gen1recomp/docs/gold-walkthrough/asm-walk/section-21-power-plant-and-cerulean-city-gym.md

Section 21 - Power Plant and Cerulean City Gym

Source: ../section-21-power-plant-and-cerulean-city-gym.txt Maps covered: MAP_ROUTE_5, MAP_ROUTE_5_SAFFRON_GATE, MAP_ROUTE_5_CLEANSE_TAG_HOUSE, MAP_ROUTE_5_UNDERGROUND_PATH_ENTRANCE, MAP_CERULEAN_CITY, MAP_CERULEAN_GYM, MAP_ROUTE_9, MAP_ROUTE_10_NORTH, MAP_POWER_PLANT, MAP_ROUTE_24, MAP_ROUTE_25, MAP_BILLS_HOUSE Badges / key milestones in this section: CASCADEBADGE (ENGINE_CASCADEBADGE) from Misty; the whole Machine Part chain (EVENT_MET_MANAGER_AT_POWER_PLANT -> EVENT_MET_ROCKET_GRUNT_AT_CERULEAN_GYM -> Route 24 grunt battle -> EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM); Misty's date on Route 25 clears EVENT_TRAINERS_IN_CERULEAN_GYM and is what actually populates the gym.

Coordinate note: warp_event / bg_event / object_event / coord_event x,y are in map cells (walk tiles), while map_const NAME, W, H in constants/map_constants.asm is in blocks. Cells = 2x blocks, so map_const ROUTE_9, 30, 9 is a 60x18 cell map and warp_event 48, 15 is inside it.

---

1. Route order

#	Map constant	asm file	Enter via	Leaves via	Why (walkthrough beat)
1	MAP_ROUTE_5_SAFFRON_GATE	maps/Route5SaffronGate.asm	from SAFFRON_CITY warp 9 into gate warps 3/4 (4,7 / 5,7)	gate warps 1/2 (4,0 / 5,0) -> ROUTE_5 warps 2/3	"head north through the route-changing station"
2	MAP_ROUTE_5	maps/Route5.asm	gate warps	north connection -> CERULEAN_CITY	walk north; optional detour to the old Day Care building
3	MAP_ROUTE_5_CLEANSE_TAG_HOUSE	maps/Route5CleanseTagHouse.asm	ROUTE_5 warp 4 at 10,11	warps 1/2 at 2,7 / 3,7 -> ROUTE_5 warp 4	granny gives CLEANSE_TAG
4	MAP_CERULEAN_CITY	maps/CeruleanCity.asm	south connection from ROUTE_5	warp 5 at 30,23 -> CERULEAN_GYM	first (empty) gym visit
5	MAP_CERULEAN_GYM	maps/CeruleanGym.asm	CERULEAN_CITY warp 5	warps 1/2 at 4,15 / 5,15	gym is empty: EVENT_TRAINERS_IN_CERULEAN_GYM is still set from InitializeEventsScript
6	MAP_ROUTE_9	maps/Route9.asm	east connection from CERULEAN_CITY	south connection -> ROUTE_10_NORTH	six trainers; needs CUT at the west entrance
7	MAP_ROUTE_10_NORTH	maps/Route10North.asm	north connection from ROUTE_9	warp 2 at 3,9 -> POWER_PLANT	Pokemon Center at warp 1 (11,1); Surf the river to the plant
8	MAP_POWER_PLANT	maps/PowerPlant.asm	ROUTE_10_NORTH warp 2	warps 1/2 at 2,17 / 3,17	talk to the MANAGER, then trip the 5,12 coord event on the way out
9	MAP_CERULEAN_CITY	maps/CeruleanCity.asm	FLY (SPAWN_CERULEAN, data/maps/spawn_points.asm:17)	warp 5 -> CERULEAN_GYM	"Fly back to Cerulean City"
10	MAP_CERULEAN_GYM	maps/CeruleanGym.asm	CERULEAN_CITY warp 5	warps 1/2	SCENE_CERULEANGYM_GRUNT_RUNS_OUT fires on entry
11	MAP_ROUTE_24	maps/Route24.asm	north connection from CERULEAN_CITY	north connection -> ROUTE_25	Rocket grunt on the old Nugget Bridge
12	MAP_ROUTE_25	maps/Route25.asm	south connection from ROUTE_24	warp 1 at 47,5 -> BILLS_HOUSE	six-pack trainers, Kevin's Nugget, Protein, Misty's date coord events
13	MAP_BILLS_HOUSE	maps/BillsHouse.asm	ROUTE_25 warp 1	warps 1/2 at 2,7 / 3,7	Bill's grandpa evolution-stone chain
14	MAP_CERULEAN_CITY -> MAP_CERULEAN_GYM	maps/CeruleanGym.asm	FLY, then warp 5	-	three Swimmers, hidden MACHINE_PART at 3,8, Misty

Spills into the next section: maps/Route9.asm warp 1 at 48,15 leads to ROCK_TUNNEL_1F, and the Machine Part is returned to PowerPlantManager (which is what unlocks the Magnet Train and the Underground Path). The walkthrough text stops at Misty; Rock Tunnel / Lavender and the return trip belong to the neighbouring sections.

2. Maps

MAP_ROUTE_5

• Script: maps/Route5.asm
• Blocks: maps/Route5.blk
• Header: data/maps/maps.asm:489 -> map Route5, TILESET_KANTO, ROUTE, LANDMARK_ROUTE_5, MUSIC_ROUTE_3, FALSE, PALETTE_AUTO, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:453 -> map_const ROUTE_5, 10, 9 (group SAFFRON = 25, id 1)
• Connections (data/maps/attributes.asm:356): north CERULEAN_CITY (offset -5), south SAFFRON_CITY (offset -5)

Warps (def_warp_events)

idx	x	y	destination map	dest warp
1	17	15	ROUTE_5_UNDERGROUND_PATH_ENTRANCE	1
2	8	17	ROUTE_5_SAFFRON_GATE	1
3	9	17	ROUTE_5_SAFFRON_GATE	2
4	10	11	ROUTE_5_CLEANSE_TAG_HOUSE	1

Coord events - none (def_coord_events is empty).

BG events

x	y	type	script/item
17	17	BGEVENT_READ	Route5UndergroundPathSign
10	11	BGEVENT_READ	HouseForSaleSign

Object events

const	sprite	x	y	movement	type	script label	event flag
ROUTE5_POKEFAN_M	SPRITE_POKEFAN_M	17	16	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	Route5PokefanMScript	EVENT_ROUTE_5_6_POKEFAN_M_BLOCKS_UNDERGROUND_PATH

Scripts of interest

• Route5PokefanMScript - one jumptextfaceplayer Route5PokefanMText: "The road is closed until the problem at the POWER PLANT is solved." He stands at 17,16, directly below the Underground Path door at 17,15, so the tile is physically blocked. His object row carries EVENT_ROUTE_5_6_POKEFAN_M_BLOCKS_UNDERGROUND_PATH; object events are hidden when their flag is set, and that flag is not in InitializeEventsScript, so at this point in the game it is clear and he is present. PowerPlantManager setevents it after the part is returned (maps/PowerPlant.asm:164), removing him.
• Route5UndergroundPathSign / HouseForSaleSign - plain jumptext. Note the "House for Sale" sign shares the exact tile 10,11 with warp 4 into the Cleanse Tag house.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_ROUTE_5_6_POKEFAN_M_BLOCKS_UNDERGROUND_PATH	constants/event_flags.asm:1299	object row maps/Route5.asm:56 and maps/Route6.asm:43; setevent at maps/PowerPlant.asm:164	clear = NPC present and Underground Path door unreachable; set = NPC gone

Items - none on the route proper.

Wild encounters - data/wild/kanto_grass.asm:425 def_grass_wildmons ROUTE_5, 10/10/10 percent. Gold morn+day: L13 PIDGEY, L13 BELLSPROUT, L14 PIDGEY, L15 PIDGEY, L12 ABRA, L14 ABRA, L14 ABRA. Gold nite: L13 ODDISH, L14 ODDISH, L13 BELLSPROUT, L15 GLOOM, L12 ABRA, L14 ABRA, L14 ABRA. No water table. Fishing group FISHGROUP_SHORE (data/wild/fish.asm .Shore_*).

