed
EVENT_WILLS_ROOM_EXIT_OPEN	constants/event_flags.asm:441	set by WillScript_Battle, read by WillsRoomDoorsCallback, cleared by the lobby callback	north door open -> (4, 2) / (5, 2) are walkable warps
EVENT_BEAT_ELITE_4_WILL	constants/event_flags.asm:980	set by WillScript_Battle, cleared by the lobby callback	run-local "Will is done"
SCENE_WILLSROOM_LOCK_DOOR / SCENE_WILLSROOM_NOOP	this map's def_scene_scripts (0 / 1)	setmapscene from the lobby; setscene in the lock script	0 = play the seal-in cutscene on entry

Items - none.

Trainers

const	class	id	party	script label	rematch/phone
WILL1	WILL ($b)	1	WillGroup (data/trainers/parties.asm:197, symbol 0e:5bf4)	WillScript_Battle	none

WillGroup, TRAINERTYPE_MOVES, in send-out order:

#	lvl	species	moves
1	40	XATU	Quick Attack, Future Sight, Confuse Ray, Psychic
2	41	JYNX	DoubleSlap, Lovely Kiss, Ice Punch, Psychic
3	41	EXEGGUTOR	Reflect, Leech Seed, Egg Bomb, Psychic
4	41	SLOWBRO	Curse, Amnesia, Body Slam, Psychic
5	42	XATU	Quick Attack, Future Sight, Confuse Ray, Psychic

Class attributes (data/trainers/attributes.asm, ; Will block): items MAX_POTION, NO_ITEM; base reward 25; DVs atk 13 / def 12 / spd 13 / spc 13 (data/trainers/dvs.asm:15). Money = base reward x level of the last enemy mon (ComputeTrainerReward, engine/battle/read_trainer_party.asm:300) = 25 x 42 = 1050.

Wild encounters - none.

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MAP_KOGAS_ROOM

• Script: maps/KogasRoom.asm
• Blocks: maps/KogasRoom.blk
• Header (data/maps/maps.asm:352): map KogasRoom, TILESET_ELITE_FOUR_ROOM, INDOOR, LANDMARK_INDIGO_PLATEAU, MUSIC_INDIGO_PLATEAU, TRUE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:325 -> map_const KOGAS_ROOM, 5, 9
• Attributes: data/maps/attributes.asm:600, border $00

object_const_def: KOGASROOM_KOGA. Scenes: SCENE_KOGASROOM_LOCK_DOOR = 0, SCENE_KOGASROOM_NOOP = 1.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	4	17	WILLS_ROOM	2
2	5	17	WILLS_ROOM	3
3	4	2	BRUNOS_ROOM	1
4	5	2	BRUNOS_ROOM	2

Coord events - none. BG events - none.

Object events

const	sprite	x	y	movement	type	script label	event flag
KOGASROOM_KOGA	SPRITE_KOGA (PAL_NPC_BLUE)	5	7	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	KogaScript_Battle	-1

Scripts of interest

Structurally identical to Will's room: KogasRoomDoorLocksBehindYouScript (4 x step UP, changeblock 4, 14, $2a, setevent EVENT_KOGAS_ROOM_ENTRANCE_CLOSED, setscene SCENE_KOGASROOM_NOOP), KogasRoomDoorsCallback (MAPCALLBACK_TILES), and KogaScript_Battle (5a:5006) -> loadtrainer KOGA, KOGA1 / setevent EVENT_BEAT_ELITE_4_KOGA / changeblock 4, 2, $16 / setevent EVENT_KOGAS_ROOM_EXIT_OPEN.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_KOGAS_ROOM_ENTRANCE_CLOSED	constants/event_flags.asm:442	lock script / tiles callback	south door sealed
EVENT_KOGAS_ROOM_EXIT_OPEN	constants/event_flags.asm:443	KogaScript_Battle / tiles callback	north door open
EVENT_BEAT_ELITE_4_KOGA	constants/event_flags.asm:981	KogaScript_Battle	run-local

Trainers

const	class	id	party	script label	rematch/phone
KOGA1	KOGA ($f)	1	KogaGroup (data/trainers/parties.asm:249, symbol 0e:5c89)	KogaScript_Battle	none

#	lvl	species	moves
1	40	ARIADOS	Double Team, Spider Web, Baton Pass, Giga Drain
2	41	VENOMOTH	Supersonic, Gust, Psychic, Toxic
3	43	FORRETRESS	Protect, Swift, Explosion, Spikes
4	42	MUK	Minimize, Acid Armor, Sludge Bomb, Toxic
5	44	CROBAT	Double Team, Quick Attack, Wing Attack, Toxic

Class attributes (; Koga): items FULL_HEAL, FULL_RESTORE (the walkthrough's "three Full Restores" is HGSS; in GS the AI holds one Full Heal and one Full Restore per class-attribute slot); base reward 25; DVs 13/12/13/13 (data/trainers/dvs.asm:19). Money = 25 x 44 = 1100.

Wild encounters - none.

