gen1recomp/docs/gold-walkthrough/asm-walk/section-02-sprout-tower-and-violet-city-gym.md

Section 02 - Sprout Tower and Violet City Gym

Source: ../section-02-sprout-tower-and-violet-city-gym.txt Maps covered: MAP_SPROUT_TOWER_1F, MAP_SPROUT_TOWER_2F, MAP_SPROUT_TOWER_3F, MAP_VIOLET_CITY, MAP_VIOLET_POKECENTER_1F, MAP_VIOLET_GYM Badges / key milestones in this section: HM05 Flash (EVENT_GOT_HM05_FLASH), the Sprout Tower rival cutscene (EVENT_RIVAL_SPROUT_TOWER), ZEPHYRBADGE (ENGINE_ZEPHYRBADGE, EVENT_BEAT_FALKNER), TM31 Mud-Slap (EVENT_GOT_TM31_MUD_SLAP).

All map constants below use the MAP_* spelling that both constants/map_constants.asm and this port's map ids use; the port's World:setMap takes exactly the bare constant name ("SPROUT_TOWER_1F"), which is what tools/rom_manifest_gold.json -> constants.mapGroups stores.

---

1. Route order

#	Map constant	asm file	Enter via	Leaves via	Why (walkthrough beat)
1	MAP_SPROUT_TOWER_1F	maps/SproutTower1F.asm	MAP_VIOLET_CITY warp 7 at (23,5) -> 1F warp 1 (9,15)	1F warp 3 (6,4) -> 2F warp 1	"Head up the stairs to Floor 2."
2	MAP_SPROUT_TOWER_2F	maps/SproutTower2F.asm	2F warp 1 (6,4)	2F warp 3 (17,3) -> 1F warp 5	Sage Nico at (14,4), then "down the stairs"
3	MAP_SPROUT_TOWER_1F	maps/SproutTower1F.asm	1F warp 5 (17,3)	1F warp 4 (2,6) -> 2F warp 2	Parlyz Heal ball at (16,7), then Sage Chow at (2,1)
4	MAP_SPROUT_TOWER_2F	maps/SproutTower2F.asm	2F warp 2 (2,6)	2F warp 4 (10,14) -> 3F warp 1	X Defend ball at (3,1), Sage Edmond at (3,15)
5	MAP_SPROUT_TOWER_3F	maps/SproutTower3F.asm	3F warp 1 (10,14)	3F warp 1 (10,14) -> 2F warp 4	Potion, Jin/Neal/Troy, rival cutscene, Sage Li, HM05, Escape Rope
6	MAP_SPROUT_TOWER_2F -> MAP_SPROUT_TOWER_1F	as above	2F warp 4 / 1F warps 3-5	1F warp 1 (9,15) or warp 2 (10,15) -> MAP_VIOLET_CITY warp 7	"Get out of the tower" (Escape Rope also legal: the tower is DUNGEON)
7	MAP_VIOLET_CITY	maps/VioletCity.asm	city warp 7 (23,5)	city warp 5 (31,25)	"go back to the Pokemon Center of Violet City"
8	MAP_VIOLET_POKECENTER_1F	maps/VioletPokecenter1F.asm	PC warp 1 (3,7)	PC warp 1/2 (3,7)/(4,7)	Heal at the nurse before the gym
9	MAP_VIOLET_CITY	maps/VioletCity.asm	city warp 5 (31,25)	city warp 2 (18,17)	"head northwest in the city to the Violet City Gym"
10	MAP_VIOLET_GYM	maps/VioletGym.asm	gym warp 1 (4,15)	gym warp 1/2 (4,15)/(5,15) -> MAP_VIOLET_CITY warp 2	Abe, Rod, Falkner, ZEPHYRBADGE + TM31
11	MAP_VIOLET_CITY	maps/VioletCity.asm	city warp 2 (18,17)	(section ends)	Section closes with the badge in hand

Spills into the next section: beating Falkner runs specialphonecall SPECIALCALL_ASSISTANT (maps/VioletGym.asm), whose Elm phone script (engine/phone/scripts/elm.asm, .assistant) clears EVENT_ELMS_AIDE_IN_VIOLET_POKEMON_CENTER so the aide appears in MAP_VIOLET_POKECENTER_1F with the Togepi egg, and sets SCENE_ROUTE32_OFFER_SLOWPOKETAIL when the egg is taken. That whole beat belongs to the next section; it is listed here only because the trigger lives in this section's gym script.

2. Maps

MAP_SPROUT_TOWER_1F

• Script: maps/SproutTower1F.asm
• Blocks: maps/SproutTower1F.blk (data/maps/blocks.asm -> SproutTower1F_Blocks)
• Header: data/maps/maps.asm:79 -> TILESET_TOWER, DUNGEON, LANDMARK_SPROUT_TOWER, MUSIC_SPROUT_TOWER, phone FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions / attributes: constants/map_constants.asm:66 (map_const SPROUT_TOWER_1F, 10, 8) = 20x16 cells; data/maps/attributes.asm:398 (map_attributes SproutTower1F, SPROUT_TOWER_1F, $00)
• Connections: none (indoor/dungeon)

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	9	15	VIOLET_CITY	7
2	10	15	VIOLET_CITY	7
3	6	4	SPROUT_TOWER_2F	1
4	2	6	SPROUT_TOWER_2F	2
5	17	3	SPROUT_TOWER_2F	3

Coord events (def_coord_events)

None (def_coord_events is empty).

BG events (def_bg_events)

x	y	type	script/item
7	15	BGEVENT_READ	SproutTower1FStatue
12	15	BGEVENT_READ	SproutTower1FStatue

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
SPROUTTOWER1F_SAGE1	SPRITE_SAGE	7	4	SPRITEMOVEDATA_STANDING_DOWN, radius 0/0, pal PAL_NPC_BLUE	OBJECTTYPE_SCRIPT, sight 0	SproutTower1FSage1Script	-1
SPROUTTOWER1F_SAGE2	SPRITE_SAGE	6	7	SPRITEMOVEDATA_WANDER, radius 1/1, pal PAL_NPC_BLUE	OBJECTTYPE_SCRIPT, sight 0	SproutTower1FSage2Script	-1
SPROUTTOWER1F_GRANNY	SPRITE_GRANNY	11	12	SPRITEMOVEDATA_STANDING_LEFT, radius 0/0	OBJECTTYPE_SCRIPT, sight 0	SproutTower1FGrannyScript	-1
SPROUTTOWER1F_TEACHER	SPRITE_TEACHER	9	9	SPRITEMOVEDATA_STANDING_UP, radius 0/0	OBJECTTYPE_SCRIPT, sight 0	SproutTower1FTeacherScript	-1
SPROUTTOWER1F_SAGE3	SPRITE_SAGE	2	1	SPRITEMOVEDATA_STANDING_RIGHT, radius 0/0, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 1	TrainerSageChow	-1
SPROUTTOWER1F_POKE_BALL	SPRITE_POKE_BALL	16	7	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL, sight 0	SproutTower1FParlyzHeal	EVENT_SPROUT_TOWER_1F_PARLYZ_HEAL