---

MAP_ROUTE_5_SAFFRON_GATE

• Script: maps/Route5SaffronGate.asm
• Blocks: shared, data/maps/blocks.asm
• Header: data/maps/maps.asm:502 -> map Route5SaffronGate, TILESET_GATE, GATE, LANDMARK_ROUTE_5, MUSIC_VIRIDIAN_CITY, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:466 -> map_const ROUTE_5_SAFFRON_GATE, 5, 4 (group 25, id 14)

Warps

idx	x	y	destination map	dest warp
1	4	0	ROUTE_5	2
2	5	0	ROUTE_5	3
3	4	7	SAFFRON_CITY	9
4	5	7	SAFFRON_CITY	9

Object events

const	sprite	x	y	movement	type	script label	event flag
ROUTE5SAFFRONGATE_OFFICER	SPRITE_OFFICER	0	4	SPRITEMOVEDATA_STANDING_RIGHT	OBJECTTYPE_SCRIPT	Route5SaffronGateOfficerScript	-1

Nothing here gates progress: the officer is a single jumptextfaceplayer, and there are no coord or bg events.

---

MAP_ROUTE_5_CLEANSE_TAG_HOUSE

• Script: maps/Route5CleanseTagHouse.asm
• Blocks: shared, data/maps/blocks.asm:196 (Route5CleanseTagHouse_Blocks)
• Header: data/maps/maps.asm:503 -> map Route5CleanseTagHouse, TILESET_HOUSE, INDOOR, LANDMARK_ROUTE_5, MUSIC_VIRIDIAN_CITY, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:467 -> map_const ROUTE_5_CLEANSE_TAG_HOUSE, 4, 4 (group 25, id 15)

Warps

idx	x	y	destination map	dest warp
1	2	7	ROUTE_5	4
2	3	7	ROUTE_5	4

BG events

x	y	type	script/item
0	1	BGEVENT_READ	HouseForSaleBookshelf (jumpstd DifficultBookshelfScript)
1	1	BGEVENT_READ	HouseForSaleBookshelf

Object events

const	sprite	x	y	movement	type	script label	event flag
ROUTE5CLEANSETAGHOUSE_GRANNY	SPRITE_GRANNY	2	5	SPRITEMOVEDATA_SPINCLOCKWISE	OBJECTTYPE_SCRIPT	Route5CleanseTagHouseGrannyScript	-1
ROUTE5CLEANSETAGHOUSE_TEACHER	SPRITE_TEACHER	5	3	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_SCRIPT	Route5CleanseTagHouseTeacherScript	-1

Scripts of interest

• Route5CleanseTagHouseGrannyScript (pokegold.sym 61:57de) - faceplayer / opentext / checkevent EVENT_GOT_CLEANSE_TAG / iftrue .GotCleanseTag; otherwise writetext Route5CleanseTagHouseGrannyText1, promptbutton, verbosegiveitem CLEANSE_TAG, iffalse .NoRoom, setevent EVENT_GOT_CLEANSE_TAG, then the "you are protected now" line. Bag-full drops straight to .NoRoom without setting the flag, so a bot must have a free pocket slot or repeat the talk.

Items

item	how obtained	source (label / bg_event / hidden)	one-time flag
CLEANSE_TAG	talk to ROUTE5CLEANSETAGHOUSE_GRANNY at 2,5	Route5CleanseTagHouseGrannyScript, verbosegiveitem CLEANSE_TAG	EVENT_GOT_CLEANSE_TAG (constants/event_flags.asm:218)

---

MAP_ROUTE_5_UNDERGROUND_PATH_ENTRANCE

• Script: maps/Route5UndergroundPathEntrance.asm
• Header: data/maps/maps.asm:501 -> map Route5UndergroundPathEntrance, TILESET_GATE, GATE, LANDMARK_ROUTE_5, MUSIC_ROUTE_3, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:465 -> map_const ROUTE_5_UNDERGROUND_PATH_ENTRANCE, 4, 4 (group 25, id 13)

Warps

idx	x	y	destination map	dest warp
1	3	7	ROUTE_5	1
2	4	7	ROUTE_5	1
3	4	3	UNDERGROUND_PATH	1

Only reachable once the Route 5 Pokefan is gone. Listed here because the walkthrough calls him out; nothing in this section actually enters it.

---

MAP_CERULEAN_CITY

• Script: maps/CeruleanCity.asm
• Blocks: maps/CeruleanCity.blk
• Header: data/maps/maps.asm:221 -> map CeruleanCity, TILESET_KANTO, TOWN, LANDMARK_CERULEAN_CITY, MUSIC_VIRIDIAN_CITY, FALSE, PALETTE_AUTO, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:203 -> map_const CERULEAN_CITY, 20, 18 (group CERULEAN = 7, id 17)
• Connections (data/maps/attributes.asm:360): north ROUTE_24 (+6), south ROUTE_5 (+5), west ROUTE_4 (+5), east ROUTE_9 (+9)
• Fly / spawn: data/maps/spawn_points.asm:17 spawn CERULEAN_CITY, 19, 22; data/maps/flypoints.asm:21 db LANDMARK_CERULEAN_CITY, SPAWN_CERULEAN

Warps

idx	x	y	destination map	dest warp
1	7	15	CERULEAN_GYM_BADGE_SPEECH_HOUSE	1
2	28	17	CERULEAN_POLICE_STATION	1
3	13	19	CERULEAN_TRADE_SPEECH_HOUSE	1
4	19	21	CERULEAN_POKECENTER_1F	1
5	30	23	CERULEAN_GYM	1
6	25	29	CERULEAN_MART	2

Coord events - none.

BG events

x	y	type	script/item
23	23	BGEVENT_READ	CeruleanCitySign
27	25	BGEVENT_READ	CeruleanGymSign
11	29	BGEVENT_READ	CeruleanBikeShopSign ("The BIKE SHOP has moved to GOLDENROD")
25	17	BGEVENT_READ	CeruleanPoliceSign
23	7	BGEVENT_READ	CeruleanCapeSign
14	29	BGEVENT_READ	CeruleanLockedDoor
20	21	BGEVENT_READ	CeruleanCityPokecenterSign
26	29	BGEVENT_READ	CeruleanCityMartSign
2	12	BGEVENT_ITEM	CeruleanCityHiddenBerserkGene -> hiddenitem BERSERK_GENE, EVENT_FOUND_BERSERK_GENE_IN_CERULEAN_CITY (pokegold.sym 4f:60ad)

Object events

const	sprite	x	y	movement	type	script label	event flag
CERULEANCITY_COOLTRAINER_M	SPRITE_COOLTRAINER_M	15	23	SPRITEMOVEDATA_WANDER (2,2)	OBJECTTYPE_SCRIPT	CeruleanCityCooltrainerMScript	-1
CERULEANCITY_SUPER_NERD	SPRITE_SUPER_NERD	23	15	SPRITEMOVEDATA_WANDER (1,1)	OBJECTTYPE_SCRIPT	CeruleanCitySuperNerdScript	-1
CERULEANCITY_SLOWPOKE	SPRITE_SLOWPOKE	20	24	SPRITEMOVEDATA_STILL	OBJECTTYPE_SCRIPT	CeruleanCitySlowbro	-1
CERULEANCITY_COOLTRAINER_F	SPRITE_COOLTRAINER_F	21	24	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_SCRIPT	CeruleanCityCooltrainerFScript	-1
CERULEANCITY_FISHER	SPRITE_FISHER	30	26	SPRITEMOVEDATA_WALK_LEFT_RIGHT (1,0)	OBJECTTYPE_SCRIPT	CeruleanCityFisherScript	-1
CERULEANCITY_YOUNGSTER	SPRITE_YOUNGSTER	6	12	SPRITEMOVEDATA_SPINRANDOM_SLOW (1,0)	OBJECTTYPE_SCRIPT	CeruleanCityYoungsterScript	-1

Scripts of interest

• CeruleanCityFlypointCallback - MAPCALLBACK_NEWMAP, setflag ENGINE_FLYPOINT_CERULEAN then endcallback. Simply entering the city registers the Fly destination the walkthrough relies on twice.
• CeruleanCityCooltrainerMScript - checkevent EVENT_RETURNED_MACHINE_PART; before the part is returned he is the hint "KANTO's POWER PLANT is toward the end of ROUTE 9".
• CeruleanCityFisherScript - checkevent EVENT_RETURNED_MACHINE_PART (iftrue -> generic line), else checkevent EVENT_MET_ROCKET_GRUNT_AT_CERULEAN_GYM -> "I saw this shady guy go off toward CERULEAN's CAPE", i.e. the pointer to Route 24/25.
• CeruleanCityYoungsterScript - after his first line, if EVENT_FOUND_BERSERK_GENE_IN_CERULEAN_CITY is clear he plays the ITEMFINDER ping loop (SFX_SECOND_PART_OF_ITEMFINDER / SFX_TRANSACTION x4) and showemote EMOTE_SHOCK. That is the in-game hint for the hidden BERSERK_GENE at 2,12.