---

MAP_BRUNOS_ROOM

• Script: maps/BrunosRoom.asm
• Blocks: maps/BrunosRoom.blk
• Header (data/maps/maps.asm:353): map BrunosRoom, TILESET_ELITE_FOUR_ROOM, INDOOR, LANDMARK_INDIGO_PLATEAU, MUSIC_INDIGO_PLATEAU, TRUE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:326 -> map_const BRUNOS_ROOM, 5, 9
• Attributes: data/maps/attributes.asm:601, border $00

object_const_def: BRUNOSROOM_BRUNO. Scenes: SCENE_BRUNOSROOM_LOCK_DOOR = 0, SCENE_BRUNOSROOM_NOOP = 1.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	4	17	KOGAS_ROOM	3
2	5	17	KOGAS_ROOM	4
3	4	2	KARENS_ROOM	1
4	5	2	KARENS_ROOM	2

Coord events - none. BG events - none.

Object events

const	sprite	x	y	movement	type	script label	event flag
BRUNOSROOM_BRUNO	SPRITE_BRUNO (PAL_NPC_BROWN)	5	7	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	BrunoScript_Battle	-1

Scripts of interest - BrunosRoomDoorLocksBehindYouScript, BrunosRoomDoorsCallback, BrunoScript_Battle (5a:5271); same shape as Will's room, with loadtrainer BRUNO, BRUNO1 and setevent EVENT_BEAT_ELITE_4_BRUNO / EVENT_BRUNOS_ROOM_EXIT_OPEN.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_BRUNOS_ROOM_ENTRANCE_CLOSED	constants/event_flags.asm:444	lock script / tiles callback	south door sealed
EVENT_BRUNOS_ROOM_EXIT_OPEN	constants/event_flags.asm:445	BrunoScript_Battle / tiles callback	north door open
EVENT_BEAT_ELITE_4_BRUNO	constants/event_flags.asm:982	BrunoScript_Battle	run-local

Trainers

const	class	id	party	script label	rematch/phone
BRUNO1	BRUNO ($d)	1	BrunoGroup (data/trainers/parties.asm:229, symbol 0e:5c3d)	BrunoScript_Battle	none

#	lvl	species	moves
1	42	HITMONTOP	Pursuit, Quick Attack, Dig, Detect
2	42	HITMONLEE	Swagger, Double Kick, Hi Jump Kick, Foresight
3	42	HITMONCHAN	ThunderPunch, Ice Punch, Fire Punch, Mach Punch
4	43	ONIX	Bind, Earthquake, Sandstorm, Rock Slide
5	46	MACHAMP	Rock Slide, Foresight, Vital Throw, Cross Chop

Class attributes (; Bruno): items MAX_POTION, NO_ITEM; base reward 25; DVs 13/12/13/13 (data/trainers/dvs.asm:17). Money = 25 x 46 = 1150.

Wild encounters - none.

---

MAP_KARENS_ROOM

• Script: maps/KarensRoom.asm
• Blocks: maps/KarensRoom.blk
• Header (data/maps/maps.asm:354): map KarensRoom, TILESET_ELITE_FOUR_ROOM, INDOOR, LANDMARK_INDIGO_PLATEAU, MUSIC_INDIGO_PLATEAU, TRUE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:327 -> map_const KARENS_ROOM, 5, 9
• Attributes: data/maps/attributes.asm:602, border $00

object_const_def: KARENSROOM_KAREN. Scenes: SCENE_KARENSROOM_LOCK_DOOR = 0, SCENE_KARENSROOM_NOOP = 1.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	4	17	BRUNOS_ROOM	3
2	5	17	BRUNOS_ROOM	4
3	4	2	LANCES_ROOM	1
4	5	2	LANCES_ROOM	2

Coord events - none. BG events - none.

Object events

const	sprite	x	y	movement	type	script label	event flag
KARENSROOM_KAREN	SPRITE_KAREN (PAL_NPC_RED)	5	7	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	KarenScript_Battle	-1

Scripts of interest - KarensRoomDoorLocksBehindYouScript, KarensRoomDoorsCallback, KarenScript_Battle (5a:549a) with loadtrainer KAREN, KAREN1, setevent EVENT_BEAT_ELITE_4_KAREN, changeblock 4, 2, $16, setevent EVENT_KARENS_ROOM_EXIT_OPEN.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_KARENS_ROOM_ENTRANCE_CLOSED	constants/event_flags.asm:446	lock script / tiles callback	south door sealed
EVENT_KARENS_ROOM_EXIT_OPEN	constants/event_flags.asm:447	KarenScript_Battle / tiles callback	north door open
EVENT_BEAT_ELITE_4_KAREN	constants/event_flags.asm:983	KarenScript_Battle	run-local

Trainers

const	class	id	party	script label	rematch/phone
KAREN1	KAREN ($e)	1	KarenGroup (data/trainers/parties.asm:239, symbol 0e:5c63)	KarenScript_Battle	none

#	lvl	species	moves
1	42	UMBREON	Sand-Attack, Confuse Ray, Faint Attack, Mean Look
2	42	VILEPLUME	Stun Spore, Acid, Moonlight, Petal Dance
3	45	GENGAR	Lick, Spite, Curse, Destiny Bond
4	44	MURKROW	Quick Attack, Whirlwind, Pursuit, Faint Attack
5	47	HOUNDOOM	Roar, Pursuit, Flamethrower, Crunch

Class attributes (; Karen): items FULL_HEAL, MAX_POTION - no Full Restore, contra the walkthrough; base reward 25; DVs atk 7 / def 15 / spd 13 / spc 15 (data/trainers/dvs.asm:18, the only Elite Four member with a different DV row). Money = 25 x 47 = 1175.