Scripts of interest

• TrainerSageChow (42:400e): trainer SAGE, CHOW, EVENT_BEAT_SAGE_CHOW, SageChowSeenText, SageChowBeatenText, 0, .Script. Loss text is 0. The after-battle arm .Script (42:401a) is endifjustbattled then a single writetext SageChowAfterBattleText.
• SproutTower1FParlyzHeal (42:4022): a bare itemball PARLYZ_HEAL - two raw bytes, not bytecode. Pickup is engine-side (FindItemInBallScript), gated on EVENT_SPROUT_TOWER_1F_PARLYZ_HEAL.
• Sage1/Sage2/Granny/Teacher are all jumptextfaceplayer one-liners; nothing to gate on.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_BEAT_SAGE_CHOW (1041)	constants/event_flags.asm:518	TrainerSageChow header word	Set once beaten; suppresses re-battle and the eyesight trigger
EVENT_SPROUT_TOWER_1F_PARLYZ_HEAL (1607)	constants/event_flags.asm:1000	object-event flag on SPROUTTOWER1F_POKE_BALL	Set = ball is gone (CheckObjectFlag, engine/overworld/map_objects_2.asm)

Items

item	how obtained	source (label / bg_event / hidden)	one-time flag
PARLYZ_HEAL	Poke Ball object at (16,7)	SproutTower1FParlyzHeal (itemball PARLYZ_HEAL)	EVENT_SPROUT_TOWER_1F_PARLYZ_HEAL

Trainers

const	class	id	party (data/trainers/parties.asm label)	script label	rematch/phone
SAGE, CHOW	SAGE (38)	CHOW (1)	SageGroup "CHOW" (0e:7324 group base): L3 Bellsprout x3, TRAINERTYPE_NORMAL	TrainerSageChow	none

Prize money: data/trainers/attributes.asm "Sage" base reward 8; ComputeTrainerReward x last party level (3) x4 in WinTrainerBattle = 96.

Wild encounters

None. data/wild/johto_grass.asm has no def_grass_wildmons SPROUT_TOWER_1F entry; only 2F and 3F have tables. 1F has no grass/water/fish/headbutt data.

---

MAP_SPROUT_TOWER_2F

• Script: maps/SproutTower2F.asm
• Blocks: maps/SproutTower2F.blk
• Header: data/maps/maps.asm:80 -> TILESET_TOWER, DUNGEON, LANDMARK_SPROUT_TOWER, MUSIC_SPROUT_TOWER, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions / attributes: constants/map_constants.asm:67 (map_const SPROUT_TOWER_2F, 10, 8) = 20x16 cells; data/maps/attributes.asm:399
• Connections: none

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	6	4	SPROUT_TOWER_1F	3
2	2	6	SPROUT_TOWER_1F	4
3	17	3	SPROUT_TOWER_1F	5
4	10	14	SPROUT_TOWER_3F	1

Coord events (def_coord_events)

None.

BG events (def_bg_events)

x	y	type	script/item
12	15	BGEVENT_READ	SproutTower2FStatue

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
SPROUTTOWER2F_SAGE1	SPRITE_SAGE	14	4	SPRITEMOVEDATA_SPINRANDOM_FAST, radius 0/0, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 2	TrainerSageNico	-1
SPROUTTOWER2F_SAGE2	SPRITE_SAGE	3	15	SPRITEMOVEDATA_STANDING_UP, radius 0/0, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 4	TrainerSageEdmond	-1
SPROUTTOWER2F_POKE_BALL	SPRITE_POKE_BALL	3	1	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL, sight 0	SproutTower2FXDefend	EVENT_SPROUT_TOWER_2F_X_DEFEND

Scripts of interest

• TrainerSageNico (42:4280) and TrainerSageEdmond (42:4294): identical shape to Chow - trainer header, .Script = endifjustbattled + one writetext.
• SproutTower2FXDefend (42:42ab): itemball X_DEFEND. Note the item is X Defend, not X Accuracy.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_BEAT_SAGE_NICO (1042)	constants/event_flags.asm:519	TrainerSageNico	Beaten once
EVENT_BEAT_SAGE_EDMOND (1047)	constants/event_flags.asm:524	TrainerSageEdmond	Beaten once
EVENT_SPROUT_TOWER_2F_X_DEFEND (1608)	constants/event_flags.asm:1001	object-event flag	Ball taken

Items

item	how obtained	source (label / bg_event / hidden)	one-time flag
X_DEFEND	Poke Ball object at (3,1)	SproutTower2FXDefend	EVENT_SPROUT_TOWER_2F_X_DEFEND

Trainers

const	class	id	party	script label	rematch/phone
SAGE, NICO	SAGE	NICO (2)	SageGroup "NICO": L3 Bellsprout x3	TrainerSageNico	none
SAGE, EDMOND	SAGE	EDMOND (7)	SageGroup "EDMOND": L3 Bellsprout x3	TrainerSageEdmond	none

Both pay 8 x 3 x 4 = 96.

Wild encounters

data/wild/johto_grass.asm:5 def_grass_wildmons SPROUT_TOWER_2F, rates 2 percent / 2 percent / 2 percent (morn/day/nite):

• morn: L3 Rattata, L4 Rattata, L5 Rattata, L3 Rattata, L6 Rattata, L5 Rattata, L5 Rattata
• day: identical to morn
• nite: L3 Gastly, L4 Gastly, L5 Gastly, L3 Rattata, L6 Gastly, L5 Rattata, L5 Rattata

No water/fish/headbutt entry for this map.

---

MAP_SPROUT_TOWER_3F

• Script: maps/SproutTower3F.asm
• Blocks: maps/SproutTower3F.blk
• Header: data/maps/maps.asm:81 -> TILESET_TOWER, DUNGEON, LANDMARK_SPROUT_TOWER, MUSIC_SPROUT_TOWER, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions / attributes: constants/map_constants.asm:68 (map_const SPROUT_TOWER_3F, 10, 8) = 20x16 cells; data/maps/attributes.asm:400
• Connections: none
• Scene variable: data/maps/scenes.asm:47 -> wSproutTower3FSceneID

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	10	14	SPROUT_TOWER_2F	4

Coord events (def_coord_events)

scene	x	y	script label	effect
SCENE_SPROUTTOWER3F_RIVAL_ENCOUNTER (0)	11	9	SproutTower3FRivalScene	The elder/rival cutscene; ends with setscene SCENE_SPROUTTOWER3F_NOOP

The two SCENE_SPROUTTOWER3F_* constants are generated inline by the scene_script macro (macros/scripts/maps.asm, scene_const) in maps/SproutTower3F.asm:12-13: index 0 = SCENE_SPROUTTOWER3F_RIVAL_ENCOUNTER, index 1 = SCENE_SPROUTTOWER3F_NOOP. Both scene scripts are bare end stubs; the scene id exists only to arm/disarm the coord event. The scene starts at 0 on a new game, so the trip-wire is live on first entry.