Flags and events

constant	defined in	read/written by	meaning for a bot
ENGINE_FLYPOINT_CERULEAN	constants/engine_flags.asm:70	CeruleanCityFlypointCallback	Fly target unlocked on first entry
EVENT_MET_ROCKET_GRUNT_AT_CERULEAN_GYM	constants/event_flags.asm:202	set by CeruleanGymGruntRunsOutScript; read by CeruleanCityFisherScript	grunt cutscene has played
EVENT_RETURNED_MACHINE_PART	constants/event_flags.asm:200	set by PowerPlantManager; read here and in ~10 other maps	post-section state
EVENT_FOUND_BERSERK_GENE_IN_CERULEAN_CITY	constants/event_flags.asm:250	CeruleanCityHiddenBerserkGene, CeruleanCityYoungsterScript	hidden item consumed

Items

item	how obtained	source	one-time flag
BERSERK_GENE	face the tile and press A (hidden)	bg_event 2, 12, BGEVENT_ITEM, CeruleanCityHiddenBerserkGene	EVENT_FOUND_BERSERK_GENE_IN_CERULEAN_CITY

Wild encounters - no grass table. Water: data/wild/kanto_water.asm:131 def_water_wildmons CERULEAN_CITY, 4 percent: L10 GOLDEEN, L5 GOLDEEN, L10 SEAKING. Fishing group FISHGROUP_LAKE.

---

MAP_CERULEAN_GYM

• Script: maps/CeruleanGym.asm
• Blocks: maps/CeruleanGym.blk
• Header: data/maps/maps.asm:210 -> map CeruleanGym, TILESET_PORT, INDOOR, LANDMARK_CERULEAN_CITY, MUSIC_GYM, TRUE, PALETTE_DAY, FISHGROUP_SHORE (the data/maps/maps.asm:209 comment notes the known bug that you can fish in the gym pool)
• Dimensions: constants/map_constants.asm:192 -> map_const CERULEAN_GYM, 5, 8 (group 7, id 6)
• Scenes (def_scene_scripts, index order from macros/scripts/maps.asm def_scene_scripts/scene_const): SCENE_CERULEANGYM_NOOP = 0, SCENE_CERULEANGYM_GRUNT_RUNS_OUT = 1. Scene var: data/maps/scenes.asm:13 scene_var CERULEAN_GYM, wCeruleanGymSceneID.

Warps

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

Coord events - none. The grunt cutscene runs from the scene script (CeruleanGymGruntRunsOutScene -> sdefer CeruleanGymGruntRunsOutScript), which fires on map load while wCeruleanGymSceneID == SCENE_CERULEANGYM_GRUNT_RUNS_OUT, not from a tile.

BG events

x	y	type	script/item
3	8	BGEVENT_ITEM	CeruleanGymHiddenMachinePart -> hiddenitem MACHINE_PART, EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM (pokegold.sym 54:440e)
2	13	BGEVENT_READ	CeruleanGymStatue1
6	13	BGEVENT_READ	CeruleanGymStatue2

Object events

const	sprite	x	y	movement	type	script label	event flag
CERULEANGYM_ROCKET	SPRITE_ROCKET	4	10	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	ObjectEvent (inert; driven by the scene script)	EVENT_CERULEAN_GYM_ROCKET
CERULEANGYM_MISTY	SPRITE_MISTY	5	3	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	CeruleanGymMistyScript	EVENT_TRAINERS_IN_CERULEAN_GYM
CERULEANGYM_SWIMMER_GIRL1	SPRITE_SWIMMER_GIRL	4	6	SPRITEMOVEDATA_STANDING_RIGHT	OBJECTTYPE_TRAINER (sight 3)	TrainerSwimmerfDiana	EVENT_TRAINERS_IN_CERULEAN_GYM
CERULEANGYM_SWIMMER_GIRL2	SPRITE_SWIMMER_GIRL	1	9	SPRITEMOVEDATA_STANDING_RIGHT	OBJECTTYPE_TRAINER (sight 1)	TrainerSwimmerfBriana	EVENT_TRAINERS_IN_CERULEAN_GYM
CERULEANGYM_SWIMMER_GUY	SPRITE_SWIMMER_GUY	8	9	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_TRAINER (sight 3)	TrainerSwimmermParker	EVENT_TRAINERS_IN_CERULEAN_GYM
CERULEANGYM_GYM_GUIDE	SPRITE_GYM_GUIDE	7	13	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	CeruleanGymGuideScript	EVENT_TRAINERS_IN_CERULEAN_GYM

Scripts of interest

• CeruleanGymGruntRunsOutScript (pokegold.sym 54:4336) - the grunt runs down four big_step DOWN, playsound SFX_TACKLE, jumps into the player (CeruleanGymGruntRunsIntoYouMovement: fix_facing / set_sliding / jump_step UP), playmusic MUSIC_ROCKET_ENCOUNTER, three text boxes with a showemote EMOTE_SHOCK between them, then CeruleanGymGruntRunsOutMovement (big_step RIGHT, big_step DOWN), playsound SFX_EXIT_BUILDING, disappear CERULEANGYM_ROCKET. State changes, in order: setevent EVENT_MET_ROCKET_GRUNT_AT_CERULEAN_GYM, clearevent EVENT_ROUTE_24_ROCKET (spawns the grunt on Route 24), clearevent EVENT_ROUTE_25_MISTY_BOYFRIEND (spawns Misty + her date on Route 25), setscene SCENE_CERULEANGYM_NOOP, setmapscene ROUTE_25, SCENE_ROUTE25_MISTYS_DATE, setmapscene POWER_PLANT, SCENE_POWERPLANT_NOOP, then special RestartMapMusic and turnobject PLAYER, DOWN.
• CeruleanGymMistyScript (pokegold.sym 54:438a) - checkflag ENGINE_CASCADEBADGE, iftrue .FightDone; else MistyIntroText, winlosstext MistyWinLossText, 0, loadtrainer MISTY, MISTY1, startbattle, reloadmapafterbattle, then setevent EVENT_BEAT_MISTY and setevent EVENT_BEAT_SWIMMERF_DIANA, EVENT_BEAT_SWIMMERF_BRIANA, EVENT_BEAT_SWIMMERM_PARKER (beating Misty retroactively marks the three gym trainers beaten), ReceivedCascadeBadgeText, playsound SFX_GET_BADGE, setflag ENGINE_CASCADEBADGE.
• CeruleanGymStatue1 / CeruleanGymStatue2 - checkevent EVENT_TRAINERS_IN_CERULEAN_GYM; if false (trainers present) they fall through to the shared CeruleanGymStatue (jumpstd GymStatue1Script, or GymStatue2Script with gettrainername STRING_BUFFER_4, MISTY, MISTY1 once ENGINE_CASCADEBADGE is set). If true (gym empty) they print the "Sorry, I'll be out for a while - MISTY" / "Since MISTY's out, we'll be away too" notes.
• CeruleanGymGuideScript - checkevent EVENT_BEAT_MISTY for the post-win line.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_TRAINERS_IN_CERULEAN_GYM	constants/event_flags.asm:1297	set in engine/events/std_scripts.asm:550 (InitializeEventsScript); cleared by Route25MistyDate1Script / Route25MistyDate2Script	set = Misty, three Swimmers and the guide are all hidden. This is why the first gym visit is empty.
EVENT_CERULEAN_GYM_ROCKET	constants/event_flags.asm:1295	set at std_scripts.asm:547; cleared by PowerPlantManager (maps/PowerPlant.asm:146)	clear = grunt object exists so the scene can run
EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM	constants/event_flags.asm:251	set at std_scripts.asm:546; cleared by PowerPlantManager (maps/PowerPlant.asm:147)	set = the hidden item at 3,8 yields nothing. Talking to the MANAGER is what arms it.
EVENT_MET_ROCKET_GRUNT_AT_CERULEAN_GYM	constants/event_flags.asm:202	CeruleanGymGruntRunsOutScript	cutscene done
EVENT_BEAT_MISTY	constants/event_flags.asm:716	CeruleanGymMistyScript	gym cleared
ENGINE_CASCADEBADGE	constants/engine_flags.asm:48	CeruleanGymMistyScript checkflag / setflag	the badge itself
SCENE_CERULEANGYM_GRUNT_RUNS_OUT (= 1)	maps/CeruleanGym.asm:12 via scene_const	setmapscene at maps/PowerPlant.asm:148; cleared to SCENE_CERULEANGYM_NOOP at maps/CeruleanGym.asm:49	entering the gym with this scene id plays the grunt scene

Items

item	how obtained	source	one-time flag
MACHINE_PART	stand at the pool and press A into 3,8	bg_event 3, 8, BGEVENT_ITEM, CeruleanGymHiddenMachinePart	EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM (must be cleared first by the MANAGER)