Wild encounters - none.

---

MAP_LANCES_ROOM

• Script: maps/LancesRoom.asm
• Blocks: maps/LancesRoom.blk
• Header (data/maps/maps.asm:355): map LancesRoom, TILESET_CHAMPIONS_ROOM, INDOOR, LANDMARK_INDIGO_PLATEAU, MUSIC_INDIGO_PLATEAU, TRUE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:328 -> map_const LANCES_ROOM, 5, 12 (10 x 24 tiles - the tallest room in the run)
• Attributes: data/maps/attributes.asm:603, border $00

object_const_def: LANCESROOM_LANCE, LANCESROOM_MARY, LANCESROOM_OAK. Scenes: SCENE_LANCESROOM_LOCK_DOOR = 0, SCENE_LANCESROOM_APPROACH_LANCE = 1. Note this map's second scene is not a noop-by-name: it is the state in which the two coord events are live.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	4	23	KARENS_ROOM	3
2	5	23	KARENS_ROOM	4
3	4	0	HALL_OF_FAME	1
4	5	0	HALL_OF_FAME	2

Coord events (def_coord_events)

scene	x	y	script label	effect
SCENE_LANCESROOM_APPROACH_LANCE (= 1)	4	5	Script_ApproachLanceFromLeft (5a:5716)	FadeOutMusic, walk UP UP UP + face right, fall into LancesRoomLanceScript
SCENE_LANCESROOM_APPROACH_LANCE (= 1)	5	5	Script_ApproachLanceFromRight (5a:5720)	FadeOutMusic, walk UP LEFT UP UP + face right, then the same

BG events - none.

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
LANCESROOM_LANCE	SPRITE_LANCE	5	2	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	LancesRoomLanceScript	-1
LANCESROOM_MARY	SPRITE_TEACHER (PAL_NPC_GREEN)	4	7	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_SCRIPT	ObjectEvent	EVENT_LANCES_ROOM_OAK_AND_MARY
LANCESROOM_OAK	SPRITE_OAK	4	7	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_SCRIPT	ObjectEvent	EVENT_LANCES_ROOM_OAK_AND_MARY

Mary and Oak share the same spawn tile (4, 7) and the same hide flag; both are appeared one at a time during the cutscene.

Scripts of interest

• LancesRoomDoorLocksBehindYouScript (5a:56ff): 4 x step UP from (4|5, 23) to y = 19, reanchormap $85, SFX_STRENGTH, earthquake 80, changeblock 4, 22, $34 (wall - the champion's-room tileset uses a different wall block id than the Elite Four rooms' $2a), refreshmap, setscene SCENE_LANCESROOM_APPROACH_LANCE, setevent EVENT_LANCES_ROOM_ENTRANCE_CLOSED.

• LancesRoomLanceScript (5a:5727), the section's climax: turnobject LANCESROOM_LANCE, LEFT, intro text, winlosstext LanceBattleWinText, 0, setlasttalked LANCESROOM_LANCE, loadtrainer CHAMPION, LANCE, startbattle, dontrestartmapmusic, reloadmapafterbattle, setevent EVENT_BEAT_CHAMPION_LANCE, after-battle text, SFX_ENTER_DOOR, changeblock 4, 0, $0b (open the north door), setevent EVENT_LANCES_ROOM_ENTRANCE_CLOSED (again - the script re-sets the entrance flag here, it does not clear it), then musicfadeout MUSIC_BEAUTY_ENCOUNTER, 16 and the cutscene: appear LANCESROOM_MARY -> LancesRoomMovementData_MaryRushesIn -> appear LANCESROOM_OAK -> LancesRoomMovementData_OakWalksIn -> follow/stopfollow pairs -> Mary's interview attempt -> Lance leads the player north (follow LANCESROOM_LANCE, PLAYER, LancesRoomMovementData_LanceLeadsPlayerToHallOfFame), disappear both, then special FadeOutToWhite and warp HALL_OF_FAME, 4, 13.