BG events (def_bg_events)

x	y	type	script/item
8	1	BGEVENT_READ	SproutTower3FStatue
11	1	BGEVENT_READ	SproutTower3FStatue
9	0	BGEVENT_READ	SproutTower3FPainting
10	0	BGEVENT_READ	SproutTower3FPainting
5	15	BGEVENT_READ	SproutTower3FStatue
14	15	BGEVENT_READ	SproutTower3FStatue

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
SPROUTTOWER3F_SAGE1	SPRITE_SAGE	8	13	SPRITEMOVEDATA_STANDING_RIGHT, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 3	TrainerSageJin	-1
SPROUTTOWER3F_SAGE2	SPRITE_SAGE	8	8	SPRITEMOVEDATA_STANDING_DOWN, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 2	TrainerSageTroy	-1
SPROUTTOWER3F_SAGE3	SPRITE_SAGE	10	2	SPRITEMOVEDATA_STANDING_DOWN, pal PAL_NPC_BLUE	OBJECTTYPE_SCRIPT, sight 0	SageLiScript	-1
SPROUTTOWER3F_SAGE4	SPRITE_SAGE	11	11	SPRITEMOVEDATA_STANDING_LEFT, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 3	TrainerSageNeal	-1
SPROUTTOWER3F_POKE_BALL1	SPRITE_POKE_BALL	6	14	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	SproutTower3FPotion	EVENT_SPROUT_TOWER_3F_POTION
SPROUTTOWER3F_POKE_BALL2	SPRITE_POKE_BALL	14	1	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	SproutTower3FEscapeRope	EVENT_SPROUT_TOWER_3F_ESCAPE_ROPE
SPROUTTOWER3F_RIVAL	SPRITE_RIVAL	10	4	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_SCRIPT, sight 0	ObjectEvent (the shared ROM0 stub)	EVENT_RIVAL_SPROUT_TOWER

Object-flag polarity, confirmed in engine/overworld/map_objects_2.asm (CheckObjectFlag): the object is masked when its event flag is SET. EVENT_RIVAL_SPROUT_TOWER therefore starts clear (rival visible) and the cutscene's disappear SPROUTTOWER3F_RIVAL sets it (Script_disappear -> ApplyEventActionAppearDisappear, b = 1, engine/overworld/scripting.asm:887).

Scripts of interest

• SproutTower3FRivalScene (42:444b), fired by the coord event at (11,9): turnobject PLAYER, UP; showemote EMOTE_SHOCK, PLAYER, 15; special FadeOutMusic; two rounds of playsound SFX_TACKLE + playsound SFX_ELEVATOR + earthquake 79 + pause 15; applymovement PLAYER, SproutTower3FPlayerApproachesRivalMovement (four step UP, so the player ends at (11,5)); applymovement SPROUTTOWER3F_RIVAL, SproutTower3FRivalApproachesElderMovement (one step UP, rival (10,4) -> (10,3)); writetext SproutTowerElderLecturesRivalText; showemote EMOTE_SHOCK, SPROUTTOWER3F_RIVAL, 15; turnobject SPROUTTOWER3F_RIVAL, DOWN; applymovement SPROUTTOWER3F_RIVAL, SproutTower3FRivalLeavesElderMovement (step RIGHT, step DOWN); playmusic MUSIC_RIVAL_ENCOUNTER; two more writetexts; playsound SFX_WARP_TO; special FadeOutToBlack; special ReloadSpritesNoPalettes; disappear SPROUTTOWER3F_RIVAL; waitsfx; special FadeInFromBlack; setscene SCENE_SPROUTTOWER3F_NOOP; special RestartMapMusic; end. No battle. This is a pure cutscene - the rival is not fought here.
• SageLiScript (42:44aa): faceplayer, opentext, checkevent EVENT_GOT_HM05_FLASH / iftrue .GotFlash. First-time arm: writetext SageLiSeenText, winlosstext SageLiBeatenText, 0, loadtrainer SAGE, LI, startbattle, reloadmapafterbattle, writetext SageLiTakeThisFlashText, promptbutton, verbosegiveitem HM_FLASH, setevent EVENT_GOT_HM05_FLASH, setevent EVENT_BEAT_SAGE_LI, writetext SageLiFlashExplanationText, end. .GotFlash (42:44d5) is a single writetext SageLiAfterBattleText. Note the flag order: the HM is given before both events are set, and verbosegiveitem's failure return is not checked here (unlike Falkner's TM), so a full bag at this point loses the HM.
• TrainerSageJin (42:44db), TrainerSageTroy (42:44ef), TrainerSageNeal (42:4503): standard trainer headers + endifjustbattled after-battle text.
• SproutTower3FPotion (42:451d) = itemball POTION; SproutTower3FEscapeRope (42:451f) = itemball ESCAPE_ROPE.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_BEAT_SAGE_JIN (1043)	constants/event_flags.asm:520	TrainerSageJin	Beaten
EVENT_BEAT_SAGE_TROY (1044)	constants/event_flags.asm:521	TrainerSageTroy	Beaten
EVENT_BEAT_SAGE_NEAL (1048)	constants/event_flags.asm:525	TrainerSageNeal	Beaten
EVENT_BEAT_SAGE_LI (1049)	constants/event_flags.asm:526	set by SageLiScript after the battle	Set only on the HM-giving pass; Li is an OBJECTTYPE_SCRIPT, not a trainer object, so this flag does not gate re-battle - EVENT_GOT_HM05_FLASH does
EVENT_GOT_HM05_FLASH (20)	constants/event_flags.asm:27	read+written by SageLiScript	The real "tower cleared" flag
EVENT_RIVAL_SPROUT_TOWER (1732)	constants/event_flags.asm:1126	object-event flag; set by disappear in the cutscene; also setevent in maps/HallOfFame.asm:35	Clear = rival still standing at (10,4)
EVENT_SPROUT_TOWER_3F_POTION (1609)	constants/event_flags.asm:1002	object-event flag	Ball taken
EVENT_SPROUT_TOWER_3F_ESCAPE_ROPE (1610)	constants/event_flags.asm:1003	object-event flag	Ball taken
SCENE_SPROUTTOWER3F_RIVAL_ENCOUNTER = 0	maps/SproutTower3F.asm:12 (macro-generated)	wSproutTower3FSceneID (data/maps/scenes.asm:47)	Coord event live
SCENE_SPROUTTOWER3F_NOOP = 1	maps/SproutTower3F.asm:13	setscene at the end of the cutscene; setmapscene in maps/HallOfFame.asm:39	Coord event dead

Items

item	how obtained	source	one-time flag
POTION	Poke Ball at (6,14)	SproutTower3FPotion	EVENT_SPROUT_TOWER_3F_POTION
ESCAPE_ROPE	Poke Ball at (14,1)	SproutTower3FEscapeRope	EVENT_SPROUT_TOWER_3F_ESCAPE_ROPE
HM_FLASH (HM05)	verbosegiveitem from Sage Li after his battle	SageLiScript	EVENT_GOT_HM05_FLASH

HM_FLASH is the fifth add_hm in constants/item_constants.asm (CUT, FLY, SURF, STRENGTH, FLASH, WHIRLPOOL, WATERFALL), i.e. HM05.