Trainers

const	class	id	party (data/trainers/parties.asm)	script label	rematch/phone
SWIMMERF, BRIANA	SWIMMERF	19 (parties.asm:1885)	L35 SEAKING, L35 SEAKING	TrainerSwimmerfBriana	none
SWIMMERM, PARKER	SWIMMERM	21 (parties.asm:1775)	L32 HORSEA, L32 HORSEA, L35 SEADRA	TrainerSwimmermParker	none
SWIMMERF, DIANA	SWIMMERF	18 (parties.asm:1880)	L37 GOLDUCK	TrainerSwimmerfDiana	none
MISTY, MISTY1	MISTY	1 (parties.asm:281, TRAINERTYPE_MOVES)	L42 GOLDUCK (SURF, DISABLE, PSYCH_UP, PSYCHIC_M); L42 QUAGSIRE (SURF, AMNESIA, EARTHQUAKE, RAIN_DANCE); L44 LAPRAS (SURF, PERISH_SONG, BLIZZARD, RAIN_DANCE); L47 STARMIE (SURF, CONFUSE_RAY, RECOVER, ICE_BEAM)	CeruleanGymMistyScript	leader, no phone

Base rewards (data/trainers/attributes.asm): SWIMMERF 5, SWIMMERM 2, MISTY 25. Payout is ComputeTrainerReward (engine/battle/read_trainer_party.asm:300) = base x last mon level, added four times by the ld c, 4 loop in engine/battle/core.asm:2340, i.e. base x level x 4. That reproduces every number in the walkthrough (Misty 25 x 47 x 4 = 4700).

---

MAP_ROUTE_9

• Script: maps/Route9.asm
• Blocks: maps/Route9.blk
• Header: data/maps/maps.asm:217 -> map Route9, TILESET_KANTO, ROUTE, LANDMARK_ROUTE_9, MUSIC_ROUTE_3, FALSE, PALETTE_AUTO, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:199 -> map_const ROUTE_9, 30, 9 (group 7, id 13)
• Connections (data/maps/attributes.asm:366): south ROUTE_10_NORTH (+20), west CERULEAN_CITY (-9)

Warps

idx	x	y	destination map	dest warp
1	48	15	ROCK_TUNNEL_1F	1

Coord events - none.

BG events

x	y	type	script/item
15	7	BGEVENT_READ	Route9Sign
10	5	BGEVENT_ITEM	Route9HiddenEther -> hiddenitem ETHER, EVENT_ROUTE_9_HIDDEN_ETHER (pokegold.sym 50:407d)

Object events

const	sprite	x	y	movement	type	script label	event flag
ROUTE9_YOUNGSTER1	SPRITE_YOUNGSTER	23	11	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_TRAINER (sight 3)	TrainerCamperDean	-1
ROUTE9_LASS1	SPRITE_LASS	35	8	SPRITEMOVEDATA_STANDING_RIGHT	OBJECTTYPE_TRAINER (sight 2)	TrainerPicnickerHeidi	-1
ROUTE9_YOUNGSTER2	SPRITE_YOUNGSTER	11	2	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_TRAINER (sight 2)	TrainerCamperSid	-1
ROUTE9_LASS2	SPRITE_LASS	9	10	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_TRAINER (sight 1)	TrainerPicnickerEdna	-1
ROUTE9_POKEFAN_M1	SPRITE_POKEFAN_M	32	3	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_TRAINER (sight 4)	TrainerHikerTim	-1
ROUTE9_POKEFAN_M2	SPRITE_POKEFAN_M	33	15	SPRITEMOVEDATA_STANDING_RIGHT	OBJECTTYPE_TRAINER (sight 4)	TrainerHikerSidney	-1

Scripts of interest - all six are the plain trainer CLASS, ID, EVENT_BEAT_*, seen, beaten, 0, .Script form with an endifjustbattled + one after-battle text. No flags beyond EVENT_BEAT_*.

Items

item	how obtained	source	one-time flag
ETHER	hidden, face 10,5	bg_event 10, 5, BGEVENT_ITEM, Route9HiddenEther	EVENT_ROUTE_9_HIDDEN_ETHER (constants/event_flags.asm:242)

Trainers

const	class	id	party	script label	rematch/phone
PICNICKER, EDNA	PICNICKER	14 (parties.asm:2659)	L30 NIDORINA, L34 RAICHU	TrainerPicnickerEdna	none
CAMPER, SID	CAMPER	8 (parties.asm:2744)	L32 DUGTRIO, L29 PRIMEAPE, L29 POLIWRATH	TrainerCamperSid	none
CAMPER, DEAN	CAMPER	7 (parties.asm:2738)	L33 GOLDUCK, L31 SANDSLASH	TrainerCamperDean	none
HIKER, SIDNEY	HIKER	15 (parties.asm:2210)	L34 DUGTRIO, L32 ONIX	TrainerHikerSidney	none
HIKER, TIM	HIKER	13 (parties.asm:2197)	L31 GRAVELER x3	TrainerHikerTim	none
PICNICKER, HEIDI	PICNICKER	13 (parties.asm:2653)	L32 SKIPLOOM, L32 SKIPLOOM	TrainerPicnickerHeidi	none

Base rewards: PICNICKER 5, CAMPER 5, HIKER 8 (data/trainers/attributes.asm).

Wild encounters - data/wild/kanto_grass.asm:645 def_grass_wildmons ROUTE_9, 10/10/10 percent, version-split with IF DEF(_GOLD). Gold morn/day: L13 MANKEY, L15 RATTATA, L13 SPEAROW, L15 RATICATE, L15 FEAROW, L15 PRIMEAPE, L15 PRIMEAPE. Gold nite: L13 MANKEY, L15 RATTATA, L15 RATICATE, L13 RATTATA, L15 RATICATE, L15 PRIMEAPE, L15 PRIMEAPE. (Silver swaps MANKEY / PRIMEAPE for RATTATA / RATICATE, which is exactly the "Gold only" note in the walkthrough.) Water: data/wild/kanto_water.asm:19, 4 percent: L15 GOLDEEN, L10 GOLDEEN, L15 SEAKING. Fishing group FISHGROUP_LAKE. No treemon_maps.asm row, so no headbutt table.

---

MAP_ROUTE_10_NORTH

• Script: maps/Route10North.asm
• Blocks: maps/Route10North.blk
• Header: data/maps/maps.asm:218 -> map Route10North, TILESET_KANTO, ROUTE, LANDMARK_ROUTE_10, MUSIC_ROUTE_3, FALSE, PALETTE_AUTO, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:200 -> map_const ROUTE_10_NORTH, 10, 9 (group 7, id 14)
• Connections (data/maps/attributes.asm:389): north ROUTE_9 (-20), south ROUTE_10_SOUTH (0)

Warps

idx	x	y	destination map	dest warp
1	11	1	ROUTE_10_POKECENTER_1F	1
2	3	9	POWER_PLANT	1

Coord events - none.

BG events

x	y	type	script/item
5	11	BGEVENT_READ	PowerPlantSign ("KANTO POWER PLANT")
12	1	BGEVENT_READ	Route10PokecenterSign (jumpstd PokecenterSignScript)

Object events - def_object_events is empty. No trainers on this map.

Wild encounters - data/wild/kanto_grass.asm:700 def_grass_wildmons ROUTE_10_NORTH, 10/10/10 percent, no version split. morn: L16 SPEAROW, L17 VOLTORB, L16 RATICATE, L18 FEAROW, L16 QUAGSIRE, L15 ELECTABUZZ, L15 ELECTABUZZ. day: L16 SPEAROW, L17 VOLTORB, L17 RATICATE, L18 FEAROW, L15 ELECTABUZZ, L17 ELECTABUZZ, L17 ELECTABUZZ. nite: L16 QUAGSIRE, L17 VOLTORB, L16 RATICATE, L17 QUAGSIRE, L18 RATICATE, L15 ELECTABUZZ, L15 ELECTABUZZ. Water: data/wild/kanto_water.asm:26, 4 percent: L15 GOLDEEN, L10 GOLDEEN, L15 SEAKING. Fishing group FISHGROUP_LAKE.