  This is the only exit that matters: warps 3/4 exist but the script drives the transition itself.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_LANCES_ROOM_ENTRANCE_CLOSED	constants/event_flags.asm:448	lock script + LancesRoomLanceScript; read by LancesRoomDoorsCallback	south door sealed
EVENT_LANCES_ROOM_EXIT_OPEN	constants/event_flags.asm:449	read by LancesRoomDoorsCallback; cleared by the lobby callback	never set by this map - the north door is opened by a direct changeblock 4, 0, $0b in the battle script, and the flag only matters if you re-enter the map
EVENT_BEAT_CHAMPION_LANCE	constants/event_flags.asm:984	set by LancesRoomLanceScript, cleared by the lobby callback	run-local
EVENT_LANCES_ROOM_OAK_AND_MARY	constants/event_flags.asm:1281	set on New Game (std_scripts.asm:523) and by the lobby callback; cleared by appear during the cutscene	hides Mary and Oak until the champion falls
SCENE_LANCESROOM_APPROACH_LANCE	this map's def_scene_scripts (= 1)	setscene at the end of the lock script	arms the two coord events at y = 5

Items - none.

Trainers

const	class	id	party	script label	rematch/phone
LANCE	CHAMPION ($10)	1	ChampionGroup (data/trainers/parties.asm:259, symbol 0e:5cae)	LancesRoomLanceScript	none

#	lvl	species	moves
1	44	GYARADOS	Flail, Rain Dance, Surf, Hyper Beam
2	47	DRAGONITE	Thunder Wave, Twister, Thunder, Hyper Beam
3	47	DRAGONITE	Thunder Wave, Twister, Blizzard, Hyper Beam
4	46	AERODACTYL	Wing Attack, AncientPower, Rock Slide, Hyper Beam
5	46	CHARIZARD	Flamethrower, Wing Attack, Slash, Hyper Beam
6	50	DRAGONITE	Fire Blast, Safeguard, Outrage, Hyper Beam

Class attributes (; Champion): items FULL_HEAL, FULL_RESTORE; base reward 25; DVs 13/12/13/13 (data/trainers/dvs.asm:20). Money = 25 x 50 = 1250. data/trainers/leaders.asm:20 lists CHAMPION, but the file's own comment notes CHAMPION and RED are unused for the leader battle-music check.

Wild encounters - none.

---

MAP_HALL_OF_FAME

• Script: maps/HallOfFame.asm
• Blocks: maps/HallOfFame.blk
• Header (data/maps/maps.asm:356): map HallOfFame, TILESET_ICE_PATH, INDOOR, LANDMARK_INDIGO_PLATEAU, MUSIC_NEW_BARK_TOWN, TRUE, PALETTE_DAY, FISHGROUP_SHORE (yes: TILESET_ICE_PATH and the New Bark Town theme)
• Dimensions: constants/map_constants.asm:329 -> map_const HALL_OF_FAME, 5, 7 (10 x 14 tiles)
• Attributes: data/maps/attributes.asm:604, border $00

object_const_def: HALLOFFAME_LANCE. Scenes: SCENE_HALLOFFAME_ENTER = 0, SCENE_HALLOFFAME_NOOP = 1.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	4	13	LANCES_ROOM	3
2	5	13	LANCES_ROOM	4

Coord events - none (the induction is a scene script). BG events - none.

Object events

const	sprite	x	y	movement	type	script label	event flag
HALLOFFAME_LANCE	SPRITE_LANCE	4	12	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_SCRIPT	ObjectEvent	-1

Scripts of interest

• HallOfFameEnterScript (5a:5cff), deferred from scene_script HallOfFameEnterScene, SCENE_HALLOFFAME_ENTER. In order: follow HALLOFFAME_LANCE, PLAYER, applymovement HALLOFFAME_LANCE, HallOfFame_WalkUpWithLance (8 x step UP, 1 x step RIGHT, turn_head LEFT), stopfollow, Lance's speech, applymovement PLAYER, HallOfFame_SlowlyApproachMachine (one slow_step UP), setscene SCENE_HALLOFFAME_NOOP, then the state writes:

  setval HEALMACHINE_HALL_OF_FAME        ; constants/script_constants.asm:295
  special HealMachineAnim
  setevent EVENT_BEAT_ELITE_FOUR         ; constants/event_flags.asm:77
  setevent EVENT_TELEPORT_GUY            ; removes the Abra ride home
  setevent EVENT_RIVAL_SPROUT_TOWER
  clearevent EVENT_RED_IN_MT_SILVER      ; Red becomes available later
  setevent EVENT_OLIVINE_PORT_SPRITES_BEFORE_HALL_OF_FAME
  clearevent EVENT_OLIVINE_PORT_SPRITES_AFTER_HALL_OF_FAME
  setmapscene SPROUT_TOWER_3F, SCENE_SPROUTTOWER3F_NOOP
  special HealParty
  checkevent EVENT_GOT_SS_TICKET_FROM_ELM / iftrue .SkipPhoneCall
  specialphonecall SPECIALCALL_SSTICKET  ; constants/phone_constants.asm:49
  halloffame
  

  So the S.S. Ticket call from Elm is queued here, and the Kanto half of the game is switched on by this one script.

• halloffame ($9f) -> Script_halloffame (engine/overworld/scripting.asm:2207) -> HallOfFame (21:640a, engine/events/halloffame.asm:3): fade out music, wSpawnAfterChampion = SPAWN_LANCE, set STATUSFLAGS_HALL_OF_FAME_F, bump wHallOfFameCount (capped at HOF_MASTER_COUNT = 200), farcall SaveGameData, GetHallOfFameParty, AddHallOfFameEntry, AnimateHallOfFame, then jp Credits with the pre-set copy of wStatusFlags (which is why a first-time champion cannot hold B to skip the roll).