Trainers

const	class	id	party	script label	rematch/phone
SAGE, JIN	SAGE	JIN (3)	SageGroup "JIN": L6 Bellsprout	TrainerSageJin	none
SAGE, TROY	SAGE	TROY (4)	SageGroup "TROY": L7 Bellsprout, L7 Hoothoot	TrainerSageTroy	none
SAGE, NEAL	SAGE	NEAL (8)	SageGroup "NEAL": L6 Bellsprout	TrainerSageNeal	none
SAGE, LI	SAGE	LI (9)	SageGroup "LI": L7 Bellsprout, L7 Bellsprout, L10 Hoothoot	SageLiScript (loadtrainer, not an OBJECTTYPE_TRAINER)	none

Prize money (base 8 x last party level x 4): Jin 192, Neal 192, Troy 224, Li 320. All TRAINERTYPE_NORMAL (no explicit moves; movesets come from level-up data). Class DVs dn 9, 8, 8, 8 (data/trainers/dvs.asm:61).

Wild encounters

data/wild/johto_grass.asm:33 def_grass_wildmons SPROUT_TOWER_3F - byte for byte identical to the 2F table: rates 2/2/2 percent, morn+day all Rattata L3-L6, nite Gastly L3-L6 mixed with Rattata L3/L5/L5. No water/fish/headbutt entry.

---

MAP_VIOLET_CITY

• Script: maps/VioletCity.asm
• Blocks: maps/VioletCity.blk (data/maps/blocks.asm:532)
• Header: data/maps/maps.asm:251 -> TILESET_JOHTO, TOWN, LANDMARK_VIOLET_CITY, MUSIC_VIOLET_CITY, phone FALSE, PALETTE_AUTO, FISHGROUP_POND
• Dimensions / attributes: constants/map_constants.asm:230 (map_const VIOLET_CITY, 20, 18) = 40x36 cells; data/maps/attributes.asm:127 (map_attributes VioletCity, VIOLET_CITY, $05)
• Connections (data/maps/attributes.asm:127-130): south Route32/ROUTE_32 offset 0, west Route36/ROUTE_36 offset 0, east Route31/ROUTE_31 offset 9. No north connection.

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	9	17	VIOLET_MART	2
2	18	17	VIOLET_GYM	1
3	30	17	EARLS_POKEMON_ACADEMY	1
4	3	15	VIOLET_NICKNAME_SPEECH_HOUSE	1
5	31	25	VIOLET_POKECENTER_1F	1
6	21	29	VIOLET_KYLES_HOUSE	1
7	23	5	SPROUT_TOWER_1F	1
8	39	24	ROUTE_31_VIOLET_GATE	1
9	39	25	ROUTE_31_VIOLET_GATE	2

Coord events (def_coord_events)

None.

BG events (def_bg_events)

x	y	type	script/item
24	20	BGEVENT_READ	VioletCitySign
15	17	BGEVENT_READ	VioletGymSign
24	8	BGEVENT_READ	SproutTowerSign
27	17	BGEVENT_READ	EarlsPokemonAcademySign
32	25	BGEVENT_READ	VioletCityPokecenterSign (jumpstd PokecenterSignScript)
10	17	BGEVENT_READ	VioletCityMartSign (jumpstd MartSignScript)
37	14	BGEVENT_ITEM	VioletCityHiddenHyperPotion = hiddenitem HYPER_POTION, EVENT_VIOLET_CITY_HIDDEN_HYPER_POTION

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
VIOLETCITY_EARL	SPRITE_FISHER	13	16	SPRITEMOVEDATA_SPINRANDOM_SLOW, pal PAL_NPC_GREEN	OBJECTTYPE_SCRIPT	VioletCityEarlScript	EVENT_VIOLET_CITY_EARL
VIOLETCITY_LASS	SPRITE_LASS	28	28	SPRITEMOVEDATA_WANDER, radius 2/2, pal PAL_NPC_GREEN	OBJECTTYPE_SCRIPT	VioletCityLassScript	-1
VIOLETCITY_SUPER_NERD	SPRITE_SUPER_NERD	24	14	SPRITEMOVEDATA_WANDER, radius 1/2, pal PAL_NPC_RED	OBJECTTYPE_SCRIPT	VioletCitySuperNerdScript	-1
VIOLETCITY_GRAMPS	SPRITE_GRAMPS	17	20	SPRITEMOVEDATA_WALK_LEFT_RIGHT, radius 1/0	OBJECTTYPE_SCRIPT	VioletCityGrampsScript	-1
VIOLETCITY_YOUNGSTER	SPRITE_YOUNGSTER	5	18	SPRITEMOVEDATA_SPINRANDOM_SLOW, pal PAL_NPC_GREEN	OBJECTTYPE_SCRIPT	VioletCityYoungsterScript	-1
VIOLETCITY_FRUIT_TREE	SPRITE_FRUIT_TREE	14	29	SPRITEMOVEDATA_STILL	OBJECTTYPE_SCRIPT	VioletCityFruitTree = fruittree FRUITTREE_VIOLET_CITY	-1
VIOLETCITY_POKE_BALL1	SPRITE_POKE_BALL	4	1	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	VioletCityPPUp	EVENT_VIOLET_CITY_PP_UP
VIOLETCITY_POKE_BALL2	SPRITE_POKE_BALL	35	5	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	VioletCityRareCandy	EVENT_VIOLET_CITY_RARE_CANDY

Scripts of interest

• VioletCityFlypointCallback (48:4c6d), registered as callback MAPCALLBACK_NEWMAP: a single setflag ENGINE_FLYPOINT_VIOLET then endcallback. Entering the map at all unlocks Fly to Violet.
• VioletCityEarlScript: spins, faceplayer, writetext Text_EarlAsksIfYouBeatFalkner, yesorno. Answering yes is the .PointlessJump arm (one line of text, no state change). Answering no is .FollowEarl: playmusic MUSIC_SHOW_ME_AROUND, follow VIOLETCITY_EARL, PLAYER, a long VioletCityFollowEarl_MovementData walk to the academy door, stopfollow, disappear VIOLETCITY_EARL, clearevent EVENT_EARLS_ACADEMY_EARL. A bot that does not want to be dragged across the map should answer yes, or simply not talk to him.
• The four remaining townsfolk are jumptextfaceplayer one-liners.

Flags and events

constant	defined in	read/written by	meaning for a bot
ENGINE_FLYPOINT_VIOLET (66)	constants/engine_flags.asm:81	VioletCityFlypointCallback	Fly destination unlocked on first map load
EVENT_VIOLET_CITY_EARL (1738)	constants/event_flags.asm:1132	object-event flag; set by disappear in .FollowEarl	Clear = Earl still outside
EVENT_VIOLET_CITY_PP_UP (1603)	constants/event_flags.asm:996	object-event flag	Ball taken
EVENT_VIOLET_CITY_RARE_CANDY (1604)	constants/event_flags.asm:997	object-event flag	Ball taken
EVENT_VIOLET_CITY_HIDDEN_HYPER_POTION (176)	constants/event_flags.asm:186	hiddenitem operand at bg_event (37,14)	Hidden item taken

Items

item	how obtained	source	one-time flag
PP_UP	Poke Ball at (4,1)	VioletCityPPUp	EVENT_VIOLET_CITY_PP_UP
RARE_CANDY	Poke Ball at (35,5)	VioletCityRareCandy	EVENT_VIOLET_CITY_RARE_CANDY
HYPER_POTION	Hidden, A-press or Itemfinder on (37,14)	VioletCityHiddenHyperPotion	EVENT_VIOLET_CITY_HIDDEN_HYPER_POTION
berry	fruittree FRUITTREE_VIOLET_CITY at (14,29)	VioletCityFruitTree	daily reset, not an EVENT_*

None of these four are mentioned by the walkthrough section; they are listed because a bot walking this map will pass them.