---

MAP_POWER_PLANT

• Script: maps/PowerPlant.asm
• Blocks: maps/PowerPlant.blk
• Header: data/maps/maps.asm:214 -> map PowerPlant, TILESET_FACILITY, INDOOR, LANDMARK_POWER_PLANT, MUSIC_VIRIDIAN_CITY, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:196 -> map_const POWER_PLANT, 10, 9 (group 7, id 10)
• Scenes: SCENE_POWERPLANT_NOOP = 0, SCENE_POWERPLANT_GUARD_GETS_PHONE_CALL = 1 (maps/PowerPlant.asm:11-12); scene var data/maps/scenes.asm:12 scene_var POWER_PLANT, wPowerPlantSceneID

Warps

idx	x	y	destination map	dest warp
1	2	17	ROUTE_10_NORTH	2
2	3	17	ROUTE_10_NORTH	2

Coord events

scene	x	y	script label	effect
SCENE_POWERPLANT_GUARD_GETS_PHONE_CALL (1)	5	12	PowerPlantGuardPhoneScript	the "shady character in CERULEAN" cutscene; ends with setscene SCENE_POWERPLANT_NOOP

BG events

x	y	type	script/item
0	1	BGEVENT_READ	PowerPlantBookshelf (jumpstd DifficultBookshelfScript)
1	1	BGEVENT_READ	PowerPlantBookshelf

Object events

const	sprite	x	y	movement	type	script label	event flag
POWERPLANT_OFFICER1	SPRITE_OFFICER	4	14	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_SCRIPT	PowerPlantOfficerScript	-1
POWERPLANT_GYM_GUIDE1	SPRITE_GYM_GUIDE	2	9	SPRITEMOVEDATA_SPINRANDOM_SLOW	OBJECTTYPE_SCRIPT	PowerPlantGymGuide1Script	-1
POWERPLANT_GYM_GUIDE2	SPRITE_GYM_GUIDE	6	11	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_SCRIPT	PowerPlantGymGuide2Script	-1
POWERPLANT_OFFICER2	SPRITE_OFFICER	9	3	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_SCRIPT	PowerPlantOfficer2Script	-1
POWERPLANT_GYM_GUIDE3	SPRITE_GYM_GUIDE	7	2	SPRITEMOVEDATA_WALK_LEFT_RIGHT (1,0)	OBJECTTYPE_SCRIPT	PowerPlantGymGuide4Script	-1
POWERPLANT_MANAGER	SPRITE_FISHER	14	10	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_SCRIPT	PowerPlantManager	-1

(The object const list names the fifth guide POWERPLANT_GYM_GUIDE3 while its script is called PowerPlantGymGuide4Script; that mismatch is in the source, not a transcription slip.)

Scripts of interest

• PowerPlantManager (pokegold.sym 54:4dbd) - the spine of the whole section:
  1. checkevent EVENT_RETURNED_MACHINE_PART -> .ReturnedMachinePart
  2. checkitem MACHINE_PART -> .FoundMachinePart
  3. checkevent EVENT_MET_MANAGER_AT_POWER_PLANT -> .MetManager
  4. first talk: PowerPlantManagerWhoWouldRuinMyGeneratorText, then setevent EVENT_MET_MANAGER_AT_POWER_PLANT, clearevent EVENT_CERULEAN_GYM_ROCKET, clearevent EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM, setmapscene CERULEAN_GYM, SCENE_CERULEANGYM_GRUNT_RUNS_OUT, setscene SCENE_POWERPLANT_GUARD_GETS_PHONE_CALL.
  5. .FoundMachinePart (out of scope for this walkthrough section, listed because it is the payoff): takeitem MACHINE_PART, setevent EVENT_RETURNED_MACHINE_PART, clearevent EVENT_SAFFRON_TRAIN_STATION_POPULATION, setevent EVENT_ROUTE_5_6_POKEFAN_M_BLOCKS_UNDERGROUND_PATH, setevent EVENT_ROUTE_24_ROCKET, setevent EVENT_RESTORED_POWER_TO_KANTO, clearevent EVENT_GOLDENROD_TRAIN_STATION_GENTLEMAN, then verbosegiveitem TM_ZAP_CANNON guarded by EVENT_GOT_TM07_ZAP_CANNON.
• PowerPlantGuardPhoneScript - playsound SFX_CALL, showemote EMOTE_SHOCK on POWERPLANT_OFFICER1, applymovement POWERPLANT_OFFICER1 PowerPlantOfficer1ApproachGymGuide2Movement (RIGHT, RIGHT, UP, UP), two text boxes, then PowerPlantOfficer1ReturnToPostMovement (DOWN, DOWN, LEFT, LEFT, turn_head DOWN) and setscene SCENE_POWERPLANT_NOOP.
• The four flavour NPCs all branch only on EVENT_RETURNED_MACHINE_PART (PowerPlantOfficerScript additionally on EVENT_MET_MANAGER_AT_POWER_PLANT).

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_MET_MANAGER_AT_POWER_PLANT	constants/event_flags.asm:201	PowerPlantManager	gate for everything downstream
EVENT_CERULEAN_GYM_ROCKET	constants/event_flags.asm:1295	cleared by PowerPlantManager	grunt object now exists in the gym
EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM	constants/event_flags.asm:251	cleared by PowerPlantManager	the hidden item is now live
SCENE_POWERPLANT_GUARD_GETS_PHONE_CALL (1)	maps/PowerPlant.asm:12	setscene, then the 5,12 coord event	forces the exit cutscene once
EVENT_RETURNED_MACHINE_PART / EVENT_RESTORED_POWER_TO_KANTO	constants/event_flags.asm:200 / :204	.FoundMachinePart	later-section state (Magnet Train, Underground Path, roaming beasts checks in maps/Route26.asm etc.)
EVENT_GOT_TM07_ZAP_CANNON	constants/event_flags.asm:222	.ReturnedMachinePart	TM07 reward

Items - TM_ZAP_CANNON from the MANAGER, but only on the return trip, which the walkthrough section does not cover.

Trainers / wild encounters - none.

---

MAP_ROUTE_24

• Script: maps/Route24.asm
• Blocks: maps/Route24.blk
• Header: data/maps/maps.asm:219 -> map Route24, TILESET_KANTO, ROUTE, LANDMARK_ROUTE_24, MUSIC_ROUTE_3, FALSE, PALETTE_AUTO, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:201 -> map_const ROUTE_24, 10, 9 (group 7, id 15)
• Connections (data/maps/attributes.asm:370): north ROUTE_25 (0), south CERULEAN_CITY (-6)

Warps - def_warp_events is empty. Coord events - empty. BG events - empty.

Object events

const	sprite	x	y	movement	type	script label	event flag
ROUTE24_ROCKET	SPRITE_ROCKET	8	7	SPRITEMOVEDATA_SPINRANDOM_SLOW	OBJECTTYPE_SCRIPT	Route24RocketScript	EVENT_ROUTE_24_ROCKET

Scripts of interest

• Route24RocketScript (pokegold.sym 50:4407) - faceplayer, playmusic MUSIC_ROCKET_ENCOUNTER, Route24RocketSeenText, winlosstext Route24RocketBeatenText, -1, loadtrainer GRUNTM, GRUNTM_31, startbattle, dontrestartmapmusic, reloadmapafterbattle, then Route24RocketAfterBattleText (the "MACHINE PART ... hide it I did in GYM of the CERULEAN ... Inside water put it I did" hint), special FadeOutMusic, Route24RocketDisappearsText, special FadeOutToBlack, special ReloadSpritesNoPalettes, disappear ROUTE24_ROCKET, pause 25, special FadeInFromBlack, playmapmusic. Note: he is talked to, not a sight-line trainer, and there is no EVENT_BEAT_* - disappear sets EVENT_ROUTE_24_ROCKET and that is the only record of the win.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_ROUTE_24_ROCKET	constants/event_flags.asm:1294	set at engine/events/std_scripts.asm:548; cleared by CeruleanGymGruntRunsOutScript; set again by disappear and by PowerPlantManager:165	clear = grunt is standing on the bridge at 8,7

Trainers

const	class	id	party	script label	rematch/phone
GRUNTM, GRUNTM_31	GRUNTM	31 (data/trainers/parties.asm:1340)	L30 GOLBAT	Route24RocketScript	none

Wild encounters - data/wild/kanto_grass.asm:1061 def_grass_wildmons ROUTE_24, 10/10/10 percent. morn: L8 BELLSPROUT, L10 BELLSPROUT, L9 ABRA, L12 WEEPINBELL, L8 VENONAT, L14 WEEPINBELL, L14 WEEPINBELL. day: L8 BELLSPROUT, L10 SUNKERN, L9 ABRA, L12 WEEPINBELL, L10 BELLSPROUT, L14 WEEPINBELL, L14 WEEPINBELL. nite: L8 VENONAT, L10 ODDISH, L9 ABRA, L13 WEEPINBELL, L10 BELLSPROUT, L10 VENOMOTH, L10 VENOMOTH. Water: data/wild/kanto_water.asm:75, 4 percent: L10 GOLDEEN, L5 GOLDEEN, L10 SEAKING.