• After the credits, ReturnFromCredits (engine/overworld/scripting.asm:2216) ends the script and returns MAPSTATUS_DONE; the game goes to the title screen. On the next CONTINUE, engine/menus/intro_menu.asm:296 .SpawnAfterE4 sets wDefaultSpawnpoint = SPAWN_NEW_BARK and enters via MAPSETUP_WARP - the walkthrough's "the game isn't actually over".

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_BEAT_ELITE_FOUR	constants/event_flags.asm:77	set by HallOfFameEnterScript	the durable "League cleared" flag; the five EVENT_BEAT_ELITE_4_* flags are wiped by the lobby callback and must not be used for this
EVENT_TELEPORT_GUY	constants/event_flags.asm:1310	set here	Abra ride home disappears
EVENT_RED_IN_MT_SILVER	constants/event_flags.asm:1284	set on New Game (std_scripts.asm:526), cleared here	Red can now exist at Mt. Silver once the rest of his gate is met
EVENT_RIVAL_SPROUT_TOWER / SCENE_SPROUTTOWER3F_NOOP	constants/event_flags.asm:1126 / Sprout Tower 3F's scenes	set here	post-game Sprout Tower state
EVENT_OLIVINE_PORT_SPRITES_BEFORE_HALL_OF_FAME / _AFTER_HALL_OF_FAME	constants/event_flags.asm:1241-1242	flipped here	Olivine Port repopulates for the Fast Ship
EVENT_GOT_SS_TICKET_FROM_ELM	constants/event_flags.asm:45	read here	if unset, specialphonecall SPECIALCALL_SSTICKET queues Elm's call (engine/phone/scripts/elm.asm:69)
STATUSFLAGS_HALL_OF_FAME_F	constants/ram_constants.asm	set by HallOfFame::	unlocks the Kanto Pokégear map, gates credit skipping
SCENE_HALLOFFAME_ENTER / _NOOP	this map's def_scene_scripts (0 / 1)	setmapscene from the lobby callback; setscene mid-script	0 = play the induction

Items - none. Trainers - none. Wild encounters - none.

---

3. Blockers and gates

Gate	Enforced by (file:label)	Requirement	Unlock condition
Entry to Victory Road (and therefore to this whole section)	maps/VictoryRoadGate.asm:_VictoryRoadGateBadgeCheckScript - readvar VAR_BADGES / ifgreater NUM_JOHTO_BADGES - 1, .AllEightBadges	all 8 Johto badges	.AllEightBadges does setscene SCENE_VICTORYROADGATE_NOOP; otherwise you get applymovement PLAYER, VictoryRoadGateStepDownMovement and are pushed back. This gate belongs to the previous section, listed here only because it is the precondition for everything below
Fly to Indigo Plateau	maps/Route23.asm:Route23FlypointCallback	one MAPCALLBACK_NEWMAP on Route 23	setflag ENGINE_FLYPOINT_INDIGO_PLATEAU
No retreat once inside an Elite Four room	maps/WillsRoom.asm:WillsRoomDoorLocksBehindYouScript (and the Koga/Bruno/Karen/Lance twins) - changeblock 4, 14, $2a (Lance: changeblock 4, 22, $34) plus EVENT_*_ROOM_ENTRANCE_CLOSED re-applied by each map's MAPCALLBACK_TILES	none - it is unconditional on entry	never, within a run. The lobby's MAPCALLBACK_NEWMAP clears the flags, but you can only reach the lobby by finishing or blacking out
Each room's north door	WillScript_Battle / KogaScript_Battle / BrunoScript_Battle / KarenScript_Battle - changeblock 4, 2, $16 + setevent EVENT_*_ROOM_EXIT_OPEN, replayed by the map's MAPCALLBACK_TILES	beat that member	door block becomes $16 (open) and warps at (4, 2)/(5, 2) become reachable
Lance's north door	maps/LancesRoom.asm:LancesRoomLanceScript - changeblock 4, 0, $0b	beat Lance	opened, but the script warps you through immediately anyway
Approaching Lance at all	def_coord_events at (4, 5) / (5, 5) gated on SCENE_LANCESROOM_APPROACH_LANCE	that scene is only set at the end of LancesRoomDoorLocksBehindYouScript	walking in through warp 1/2 always sets it; a bot teleported straight to y < 5 would skip the fight
Lobby rival ambush	maps/IndigoPlateauPokecenter1F.asm:PlateauRivalBattle1/2	EVENT_BEAT_RIVAL_IN_MT_MOON set, ENGINE_INDIGO_PLATEAU_RIVAL_FIGHT clear, VAR_WEEKDAY in {MONDAY, WEDNESDAY}	not a progress gate - a hazard. Avoid tiles (16, 4) / (17, 4) if the run cannot afford a level-45-50 six-mon fight
No HM field move is required anywhere in this section	grep: no Route23/Elite Four map references any engine/overworld/ field-move script; the walkthrough's "you do NOT need to have every HM" is correct	-	-

---

4. Bot checklist

Coordinates are the raw asm map coordinates (tile grid, origin top-left, before the +4 border offset the object/warp readers apply).