Trainers

None on the overworld map.

Wild encounters

• Grass: no def_grass_wildmons VIOLET_CITY entry in data/wild/johto_grass.asm.
• Water (data/wild/johto_water.asm:225): rate 2 percent, L20 Poliwag, L15 Poliwag, L20 Poliwhirl - Surf only, i.e. not reachable in this section.
• Fishing group FISHGROUP_POND (data/maps/maps.asm:251), table in data/wild/fish.asm.

---

MAP_VIOLET_POKECENTER_1F

• Script: maps/VioletPokecenter1F.asm
• Blocks: shared VioletPokecenter1F_Blocks label in data/maps/blocks.asm:351 (same blockset as the other Pokecenter 1Fs; no dedicated .blk)
• Header: data/maps/maps.asm:256 -> TILESET_POKECENTER, INDOOR, LANDMARK_VIOLET_CITY, MUSIC_POKEMON_CENTER, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions / attributes: constants/map_constants.asm:235 (map_const VIOLET_POKECENTER_1F, 5, 4) = 10x8 cells; data/maps/attributes.asm:538
• Connections: none

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	3	7	VIOLET_CITY	5
2	4	7	VIOLET_CITY	5
3	0	7	POKECENTER_2F	1

Coord events / BG events: both empty.

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
VIOLETPOKECENTER1F_NURSE	SPRITE_NURSE	3	1	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	VioletPokecenterNurse (jumpstd PokecenterNurseScript)	-1
VIOLETPOKECENTER1F_SUPER_NERD	SPRITE_SUPER_NERD	7	6	SPRITEMOVEDATA_WALK_LEFT_RIGHT, radius 1/0, pal PAL_NPC_GREEN	OBJECTTYPE_SCRIPT	VioletPokecenter1FSuperNerdScript	-1
VIOLETPOKECENTER1F_GENTLEMAN	SPRITE_GENTLEMAN	1	4	SPRITEMOVEDATA_SPINRANDOM_SLOW	OBJECTTYPE_SCRIPT	VioletPokecenter1FGentlemanScript	-1
VIOLETPOKECENTER1F_YOUNGSTER	SPRITE_YOUNGSTER	8	1	SPRITEMOVEDATA_STANDING_DOWN, pal PAL_NPC_RED	OBJECTTYPE_SCRIPT	VioletPokecenter1FYoungsterScript	-1
VIOLETPOKECENTER1F_ELMS_AIDE	SPRITE_SCIENTIST	4	3	SPRITEMOVEDATA_STANDING_DOWN, pal PAL_NPC_BLUE	OBJECTTYPE_SCRIPT	VioletPokecenter1F_ElmsAideScript	EVENT_ELMS_AIDE_IN_VIOLET_POKEMON_CENTER

Scripts of interest

• VioletPokecenterNurse -> jumpstd PokecenterNurseScript: the only beat the walkthrough uses here ("go back to the Pokemon Center to heal").
• VioletPokecenter1F_ElmsAideScript is not reachable during this section: EVENT_ELMS_AIDE_IN_VIOLET_POKEMON_CENTER is set at new game (engine/events/std_scripts.asm:468), which masks the object, and is only cleared by Elm's .assistant phone call (engine/phone/scripts/elm.asm:84) queued by beating Falkner. It gives giveegg TOGEPI, EGG_LEVEL and belongs to the next section.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_ELMS_AIDE_IN_VIOLET_POKEMON_CENTER (1792)	constants/event_flags.asm:1186	set in engine/events/std_scripts.asm:468, cleared in engine/phone/scripts/elm.asm:84	Set = aide hidden. Stays set for the whole of this section

Items / Trainers / Wild encounters: none.

---

MAP_VIOLET_GYM

• Script: maps/VioletGym.asm
• Blocks: maps/VioletGym.blk (data/maps/blocks.asm:734)
• Header: data/maps/maps.asm:253 -> TILESET_ELITE_FOUR_ROOM, INDOOR, LANDMARK_VIOLET_CITY, MUSIC_GYM, phone TRUE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions / attributes: constants/map_constants.asm:232 (map_const VIOLET_GYM, 5, 8) = 10x16 cells; data/maps/attributes.asm:535
• Connections: none

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	4	15	VIOLET_CITY	2
2	5	15	VIOLET_CITY	2

Coord events (def_coord_events)

None. There is no scripted trip-wire in the gym; Abe and Rod fire off eyesight alone.

BG events (def_bg_events)

x	y	type	script/item
3	13	BGEVENT_READ	VioletGymStatue
6	13	BGEVENT_READ	VioletGymStatue

VioletGymStatue branches on checkflag ENGINE_ZEPHYRBADGE: unbeaten -> jumpstd GymStatue1Script; beaten -> gettrainername STRING_BUFFER_4, FALKNER, FALKNER1 + jumpstd GymStatue2Script. Reading it is a cheap way for a bot to confirm the badge landed.

Object events (def_object_events)

const	sprite	x	y	movement	type	script label	event flag
VIOLETGYM_FALKNER	SPRITE_FALKNER	5	1	SPRITEMOVEDATA_STANDING_DOWN, radius 0/0, pal PAL_NPC_BLUE	OBJECTTYPE_SCRIPT, sight 0	VioletGymFalknerScript	-1
VIOLETGYM_YOUNGSTER1	SPRITE_YOUNGSTER	7	6	SPRITEMOVEDATA_STANDING_LEFT, radius 2/0, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 3	TrainerBirdKeeperRod	-1
VIOLETGYM_YOUNGSTER2	SPRITE_YOUNGSTER	2	10	SPRITEMOVEDATA_STANDING_RIGHT, radius 2/0, pal PAL_NPC_BLUE	OBJECTTYPE_TRAINER, sight 3	TrainerBirdKeeperAbe	-1
VIOLETGYM_GYM_GUIDE	SPRITE_GYM_GUIDE	7	13	SPRITEMOVEDATA_STANDING_DOWN, radius 0/0, pal PAL_NPC_RED	OBJECTTYPE_SCRIPT, sight 0	VioletGymGuideScript	-1

Walking in at (4,15)/(5,15) and heading north, Abe (facing right at y=10) is met before Rod (facing left at y=6), which is the order the walkthrough gives even though it names Abe first and Rod second.