---

MAP_ROUTE_25

• Script: maps/Route25.asm
• Blocks: maps/Route25.blk
• Header: data/maps/maps.asm:220 -> map Route25, TILESET_KANTO, ROUTE, LANDMARK_ROUTE_25, MUSIC_ROUTE_3, FALSE, PALETTE_AUTO, FISHGROUP_LAKE
• Dimensions: constants/map_constants.asm:202 -> map_const ROUTE_25, 30, 9 (group 7, id 16)
• Connections (data/maps/attributes.asm:374): south ROUTE_24 (0). No other connection - the route is a dead end at Bill's house.
• Scenes: SCENE_ROUTE25_NOOP = 0, SCENE_ROUTE25_MISTYS_DATE = 1 (maps/Route25.asm:16-17); scene var data/maps/scenes.asm:14

Warps

idx	x	y	destination map	dest warp
1	47	5	BILLS_HOUSE	1

Coord events

scene	x	y	script label	effect
SCENE_ROUTE25_MISTYS_DATE (1)	42	6	Route25MistyDate1Script (pokegold.sym 50:4781)	the date cutscene, upper approach
SCENE_ROUTE25_MISTYS_DATE (1)	42	7	Route25MistyDate2Script	same cutscene, lower approach

BG events

x	y	type	script/item
45	5	BGEVENT_READ	BillsHouseSign ("SEA COTTAGE / BILL'S HOUSE")
4	5	BGEVENT_ITEM	Route25HiddenPotion -> hiddenitem POTION, EVENT_ROUTE_25_HIDDEN_POTION (pokegold.sym 50:48c6)

Object events

const	sprite	x	y	movement	type	script label	event flag
ROUTE25_MISTY	SPRITE_MISTY	46	9	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_SCRIPT	ObjectEvent (inert)	EVENT_ROUTE_25_MISTY_BOYFRIEND
ROUTE25_COOLTRAINER_M1	SPRITE_COOLTRAINER_M	46	10	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_SCRIPT	ObjectEvent (inert)	EVENT_ROUTE_25_MISTY_BOYFRIEND
ROUTE25_YOUNGSTER1	SPRITE_YOUNGSTER	12	8	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_TRAINER (sight 3)	TrainerSchoolboyDudley	-1
ROUTE25_LASS1	SPRITE_LASS	16	11	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_TRAINER (sight 3)	TrainerLassEllen	-1
ROUTE25_YOUNGSTER2	SPRITE_YOUNGSTER	21	8	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_TRAINER (sight 1)	TrainerSchoolboyJoe	-1
ROUTE25_LASS2	SPRITE_LASS	22	6	SPRITEMOVEDATA_STANDING_RIGHT	OBJECTTYPE_TRAINER (sight 3)	TrainerLassLaura	-1
ROUTE25_YOUNGSTER3	SPRITE_YOUNGSTER	25	4	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_TRAINER (sight 2)	TrainerCamperLloyd	-1
ROUTE25_LASS3	SPRITE_LASS	28	11	SPRITEMOVEDATA_STANDING_UP	OBJECTTYPE_TRAINER (sight 1)	TrainerLassShannon	-1
ROUTE25_SUPER_NERD	SPRITE_SUPER_NERD	31	7	SPRITEMOVEDATA_STANDING_DOWN	OBJECTTYPE_TRAINER (sight 1)	TrainerSupernerdPat	-1
ROUTE25_COOLTRAINER_M2	SPRITE_COOLTRAINER_M	37	8	SPRITEMOVEDATA_STANDING_LEFT	OBJECTTYPE_SCRIPT	TrainerCooltrainermKevin	-1
ROUTE25_POKE_BALL	SPRITE_POKE_BALL	32	4	SPRITEMOVEDATA_STILL	OBJECTTYPE_ITEMBALL	Route25Protein (itemball PROTEIN, pokegold.sym 50:48c4)	EVENT_ROUTE_25_PROTEIN

Scripts of interest

• Route25MistyDate1Script / Route25MistyDate2Script - identical except for the approach movement. showemote EMOTE_HEART on Misty, pause 30, showemote EMOTE_SHOCK on the boyfriend, applymovement ROUTE25_COOLTRAINER_M1 (one or two big_step DOWN), disappear ROUTE25_COOLTRAINER_M1, playmusic MUSIC_BEAUTY_ENCOUNTER, Misty walks over (Route25MistyApproachesPlayerMovement1 = UP,UP,UP,LEFT,LEFT,LEFT; variant 2 drops one UP), writetext Route25MistyDateText (the "pest" speech that ends with "Come to CERULEAN GYM"), Misty leaves via Route25MistyLeavesMovement (LEFT x5), disappear ROUTE25_MISTY, clearevent EVENT_TRAINERS_IN_CERULEAN_GYM, setscene SCENE_ROUTE25_NOOP, special RestartMapMusic.
• TrainerCooltrainermKevin - not a trainer macro; a hand-written script. checkevent EVENT_BEAT_COOLTRAINERM_KEVIN -> after-battle text; checkevent EVENT_CLEARED_NUGGET_BRIDGE -> skip the prize; otherwise CooltrainermKevinNuggetText, verbosegiveitem NUGGET, iffalse .NoRoomForNugget, setevent EVENT_CLEARED_NUGGET_BRIDGE, then winlosstext CooltrainermKevinBeatenText, 0, loadtrainer COOLTRAINERM, KEVIN, startbattle, reloadmapafterbattle, setevent EVENT_BEAT_COOLTRAINERM_KEVIN. A full bag at the Nugget step aborts before the battle.
• The six "six-pack" trainers are plain trainer macros with EVENT_BEAT_* flags only.

Flags and events

constant	defined in	read/written by	meaning for a bot
EVENT_ROUTE_25_MISTY_BOYFRIEND	constants/event_flags.asm:1296	set at engine/events/std_scripts.asm:549; cleared by CeruleanGymGruntRunsOutScript	clear = the pair are standing at 46,9 / 46,10
SCENE_ROUTE25_MISTYS_DATE (1)	maps/Route25.asm:17	setmapscene from maps/CeruleanGym.asm:50	arms the two coord events
EVENT_TRAINERS_IN_CERULEAN_GYM	constants/event_flags.asm:1297	cleared here	the gym becomes populated
EVENT_CLEARED_NUGGET_BRIDGE	constants/event_flags.asm:215	TrainerCooltrainermKevin	Nugget already handed over
EVENT_BEAT_COOLTRAINERM_KEVIN	constants/event_flags.asm:873	TrainerCooltrainermKevin	Kevin battle done
EVENT_ROUTE_25_HIDDEN_POTION	constants/event_flags.asm:248	Route25HiddenPotion	hidden Potion taken
EVENT_ROUTE_25_PROTEIN	constants/event_flags.asm:1326	item ball object row	Protein ball taken

Items

item	how obtained	source	one-time flag
POTION	hidden, face 4,5	bg_event 4, 5, BGEVENT_ITEM, Route25HiddenPotion	EVENT_ROUTE_25_HIDDEN_POTION
NUGGET	talk to Kevin at 37,8	TrainerCooltrainermKevin, verbosegiveitem NUGGET	EVENT_CLEARED_NUGGET_BRIDGE
PROTEIN	item ball at 32,4	object_event ... OBJECTTYPE_ITEMBALL, 0, Route25Protein	EVENT_ROUTE_25_PROTEIN

Trainers

const	class	id	party	script label	rematch/phone
SCHOOLBOY, DUDLEY	SCHOOLBOY	7 (parties.asm:448)	L35 ODDISH	TrainerSchoolboyDudley	none
LASS, ELLEN	LASS	11 (parties.asm:703)	L30 WIGGLYTUFF, L34 GRANBULL	TrainerLassEllen	none
SCHOOLBOY, JOE	SCHOOLBOY	8 (parties.asm:453)	L33 TANGELA, L33 VAPOREON	TrainerSchoolboyJoe	none
LASS, LAURA	LASS	7 (parties.asm:676)	L28 GLOOM, L31 PIDGEOTTO, L31 BELLOSSOM	TrainerLassLaura	none
CAMPER, LLOYD	CAMPER	6 (parties.asm:2733)	L34 NIDOKING	TrainerCamperLloyd	none
LASS, SHANNON	LASS	8 (parties.asm:683)	L29 PARAS, L29 PARAS, L32 PARASECT	TrainerLassShannon	none
SUPER_NERD, PAT	SUPER_NERD	8 (parties.asm:2009)	L36 PORYGON	TrainerSupernerdPat	none
COOLTRAINERM, KEVIN	COOLTRAINERM	17 (parties.asm:847)	L38 RHYHORN, L35 CHARMELEON, L35 WARTORTLE	TrainerCooltrainermKevin	none

Base rewards: SCHOOLBOY 8, LASS 6, CAMPER 5, SUPER_NERD 8, COOLTRAINERM 12.