#	Map	Target	Intent	Precondition	Postcondition
1	VICTORY_ROAD	warp at (13, 5)	walk onto warp	8 Johto badges (already spent at VictoryRoadGate)	on ROUTE_23 at warp 3 (9, 13)
2	ROUTE_23	any tile (map load)	step	-	ENGINE_FLYPOINT_INDIGO_PLATEAU set
3	ROUTE_23	(9, 5) or (10, 5)	walk onto warp	-	in INDIGO_PLATEAU_POKECENTER_1F at (5, 13)/(6, 13); the MAPCALLBACK_NEWMAP resets all Elite Four scenes/flags
4	INDIGO_PLATEAU_POKECENTER_1F	INDIGOPLATEAUPOKECENTER1F_NURSE at (3, 7)	talk (A, facing up from (3, 8))	-	party healed (jumpstd PokecenterNurseScript)
5	INDIGO_PLATEAU_POKECENTER_1F	INDIGOPLATEAUPOKECENTER1F_CLERK at (11, 7)	talk, buy	money	stock Hyper Potion / Full Heal / Revive / Full Restore from MartIndigoPlateau
6	INDIGO_PLATEAU_POKECENTER_1F	avoid (16, 4) and (17, 4)	pathing constraint	only matters if EVENT_BEAT_RIVAL_IN_MT_MOON is set and today is Mon/Wed	skipping avoids RIVAL2_2_*
7	INDIGO_PLATEAU_POKECENTER_1F	warp at (14, 3)	walk onto warp	-	in WILLS_ROOM at (5, 17); scene 0 fires WillsRoomDoorLocksBehindYouScript
8	WILLS_ROOM	(automatic)	wait out applymovement	-	player at (5, 13), EVENT_WILLS_ROOM_ENTRANCE_CLOSED set, scene = 1
9	WILLS_ROOM	WILLSROOM_WILL at (5, 7)	walk to (5, 8), face up, A	-	win -> EVENT_BEAT_ELITE_4_WILL, EVENT_WILLS_ROOM_EXIT_OPEN
10	WILLS_ROOM	(4, 2) or (5, 2)	walk onto warp	EVENT_WILLS_ROOM_EXIT_OPEN	in KOGAS_ROOM at (4, 17)/(5, 17)
11	KOGAS_ROOM	KOGASROOM_KOGA at (5, 7)	walk to (5, 8), face up, A	door-lock cutscene done (player at `(4	5, 13)`)
12	KOGAS_ROOM	(4, 2) / (5, 2)	walk onto warp	exit open	in BRUNOS_ROOM at (4, 17)/(5, 17)
13	BRUNOS_ROOM	BRUNOSROOM_BRUNO at (5, 7)	talk	cutscene done	EVENT_BEAT_ELITE_4_BRUNO, EVENT_BRUNOS_ROOM_EXIT_OPEN
14	BRUNOS_ROOM	(4, 2) / (5, 2)	walk onto warp	exit open	in KARENS_ROOM at (4, 17)/(5, 17)
15	KARENS_ROOM	KARENSROOM_KAREN at (5, 7)	talk	cutscene done	EVENT_BEAT_ELITE_4_KAREN, EVENT_KARENS_ROOM_EXIT_OPEN
16	KARENS_ROOM	(4, 2) / (5, 2)	walk onto warp	exit open	in LANCES_ROOM at (4, 23)/(5, 23)
17	LANCES_ROOM	(automatic)	wait out applymovement	-	player at `(4
18	LANCES_ROOM	walk to (4, 5) (or (5, 5))	walk onto coord event	scene = 1	Script_ApproachLanceFromLeft/Right -> Champion battle vs CHAMPION/LANCE
19	LANCES_ROOM	(automatic)	hold A through the Mary / Oak cutscene	won	EVENT_BEAT_CHAMPION_LANCE, then warp HALL_OF_FAME, 4, 13
20	HALL_OF_FAME	(automatic)	hold A through Lance's speech	scene = SCENE_HALLOFFAME_ENTER	EVENT_BEAT_ELITE_FOUR, EVENT_TELEPORT_GUY, S.S. Ticket call queued if needed, halloffame runs
21	(screens)	Hall of Fame roster -> credits -> "The End"	wait; B skips only if STATUSFLAGS_HALL_OF_FAME_F was already set before this induction	-	back to title; save has been written by SaveGameData inside the ceremony
22	(title)	CONTINUE	select	wSpawnAfterChampion == SPAWN_LANCE	game resumes at SPAWN_NEW_BARK, not at Indigo Plateau

Bot notes:

• Do not re-enter INDIGO_PLATEAU_POKECENTER_1F mid-run to heal. You cannot (the doors are sealed), and if some other path got you there, its MAPCALLBACK_NEWMAP wipes EVENT_BEAT_ELITE_4_* and re-arms all five door-lock scenes, restarting the gauntlet from Will.
• Every fight uses winlosstext <win>, 0 - no loss branch, no BATTLETYPE_CANLOSE - so a loss is a full blackout to the last Pokémon Center.
• After each startbattle the scripts run reloadmapafterbattle, which re-runs the map's MAPCALLBACK_TILES and therefore restores both the sealed south door and (once its flag is set) the opened north door.