Scripts of interest

• VioletGymFalknerScript (56:412f): faceplayer, opentext, checkevent EVENT_BEAT_FALKNER / iftrue .FightDone. First pass: writetext FalknerIntroText, winlosstext FalknerWinLossText, 0, loadtrainer FALKNER, FALKNER1, startbattle, reloadmapafterbattle, setevent EVENT_BEAT_FALKNER, writetext ReceivedZephyrBadgeText, playsound SFX_GET_BADGE, waitsfx, setflag ENGINE_ZEPHYRBADGE, readvar VAR_BADGES, scall VioletGymActivateRockets. Then .FightDone (56:4159): checkevent EVENT_GOT_TM31_MUD_SLAP / iftrue .SpeechAfterTM; otherwise setevent EVENT_BEAT_BIRD_KEEPER_ROD, setevent EVENT_BEAT_BIRD_KEEPER_ABE (the two gym trainers are force-flagged so they never re-trigger), setmapscene ELMS_LAB, SCENE_ELMSLAB_NOOP, specialphonecall SPECIALCALL_ASSISTANT, writetext FalknerZephyrBadgeText, promptbutton, verbosegiveitem TM_MUD_SLAP, iffalse .NoRoomForMudSlap, setevent EVENT_GOT_TM31_MUD_SLAP, writetext FalknerTMMudSlapText. Unlike Sage Li, this one does check verbosegiveitem's return, so a full bag leaves EVENT_GOT_TM31_MUD_SLAP clear and the TM is offered again on the next talk.
• VioletGymActivateRockets (56:4185): ifequal 7, .RadioTowerRockets, ifequal 6, .GoldenrodRockets against the VAR_BADGES count. With one badge this is a no-op; it exists so that a late Violet clear still arms the Rocket arcs.
• TrainerBirdKeeperRod (56:4194), TrainerBirdKeeperAbe (56:41a8): standard trainer headers + endifjustbattled after-battle text.
• VioletGymGuideScript: branches on EVENT_BEAT_FALKNER; pure text.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_BEAT_FALKNER (1213)	constants/event_flags.asm:706	read+written by VioletGymFalknerScript; read by VioletGymGuideScript	The gym-cleared flag
ENGINE_ZEPHYRBADGE (26)	constants/engine_flags.asm:38	setflag in VioletGymFalknerScript; checkflag in VioletGymStatue; CheckBadge in engine/events/overworld.asm	The badge bit. Gates out-of-battle Flash and the Gen 2 attack boost (engine/battle/core.asm:6566)
EVENT_GOT_TM31_MUD_SLAP (8)	constants/event_flags.asm:14	VioletGymFalknerScript	TM31 collected
EVENT_BEAT_BIRD_KEEPER_ROD (1019)	constants/event_flags.asm:494	TrainerBirdKeeperRod; also force-set by VioletGymFalknerScript.FightDone	Beaten
EVENT_BEAT_BIRD_KEEPER_ABE (1020)	constants/event_flags.asm:495	TrainerBirdKeeperAbe; also force-set by .FightDone	Beaten
SCENE_ELMSLAB_NOOP	maps/ElmsLab.asm (macro-generated)	setmapscene ELMS_LAB, ... in .FightDone	Disarms the lab's remaining scene script
SPECIALCALL_ASSISTANT	constants/phone_constants.asm:47	specialphonecall in .FightDone; consumed by ElmPhoneCallerScript (engine/phone/scripts/elm.asm:67)	Queues the Togepi-egg phone call

Items

item	how obtained	source	one-time flag
ZEPHYRBADGE	Automatic on beating Falkner	VioletGymFalknerScript (setflag ENGINE_ZEPHYRBADGE)	ENGINE_ZEPHYRBADGE
TM_MUD_SLAP (TM31)	verbosegiveitem after the badge text	VioletGymFalknerScript.FightDone	EVENT_GOT_TM31_MUD_SLAP

Trainers

const	class	id	party (data/trainers/parties.asm)	script label	rematch/phone
BIRD_KEEPER, ROD	BIRD_KEEPER (18)	ROD (1)	BirdKeeperGroup "ROD" (0e:5f05 group base): L7 Pidgey, L7 Pidgey, TRAINERTYPE_NORMAL	TrainerBirdKeeperRod	none
BIRD_KEEPER, ABE	BIRD_KEEPER	ABE (2)	BirdKeeperGroup "ABE": L9 Spearow, TRAINERTYPE_NORMAL	TrainerBirdKeeperAbe	none
FALKNER, FALKNER1	FALKNER (1)	FALKNER1 (1)	FalknerGroup (0e:59c2), TRAINERTYPE_MOVES: L7 Pidgey (TACKLE, MUD_SLAP), L9 Pidgeotto (TACKLE, MUD_SLAP, GUST)	VioletGymFalknerScript (loadtrainer)	listed in data/trainers/leaders.asm:8

Prize money: Bird Keeper base 6 (data/trainers/attributes.asm) -> Rod 6 x 7 x 4 = 168, Abe 6 x 9 x 4 = 216. Falkner base 25 -> 25 x 9 x 4 = 900. Falkner DVs dn 9, 10, 7, 7 (data/trainers/dvs.asm:5); Bird Keeper dn 9, 8, 8, 8 (line 28).

Wild encounters

None (indoor gym).

3. Blockers and gates

Gate	Enforced by (file:label)	Requirement	Unlock condition
Sprout Tower 3F rival cutscene fires before you can reach Sage Li	maps/SproutTower3F.asm coord_event 11, 9, SCENE_SPROUTTOWER3F_RIVAL_ENCOUNTER, SproutTower3FRivalScene	Standing on (11,9) while wSproutTower3FSceneID == 0	The scene's own setscene SCENE_SPROUTTOWER3F_NOOP. Not a hard block - the tile is on the only path north
HM05 Flash	maps/SproutTower3F.asm:SageLiScript	Beat SAGE, LI (loadtrainer + startbattle)	verbosegiveitem HM_FLASH + setevent EVENT_GOT_HM05_FLASH
Using Flash outside battle	engine/events/overworld.asm FlashFunction.CheckUseFlash (03:48f1): ld de, ENGINE_ZEPHYRBADGE / farcall CheckBadge / jr c, .nozephyrbadge	ENGINE_ZEPHYRBADGE set and wTimeOfDayPalset == DARKNESS_PALSET	Beat Falkner. Note the second half: even with the badge, Flash is refused on any map that is not a dark cave (.notadarkcave -> FieldMoveFailed)
ZEPHYRBADGE attack boost / obedience	engine/battle/core.asm:6566 (the and mask that starts (1 << ZEPHYRBADGE))	badge bit	Beat Falkner
Gym trainers Abe and Rod	maps/VioletGym.asm object events, OBJECTTYPE_TRAINER sight 3 on shared rows	eyesight only; they do not physically block the aisle	Beating them, or EVENT_BEAT_BIRD_KEEPER_* being force-set by VioletGymFalknerScript.FightDone
Falkner re-battle	maps/VioletGym.asm:VioletGymFalknerScript checkevent EVENT_BEAT_FALKNER / iftrue .FightDone	none	one-shot
Sage Li re-battle	maps/SproutTower3F.asm:SageLiScript checkevent EVENT_GOT_HM05_FLASH / iftrue .GotFlash	none	one-shot, keyed on the HM flag rather than on EVENT_BEAT_SAGE_LI
Sprout Tower is a DUNGEON	data/maps/maps.asm:79-81	-	ESCAPE_ROPE and Dig work here, which is what the walkthrough's "you may use that to get out of the tower" relies on

Nothing in this section is gated on a field move, a key item, or an NPC standing on a tile. The only hard requirement is winning battles.