Wild encounters - data/wild/kanto_grass.asm:1089 def_grass_wildmons ROUTE_25, 10/10/10 percent. morn: L8 PIDGEY, L10 BELLSPROUT, L8 VENONAT, L9 ABRA, L10 PIDGEOTTO, L14 WEEPINBELL, L14 WEEPINBELL. day: L8 PIDGEY, L10 BELLSPROUT, L10 PIDGEY, L9 ABRA, L12 PIDGEOTTO, L14 WEEPINBELL, L14 WEEPINBELL. nite: L8 VENONAT, L10 ODDISH, L10 VENOMOTH, L9 ABRA, L14 WEEPINBELL, L10 BELLSPROUT, L10 BELLSPROUT. Water: data/wild/kanto_water.asm:82, 4 percent: L10 GOLDEEN, L5 GOLDEEN, L10 SEAKING.

---

MAP_BILLS_HOUSE

• Script: maps/BillsHouse.asm
• Blocks: shared, data/maps/blocks.asm:163 (BillsHouse_Blocks)
• Header: data/maps/maps.asm:215 -> map BillsHouse, TILESET_HOUSE, INDOOR, LANDMARK_ROUTE_25, MUSIC_VIRIDIAN_CITY, FALSE, PALETTE_DAY, FISHGROUP_SHORE
• Dimensions: constants/map_constants.asm:197 -> map_const BILLS_HOUSE, 4, 4 (group 7, id 11)

Warps

idx	x	y	destination map	dest warp
1	2	7	ROUTE_25	1
2	3	7	ROUTE_25	1

Coord events - none. BG events - none.

Object events

const	sprite	x	y	movement	type	script label	event flag
BILLSHOUSE_GRAMPS	SPRITE_GRAMPS	2	3	SPRITEMOVEDATA_STANDING_UP (radius 0,2)	OBJECTTYPE_SCRIPT	BillsGrandpa (pokegold.sym 54:547c)	-1

Scripts of interest

• BillsGrandpa - a five-step chain, each step gated on the previous. Order in the asm:
  1. LICKITUNG -> EVENT_SHOWED_LICKITUNG_TO_BILLS_GRANDPA -> verbosegiveitem EVERSTONE (EVENT_GOT_EVERSTONE_FROM_BILLS_GRANDPA)
  2. ODDISH -> EVENT_SHOWED_ODDISH_TO_BILLS_GRANDPA -> verbosegiveitem LEAF_STONE (EVENT_GOT_LEAF_STONE_FROM_BILLS_GRANDPA)
  3. STARYU -> EVENT_SHOWED_STARYU_TO_BILLS_GRANDPA -> verbosegiveitem WATER_STONE (EVENT_GOT_WATER_STONE_FROM_BILLS_GRANDPA)
  4. GROWLITHE (Gold) / VULPIX (Silver, selected by checkver / iftrue .AskVulpix) -> EVENT_SHOWED_GROWLITHE_VULPIX_TO_BILLS_GRANDPA -> verbosegiveitem FIRE_STONE (EVENT_GOT_FIRE_STONE_FROM_BILLS_GRANDPA)
  5. PICHU -> EVENT_SHOWED_PICHU_TO_BILLS_GRANDPA -> verbosegiveitem THUNDERSTONE (EVENT_GOT_THUNDERSTONE_FROM_BILLS_GRANDPA, which also ends the chain) Mechanics: writetext ... AskToSeeMonText, yesorno, scall .ExcitedToSee, special BillsGrandfather (party pick; iffalse = cancelled), ifnotequal <SPECIES>, .WrongPokemon. EVENT_TEMPORARY_UNTIL_MAP_RELOAD_1 (constants/event_flags.asm:5) is set after each successful hand-over, so he only accepts one mon per visit - a bot must leave and re-enter the house between stones.
• First talk sets EVENT_MET_BILLS_GRANDPA (constants/event_flags.asm:457).

Items

item	how obtained	source	one-time flag
EVERSTONE	show LICKITUNG	BillsGrandpa	EVENT_GOT_EVERSTONE_FROM_BILLS_GRANDPA
LEAF_STONE	show ODDISH	BillsGrandpa	EVENT_GOT_LEAF_STONE_FROM_BILLS_GRANDPA
WATER_STONE	show STARYU	BillsGrandpa	EVENT_GOT_WATER_STONE_FROM_BILLS_GRANDPA
FIRE_STONE	show GROWLITHE (Gold) / VULPIX (Silver)	BillsGrandpa	EVENT_GOT_FIRE_STONE_FROM_BILLS_GRANDPA
THUNDERSTONE	show PICHU	BillsGrandpa	EVENT_GOT_THUNDERSTONE_FROM_BILLS_GRANDPA (:467)

3. Blockers and gates

Gate	Enforced by (file:label)	Requirement	Unlock condition
Cut tree at the Route 9 west entrance (and the tree above Super Nerd Pat on Route 25)	engine/events/overworld.asm:117 CutFunction -> .CheckAble (ld de, ENGINE_HIVEBADGE / CheckBadge, then CheckMapForSomethingToCut -> engine/overworld/tile_events.asm:76 CheckCutCollision). The trees themselves are block data in maps/Route9.blk / maps/Route25.blk, not object events.	HIVEBADGE + a party mon with CUT	already held (Johto badge 2)
Surfing the Route 9 / Route 10 river to reach the Power Plant door at 3,9	engine/events/overworld.asm:322 SurfFunction .TrySurf (ld de, ENGINE_FOGBADGE / CheckBadge, then GetTilePermission == WATER_TILE); the overworld A-press path is engine/events/overworld.asm:469 TrySurfOW with the same ENGINE_FOGBADGE CheckEngineFlag	FOGBADGE + SURF	already held (Johto badge 6)
"Fly back to Cerulean City"	engine/events/overworld.asm:529 FlyFunction (ld de, ENGINE_STORMBADGE at :545), destination row data/maps/flypoints.asm:21	STORMBADGE + FLY + ENGINE_FLYPOINT_CERULEAN set by CeruleanCityFlypointCallback	flypoint flag set on first entry to Cerulean
Cerulean Gym is empty on the first visit	maps/CeruleanGym.asm:379-383 object rows all carry EVENT_TRAINERS_IN_CERULEAN_GYM, set at engine/events/std_scripts.asm:550	-	clearevent in Route25MistyDate1Script / Route25MistyDate2Script (maps/Route25.asm:48 / :74)
Rocket grunt does not exist in the gym	maps/CeruleanGym.asm:378 object row EVENT_CERULEAN_GYM_ROCKET, set at std_scripts.asm:547; the scene is SCENE_CERULEANGYM_NOOP by default	-	first talk to PowerPlantManager (clearevent + setmapscene CERULEAN_GYM, SCENE_CERULEANGYM_GRUNT_RUNS_OUT, maps/PowerPlant.asm:146-148)
Rocket grunt does not exist on Route 24	maps/Route24.asm:129 object row EVENT_ROUTE_24_ROCKET, set at std_scripts.asm:548	-	clearevent in CeruleanGymGruntRunsOutScript (maps/CeruleanGym.asm:47)
Misty + date do not exist on Route 25, and the two coord events are inert	maps/Route25.asm:445-446 object rows EVENT_ROUTE_25_MISTY_BOYFRIEND; coord rows require SCENE_ROUTE25_MISTYS_DATE	-	clearevent + setmapscene ROUTE_25, SCENE_ROUTE25_MISTYS_DATE in CeruleanGymGruntRunsOutScript (maps/CeruleanGym.asm:48, :50)
Hidden MACHINE_PART at Cerulean Gym 3,8 yields nothing	maps/CeruleanGym.asm:373 -> CeruleanGymHiddenMachinePart, flag set at std_scripts.asm:546	-	clearevent EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM in PowerPlantManager (maps/PowerPlant.asm:147)
Route 5 Underground Path door at 17,15 physically blocked	maps/Route5.asm:56 NPC standing on 17,16	-	setevent EVENT_ROUTE_5_6_POKEFAN_M_BLOCKS_UNDERGROUND_PATH in PowerPlantManager .FoundMachinePart (maps/PowerPlant.asm:164) - i.e. after this section
Bill's grandpa gives one stone per visit	maps/BillsHouse.asm .JustShowedSomething on EVENT_TEMPORARY_UNTIL_MAP_RELOAD_1	-	leave and re-enter the map

4. Bot checklist

Ordered, machine-actionable. (g,m) is (map group, map id) from constants/map_constants.asm.