---

5. Port coverage

Beat	Port file	Status
Map/warp/coord/object tables for all 8 maps	extracted generically by src/import/RomExtractorGen2.lua into the Gold cache and read by src/world/gen2/World.lua + src/world/gen2/Map.lua	implemented (data-driven; nothing map-specific is hand-written)
MAPCALLBACK_NEWMAP / MAPCALLBACK_TILES dispatch (the lobby reset, the door callbacks)	src/world/gen2/World.lua, asserted end-to-end by tests/drivers/gold_map_callbacks.lua	implemented
changeblock / refreshmap door swaps	src/world/gen2/World.lua:1454 (World:changeBlock), src/script/gen2/Opcodes.lua	implemented
reanchormap	src/script/gen2/Vm.lua:166 - grouped with opentext/closetext as a no-op	partial (the camera re-anchor the cart does after the wall drops is not reproduced; cosmetic, but the seal-in frame may differ)
earthquake 80 shake	src/script/gen2/Vm.lua:1044 -> earthquakeFn, World:earthquake (src/world/gen2/World.lua:1537)	implemented
Scene scripts / sdefer (all five door locks, the Hall of Fame induction)	src/script/gen2/Vm.lua:92 - sdefer is executed immediately rather than deferred until the map settles	partial (ordering deviation, called out in the source comment)
setmapscene / setscene	src/script/gen2/Opcodes.lua, World:mapSceneOf (src/world/gen2/World.lua:1179)	implemented
loadtrainer / startbattle / winlosstext / reloadmapafterbattle	src/script/gen2/Vm.lua, src/battle/gen2/Battle.lua, src/world/gen2/Trainers.lua	implemented
Trainer party data (WillGroup … ChampionGroup), class DVs, class items	extracted by src/import/RomExtractorGen2.lua (TrainerGroups, ~line 3871)	implemented (data-driven)
AI item use (Koga/Lance Full Restore, Will/Bruno Max Potion, Karen Full Heal)	src/battle/gen2/Ai.lua:1369-1375, src/battle/gen2/Battle.lua:1747	implemented
Prize money base x last level	src/battle/gen2/Prize.lua (Prize.rewardLevel), used at src/battle/gen2/Battle.lua:1438	implemented
pokemart MARTTYPE_STANDARD, MART_INDIGO_PLATEAU	src/script/gen2/Vm.lua:597, src/ui/gen2/MartMenu.lua, mart tables extracted at src/import/RomExtractorGen2.lua:2582	implemented
jumpstd PokecenterNurseScript (lobby heal)	src/script/gen2/Vm.lua jumpstd + std-script table	implemented
TeleportGuyScript warp to New Bark Town, AbraScript cry ABRA	generic warp/yesorno/cry opcodes	implemented (data-driven)
halloffame opcode -> induction bookkeeping	src/script/gen2/Opcodes.lua:171, src/script/gen2/Vm.lua:1382, src/world/gen2/World.lua:2374 (World:hallOfFame), src/core/gen2/HallOfFame.lua (induct, bumpCount, buildParty)	implemented
Hall of Fame roster screen + credits, first-time-champion skip lockout	src/ui/gen2/HallOfFame.lua, src/ui/gen2/Credits.lua; eyeball driver tests/drivers/gold_halloffame_shots.lua	implemented
wSpawnAfterChampion -> post-credits respawn at SPAWN_NEW_BARK	src/core/gen2/HallOfFame.lua:51 (POST_CREDITS_SPAWN) and :254 (consumePostGameSpawn)	partial - the logic exists and is unit-tested (tests/gen2_halloffame_test.lua:164), but grepping src/ finds no caller: nothing on the CONTINUE path consumes it, so a port save resumes where it stood rather than at New Bark Town
specialphonecall SPECIALCALL_SSTICKET from the induction	src/script/gen2/Vm.lua (specialphonecall), src/core/gen2/Phone.lua:394 (SPECIALCALL_SSTICKET, id 5)	implemented
ENGINE_FLYPOINT_INDIGO_PLATEAU -> Fly menu + Kanto map unlock	src/world/gen2/FieldMoves.lua:368 (SPAWN_INDIGO, flag 63), :414 (Kanto half gate)	implemented
ENGINE_INDIGO_PLATEAU_RIVAL_FIGHT daily reset	src/core/gen2/Apricorns.lua:88 (DAILY_ENGINE_FLAGS, id 92)	implemented
A Gold-side driver that actually walks Route 23 -> Hall of Fame	none found (tests/drivers/gold_*.lua has boot/walk/battle/HOF-screen drivers but no League run; tests/drivers/bot_route.lua and tests/parity_lance.lua are the Gen 1 Kanto Elite Four)	missing