4. Bot checklist

Coordinates are asm map cells. Port driver form: world:setMap("<MAP_CONST>", x, y, facing), as in tests/drivers/gold_walk_smoke.lua:58.

#	Map	Target	Intent	Precondition	Postcondition
1	SPROUT_TOWER_1F	warp 1 (9,15)	enter from VIOLET_CITY (23,5)	-	on 1F
2	SPROUT_TOWER_1F	(6,4)	walk onto warp 3	-	on SPROUT_TOWER_2F at (6,4)
3	SPROUT_TOWER_2F	SPROUTTOWER2F_SAGE1 at (14,4), sight 3 wide facing spin	step into his line, battle	EVENT_BEAT_SAGE_NICO clear	EVENT_BEAT_SAGE_NICO set
4	SPROUT_TOWER_2F	(17,3)	walk onto warp 3	-	on SPROUT_TOWER_1F at (17,3)
5	SPROUT_TOWER_1F	ball at (16,7)	face + A	EVENT_SPROUT_TOWER_1F_PARLYZ_HEAL clear	PARLYZ_HEAL in bag, flag set
6	SPROUT_TOWER_1F	SPROUTTOWER1F_SAGE3 at (2,1), facing RIGHT, sight 1	step to (3,1), battle	EVENT_BEAT_SAGE_CHOW clear	EVENT_BEAT_SAGE_CHOW set
7	SPROUT_TOWER_1F	(2,6)	walk onto warp 4	-	on SPROUT_TOWER_2F at (2,6)
8	SPROUT_TOWER_2F	ball at (3,1)	face + A	EVENT_SPROUT_TOWER_2F_X_DEFEND clear	X_DEFEND in bag, flag set
9	SPROUT_TOWER_2F	SPROUTTOWER2F_SAGE2 at (3,15), facing UP, sight 4	approach from above, battle	EVENT_BEAT_SAGE_EDMOND clear	EVENT_BEAT_SAGE_EDMOND set
10	SPROUT_TOWER_2F	(10,14)	walk onto warp 4	-	on SPROUT_TOWER_3F at (10,14)
11	SPROUT_TOWER_3F	ball at (6,14)	face + A	EVENT_SPROUT_TOWER_3F_POTION clear	POTION in bag, flag set
12	SPROUT_TOWER_3F	SPROUTTOWER3F_SAGE1 at (8,13), facing RIGHT, sight 3	battle	EVENT_BEAT_SAGE_JIN clear	EVENT_BEAT_SAGE_JIN set
13	SPROUT_TOWER_3F	SPROUTTOWER3F_SAGE4 at (11,11), facing LEFT, sight 3	battle	EVENT_BEAT_SAGE_NEAL clear	EVENT_BEAT_SAGE_NEAL set
14	SPROUT_TOWER_3F	SPROUTTOWER3F_SAGE2 at (8,8), facing DOWN, sight 2	battle	EVENT_BEAT_SAGE_TROY clear	EVENT_BEAT_SAGE_TROY set
15	SPROUT_TOWER_3F	(11,9)	walk onto the coord event	scene id == SCENE_SPROUTTOWER3F_RIVAL_ENCOUNTER (0)	cutscene runs; player ends at (11,5); EVENT_RIVAL_SPROUT_TOWER set; scene id -> 1
16	SPROUT_TOWER_3F	SPROUTTOWER3F_SAGE3 at (10,2)	face + A, battle SAGE, LI	EVENT_GOT_HM05_FLASH clear; bag must have room for an HM	HM_FLASH, EVENT_GOT_HM05_FLASH, EVENT_BEAT_SAGE_LI
17	SPROUT_TOWER_3F	ball at (14,1)	face + A	EVENT_SPROUT_TOWER_3F_ESCAPE_ROPE clear	ESCAPE_ROPE in bag, flag set
18	SPROUT_TOWER_3F	(10,14)	warp 1, then 2F warp 1/2/3 down to 1F, then 1F warp 1 (9,15)	-	back on VIOLET_CITY at (23,5)
19	VIOLET_CITY	(31,25)	walk onto warp 5	-	on VIOLET_POKECENTER_1F at (3,7)
20	VIOLET_POKECENTER_1F	VIOLETPOKECENTER1F_NURSE at (3,1)	face + A, accept heal	-	party healed
21	VIOLET_POKECENTER_1F	(3,7)	warp 1	-	back on VIOLET_CITY at (31,25)
22	VIOLET_CITY	(18,17)	walk onto warp 2	-	on VIOLET_GYM at (4,15)
23	VIOLET_GYM	VIOLETGYM_YOUNGSTER2 at (2,10), facing RIGHT, sight 3	enter his row, battle Abe	EVENT_BEAT_BIRD_KEEPER_ABE clear	flag set
24	VIOLET_GYM	VIOLETGYM_YOUNGSTER1 at (7,6), facing LEFT, sight 3	enter his row, battle Rod	EVENT_BEAT_BIRD_KEEPER_ROD clear	flag set
25	VIOLET_GYM	(4,15) -> VIOLET_CITY -> (31,25) PC	optional re-heal before the leader	-	party healed
26	VIOLET_GYM	VIOLETGYM_FALKNER at (5,1)	face + A, battle	EVENT_BEAT_FALKNER clear	EVENT_BEAT_FALKNER, ENGINE_ZEPHYRBADGE, Rod/Abe flags force-set, SCENE_ELMSLAB_NOOP, SPECIALCALL_ASSISTANT queued
27	VIOLET_GYM	same NPC, second talk if bag was full	face + A	EVENT_GOT_TM31_MUD_SLAP clear	TM_MUD_SLAP, EVENT_GOT_TM31_MUD_SLAP
28	VIOLET_GYM	bg_event (3,13) or (6,13)	face + A (verification only)	-	GymStatue2Script text = badge confirmed

Optional pickups on the way through, none of which the walkthrough mentions: VIOLET_CITY PP Up (4,1), Rare Candy (35,5), hidden Hyper Potion (37,14), berry tree (14,29).