---

6. Unresolved / verify by hand

1. "Route 32 is very short, and you'll immediately be at the Pokémon League building." The map between Victory Road and the Plateau is MAP_ROUTE_23 (constants/map_constants.asm:322), not Route 32 (which is south of Violet City). Walkthrough typo.
2. The walkthrough is describing HeartGold/SoulSilver parties, not Gold. Four concrete divergences, all verified against data/trainers/parties.asm:
   • Will's send-out order is Xatu, Jynx, Exeggutor, Slowbro, Xatu; the FAQ lists Slowbro third and Exeggutor fifth.
   • Koga's order is Ariados, Venomoth, Forretress, Muk, Crobat; the FAQ swaps 2 and 3.
   • Bruno's order is Hitmontop, Hitmonlee, Hitmonchan, Onix, Machamp; the FAQ swaps 2 and 3.
   • Karen and Lance match in order and level.
3. Prize money. The FAQ's 4200 / 4400 / 4600 / 4700 / 5000 G are 100 x the last mon's level (HGSS). GS pays base reward x level (ComputeTrainerReward, engine/battle/read_trainer_party.asm:300) with a base reward of 25 for every one of these classes (data/trainers/attributes.asm), i.e. 1050 / 1100 / 1150 / 1175 / 1250 G. The EXP figures quoted per Pokémon were not checked against data/pokemon/base_stats/ and should be treated as HGSS numbers too.
4. Held items and AI items. "Koga has three Full Restores", "Karen has one Full Restore", "Lance has three Full Restores", "Houndoom holding a Sitrus Berry", "One of the Dragonites may be holding a Sitrus Berry". In GS these parties are TRAINERTYPE_MOVES, which carries no held item field at all, and the AI's item pool is the two-byte class row: Will MAX_POTION, NO_ITEM; Bruno MAX_POTION, NO_ITEM; Karen FULL_HEAL, MAX_POTION (no Full Restore); Koga FULL_HEAL, FULL_RESTORE; Champion FULL_HEAL, FULL_RESTORE. Sitrus Berry does not exist in Gen 2.
5. Move names. "Dragon Rush" (Lance's Dragonites) is a Gen 4 move; the GS Dragonites run Thunder Wave / Twister / Thunder or Blizzard / Hyper Beam, and the level-50 one runs Fire Blast / Safeguard / Outrage / Hyper Beam. Lugia's "Aero Blast" and Donphan/Sudowoodo suggestions in the sample lineup are fine as species, but none of that is asm-checkable.
6. "Routes 46 and 47 aren't bad, either." ROUTE_47 does not exist in pokegold (constants/map_constants.asm has ROUTE_45 and ROUTE_46 and then moves on). Route 47/48 are HGSS additions.
7. "You can go back to the Move Deleter in Blackthorn City." There is a maps/MoveDeletersHouse.asm reached from maps/BlackthornCity.asm; I did not read its script, so the claim is plausible but unverified here.
8. "If you trade a Red Scale to Mr. Pokémon, he will give you EXP Share." maps/MrPokemonsHouse.asm does checkitem RED_SCALE (line 53), verbosegiveitem EXP_SHARE (line 72), takeitem RED_SCALE (line 74), so the claim holds; the surrounding flag guards were not read (out of scope).
9. The "Abra" sprite. maps/IndigoPlateauPokecenter1F.asm:324 declares SPRITE_JYNX for the object whose script is AbraScript and whose cry is cry ABRA. There is no SPRITE_ABRA in constants/sprite_constants.asm. Whether this renders as a Jynx on hardware, or whether some variablesprite elsewhere rewrites it, was not chased down - no variablesprite targeting SPRITE_JYNX appears in engine/events/std_scripts.asm's init block.
10. EVENT_LANCES_ROOM_EXIT_OPEN is never set. LancesRoomDoorsCallback reads it, the lobby callback clears it, but no script in the tree sets it (grepped maps/). The champion's north door is opened by a bare changeblock 4, 0, $0b, which does not survive a map reload. Harmless in practice because the script warps you out immediately, but a bot that somehow re-enters Lance's room post-battle will find the door shut again.
11. setevent EVENT_LANCES_ROOM_ENTRANCE_CLOSED appears twice: once in LancesRoomDoorLocksBehindYouScript (correct) and again immediately after the champion's after-battle text in LancesRoomLanceScript. The second one looks like it was meant to be the EXIT_OPEN set in item 10; recorded as observed, not corrected.
12. The lobby's redundant setscene. PlateauRivalPostBattle sets the scene to SCENE_INDIGOPLATEAUPOKECENTER1F_RIVAL_BATTLE, which is 0, which is the map's only scene and its default. Whether this was intended to disarm the coord events (it does not) is a judgement call; the effective guards are the engine flag and the weekday check.
13. "Fully heal your Pokémon and save after every trainer battle." There is no heal source inside the sealed rooms - no nurse object, no special HealParty until HallOfFameEnterScript. The advice is about bag items, and the asm agrees that nothing else is available.