5. Port coverage

Beat	Port file	Status
Map load, block grid, warps for all six maps (data-driven from the ROM)	src/world/gen2/Map.lua, src/import/RomExtractorGen2.lua (readMapGroupEntry, mapNameByIds)	implemented - ids are the same MAP_* names, see tools/rom_manifest_gold.json -> constants.mapGroups
MAPCALLBACK_NEWMAP -> setflag ENGINE_FLYPOINT_VIOLET	src/world/gen2/World.lua (callback dispatch), driver tests/drivers/gold_map_callbacks.lua	implemented
Fly point 66 = Violet	src/world/gen2/FieldMoves.lua:346 ({ landmark = "LANDMARK_VIOLET_CITY", spawn = "SPAWN_VIOLET", flag = 66 })	implemented
Script VM for every maps/*.asm script in this section	src/script/gen2/Vm.lua, src/script/gen2/Opcodes.lua	implemented - scripts are disassembled from the ROM, not hand-ported, so SageLiScript / VioletGymFalknerScript run as-is
coord_event + scene ids (the 3F rival trip-wire)	src/world/gen2/World.lua:5013 (coord event scan), :1183 / :5026 (scene scripts)	implemented
Cutscene opcodes used by SproutTower3FRivalScene (showemote, earthquake, applymovement, turnobject, disappear, setscene, playmusic)	src/script/gen2/Opcodes.lua:122/125, src/world/gen2/World.lua:1006/1528/647, src/script/gen2/Movement.lua	implemented
special FadeOutMusic / FadeOutToBlack / ReloadSpritesNoPalettes / FadeInFromBlack / RestartMapMusic	src/script/gen2/Specials.lua	implemented
Object masking by event flag (rival, item balls)	src/world/gen2/Events.lua (objectVisible), documented against CheckObjectFlag	implemented
Trainer objects: eyesight, approach walk, seen text, battle, beat flag	src/world/gen2/Trainers.lua, src/world/gen2/World.lua:5205-5253, driver tests/drivers/gold_trainer_smoke.lua	implemented
loadtrainer / startbattle for Sage Li and Falkner	src/script/gen2/Vm.lua, src/battle/gen2/Battle.lua	implemented
Gym leader battle music	src/battle/gen2/BattleMusic.lua:24 (FALKNER = true)	implemented
Prize money (Falkner 900 = 25 x 9 x 4)	src/battle/gen2/Prize.lua, tests/gen2_prize_test.lua	implemented
setflag ENGINE_ZEPHYRBADGE (id 26) and readvar VAR_BADGES	src/script/gen2/Vm.lua:670, src/world/gen2/World.lua:117/1240, tests/gen2_world_test.lua:1783	implemented
Flash badge gate (FlashFunction.CheckUseFlash)	src/world/gen2/FieldMoves.lua:105 (FLASH = "ZEPHYR"), tests/gen2_world_test.lua:755-781	implemented, including the "refused before the darkness check" ordering
verbosegiveitem (HM05, TM31) incl. the iffalse no-room arm	src/script/gen2/Vm.lua:490-500	implemented
Hidden item at Violet City (37,14)	src/world/gen2/HiddenItems.lua, src/world/gen2/World.lua:5285	implemented
Berry tree fruittree FRUITTREE_VIOLET_CITY	src/script/gen2/CallAsm.lua:75-77, src/core/gen2/Apricorns.lua:363	implemented
specialphonecall SPECIALCALL_ASSISTANT	src/script/gen2/Opcodes.lua:161, src/core/gen2/Phone.lua:390	implemented
giveegg TOGEPI (Elm's aide, next section's payoff)	src/script/gen2/Vm.lua:453, driver tests/drivers/gold_egg_hatch.lua	implemented
Earl's follow / stopfollow escort	src/script/gen2/Vm.lua:982	implemented
Poke Ball item pickup (OBJECTTYPE_ITEMBALL) - Parlyz Heal, X Defend, Potion, Escape Rope, PP Up, Rare Candy	src/import/RomExtractorGen2.lua:2969 writes obj.itemball; nothing in src/ reads it, and World:interact() (src/world/gen2/World.lua:5257) has no itemball branch (trainer / strength boulder / scriptKey / bg sign / hidden item only). src/script/gen2/CallAsm.lua:550 stubs TryReceiveItem out on purpose	missing - the balls render and are masked correctly, but pressing A on one does nothing. Every item ball in this section is unobtainable in the port today
Hand-ported per-map Lua for Sprout Tower / Violet Gym	none - by design	n/a (the port runs the ROM's own bytecode)

6. Unresolved / verify by hand

1. "X Accuracy" in the Sprout Tower item list. The walkthrough's header lists Escape Rope, HM05, Parlyz Heal, Potion, X Accuracy, and the prose says "grab that X Defense above you". The asm has exactly one such ball, SproutTower2FXDefend = itemball X_DEFEND at 2F (3,1). There is no X_ACCURACY anywhere in maps/SproutTower*.asm. The header list is wrong; the prose is right.

2. "Go up to the item to the right of the monk. In reality, it is a... Level 3 Rattata" and the follow-up "Go back to the Rattata you faced before, and now it's an Escape Rope." Nothing in maps/SproutTower3F.asm supports this. The object at (14,1) is a plain object_event ... OBJECTTYPE_ITEMBALL, 0, SproutTower3FEscapeRope, EVENT_SPROUT_TOWER_3F_ESCAPE_ROPE whose script label is a bare itemball ESCAPE_ROPE. There is no wildbattle, no loadwildmon, no second object at that cell, and no branch on EVENT_GOT_HM05_FLASH anywhere near it. This looks like the walkthrough importing the Gen 1 Rocket Hideout Voltorb trick. Treat the ball at (14,1) as an ordinary Escape Rope.

3. "Pokemon found in Sprout Tower: Rattata, Bellsprout, Gastly." data/wild/johto_grass.asm gives Rattata (morn/day) and Gastly + Rattata (nite) for SPROUT_TOWER_2F and SPROUT_TOWER_3F, and no table at all for SPROUT_TOWER_1F. Bellsprout is not a Sprout Tower wild encounter; the Bellsprouts are the sages' party members.

4. Sage Li's party order. The walkthrough lists L7 Bellsprout, L10 Hoothoot, L7 Bellsprout. data/trainers/parties.asm SageGroup "LI" is db 7, BELLSPROUT / db 7, BELLSPROUT / db 10, HOOTHOOT - the Hoothoot is last, not second. The 320G figure the walkthrough quotes only works with the asm order, since ComputeTrainerReward uses the level of the last party row (8 x 10 x 4 = 320).

5. Walkthrough trainer order in the gym. The text says "Head up to fight your trainer battles first. Bird Keeper Abe ... Head up the path to the second trainer. Bird Keeper Rod." Geometrically that is correct (Abe at y=10 is south of Rod at y=6), but be aware the object const order in the file is Rod first (VIOLETGYM_YOUNGSTER1), Abe second (VIOLETGYM_YOUNGSTER2), which is the opposite of the walk order. Do not index trainers by object const when following the prose.

6. "You'll need the 1st badge to use it [Flash]". True but incomplete: FlashFunction.CheckUseFlash (engine/events/overworld.asm, 03:48f1) requires ENGINE_ZEPHYRBADGE and wTimeOfDayPalset == DARKNESS_PALSET. With the badge, on any non-dark map, the move still fails through .notadarkcave -> FieldMoveFailed. A bot should not treat "have badge" as "Flash will work here".

7. EXP values. The walkthrough quotes per-Pokemon EXP figures (54, 108, 126, 217, ...). Those are computed from base experience and level at runtime (engine/battle/experience.asm / data/pokemon/base_stats/), not stored anywhere as a per-trainer constant, so they were not verified against a single asm line here. The money figures were: all seven quoted values match base reward x last party level x 4.

8. "you should be around an hour into the game now" and the video link - prose, nothing to resolve.