1. ROUTE_5_SAFFRON_GATE (25,14): walk onto warp 1/2 (4,0 / 5,0) -> ROUTE_5. Pre: none. Post: none.
2. ROUTE_5 (25,1): optional - walk to warp 4 (10,11), enter ROUTE_5_CLEANSE_TAG_HOUSE (25,15), talk to ROUTE5CLEANSETAGHOUSE_GRANNY at 2,5. Pre: EVENT_GOT_CLEANSE_TAG clear + free bag slot. Post: EVENT_GOT_CLEANSE_TAG set, CLEANSE_TAG in bag. Exit via warp 1/2 (2,7/3,7).
3. ROUTE_5: walk north across the connection into CERULEAN_CITY (7,17). Post: ENGINE_FLYPOINT_CERULEAN set by MAPCALLBACK_NEWMAP.
4. CERULEAN_CITY: optional - face 2,12 and press A for BERSERK_GENE. Pre: EVENT_FOUND_BERSERK_GENE_IN_CERULEAN_CITY clear.
5. CERULEAN_CITY: heal at warp 4 (19,21, CERULEAN_POKECENTER_1F). Optional but the walkthrough does it twice.
6. CERULEAN_CITY: warp 5 (30,23) -> CERULEAN_GYM (7,6). Expect an empty room (EVENT_TRAINERS_IN_CERULEAN_GYM set). Read 2,13 / 6,13 for the two notes. Exit via 4,15/5,15.
7. CERULEAN_CITY: exit east into ROUTE_9 (7,13). Pre: HIVEBADGE + CUT for the entrance tree.
8. ROUTE_9: battle in walkthrough order - TrainerPicnickerEdna (9,10), TrainerCamperSid (11,2), TrainerCamperDean (23,11), TrainerHikerSidney (33,15), TrainerHikerTim (32,3), TrainerPicnickerHeidi (35,8). Post: EVENT_BEAT_* per trainer. Optional hidden ETHER at 10,5.
9. ROUTE_9: cross the south connection into ROUTE_10_NORTH (7,14). Optional heal at warp 1 (11,1).
10. ROUTE_10_NORTH: Surf (pre: FOGBADGE + SURF) down the river and step onto warp 2 (3,9) -> POWER_PLANT (7,10).
11. POWER_PLANT: walk to POWERPLANT_MANAGER at 14,10 and talk. Pre: EVENT_MET_MANAGER_AT_POWER_PLANT clear. Post: EVENT_MET_MANAGER_AT_POWER_PLANT set, EVENT_CERULEAN_GYM_ROCKET cleared, EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM cleared, CERULEAN_GYM scene = 1, POWER_PLANT scene = 1.
12. POWER_PLANT: walk over 5,12 on the way to the exit. Post: PowerPlantGuardPhoneScript runs, POWER_PLANT scene back to 0. Then exit via warp 1/2 (2,17/3,17).
13. FLY to CERULEAN_CITY (SPAWN_CERULEAN = 19,22). Pre: STORMBADGE + FLY + ENGINE_FLYPOINT_CERULEAN.
14. CERULEAN_CITY: warp 5 -> CERULEAN_GYM. On load the scene script fires; hold through the movement/text (four A presses: intro, big-mistake, bye, plus the emote pauses). Post: EVENT_MET_ROCKET_GRUNT_AT_CERULEAN_GYM set, EVENT_ROUTE_24_ROCKET cleared, EVENT_ROUTE_25_MISTY_BOYFRIEND cleared, ROUTE_25 scene = 1, CERULEAN_GYM scene = 0.
15. CERULEAN_CITY: exit north into ROUTE_24 (7,15). Talk to ROUTE24_ROCKET at 8,7. Battle GRUNTM, GRUNTM_31 (L30 GOLBAT). Post: disappear sets EVENT_ROUTE_24_ROCKET.
16. ROUTE_24: north connection into ROUTE_25 (7,16).
17. ROUTE_25: optional hidden POTION - face 4,5, press A. Pre: EVENT_ROUTE_25_HIDDEN_POTION clear.
18. ROUTE_25: battle TrainerSchoolboyDudley (12,8), TrainerLassEllen (16,11), TrainerSchoolboyJoe (21,8), TrainerLassLaura (22,6), TrainerCamperLloyd (25,4), TrainerLassShannon (28,11), TrainerSupernerdPat (31,7).
19. ROUTE_25: talk to ROUTE25_COOLTRAINER_M2 at 37,8. Pre: free bag slot. Post: NUGGET, EVENT_CLEARED_NUGGET_BRIDGE, then battle COOLTRAINERM, KEVIN and EVENT_BEAT_COOLTRAINERM_KEVIN.
20. ROUTE_25: CUT the tree, walk onto the item ball at 32,4 for PROTEIN. Post: EVENT_ROUTE_25_PROTEIN.
21. ROUTE_25: walk east onto 42,6 (or 42,7). Pre: ROUTE_25 scene = SCENE_ROUTE25_MISTYS_DATE. Post: date cutscene, EVENT_TRAINERS_IN_CERULEAN_GYM cleared, ROUTE_25 scene = 0.
22. ROUTE_25: warp 1 (47,5) -> BILLS_HOUSE (7,11). Talk to BILLSHOUSE_GRAMPS at 2,3. One stone per map load; loop enter/talk/exit until the wanted stones are collected. Post: EVENT_MET_BILLS_GRANDPA, then the EVENT_GOT_*_FROM_BILLS_GRANDPA chain.
23. FLY to CERULEAN_CITY, heal at warp 4, then warp 5 -> CERULEAN_GYM.
24. CERULEAN_GYM: battle TrainerSwimmerfBriana (1,9), then face 3,8 and press A for MACHINE_PART. Pre: EVENT_FOUND_MACHINE_PART_IN_CERULEAN_GYM clear + free bag slot. Post: flag set, MACHINE_PART in bag.
25. CERULEAN_GYM: battle TrainerSwimmermParker (8,9), TrainerSwimmerfDiana (4,6).
26. CERULEAN_GYM: talk to CERULEANGYM_MISTY at 5,3. Pre: ENGINE_CASCADEBADGE clear. Post: EVENT_BEAT_MISTY, EVENT_BEAT_SWIMMERF_DIANA, EVENT_BEAT_SWIMMERF_BRIANA, EVENT_BEAT_SWIMMERM_PARKER, ENGINE_CASCADEBADGE set, +4700 money.

Follow-up (next section): carry MACHINE_PART back to POWERPLANT_MANAGER at 14,10 to set EVENT_RETURNED_MACHINE_PART / EVENT_RESTORED_POWER_TO_KANTO and collect TM07 ZAP CANNON.

5. Port coverage

Beat	Port file	Status
Kanto map headers, warps, coord/bg/object event tables extracted from ROM	src/import/RomExtractorGen2.lua (OBJECTTYPE_ITEMBALL, OBJECTTYPE_TRAINER = 1, 2 at :71; branch at :2960-2968)	implemented - generic, all map groups, nothing Kanto-specific needed
Coord-event trip-wires (Power Plant 5,12, Route 25 42,6/42,7) with the scene id filter	src/world/gen2/World.lua:5006 World:tryCoordScript	implemented
Scene scripts on map load + sdefer (CeruleanGymGruntRunsOutScene)	src/world/gen2/World.lua World:trySceneScript; src/script/gen2/Vm.lua:92	partial - sdefer is run immediately rather than queued until the map settles (comment at Vm.lua:93 says so). Cosmetic ordering risk on the gym grunt scene.
setscene / setmapscene / checkmapscene	src/script/gen2/Vm.lua:274, :279, :284	implemented, including the 0xff "no scene var" sentinel
checkevent / setevent / clearevent and checkflag / setflag (ENGINE_CASCADEBADGE, ENGINE_FLYPOINT_CERULEAN)	src/script/gen2/Vm.lua:198-229, engineFlags store at :1661	implemented - generic id-keyed stores, no per-flag work needed
Hidden items (BGEVENT_ITEM): MACHINE_PART, ETHER, POTION, BERSERK_GENE	src/world/gen2/HiddenItems.lua	implemented (the header notes this was previously unreachable because World:bgEventAt only answered BGEVENT_READ)
Item ball (Route25Protein)	src/import/RomExtractorGen2.lua:2968 (OBJECTTYPE_ITEMBALL)	implemented
Trainer sight lines / OBJECTTYPE_TRAINER sight radius	src/world/gen2/Trainers.lua:98 Trainers.sees	implemented
loadtrainer / startbattle / winlosstext / reloadmapafterbattle / dontrestartmapmusic / endifjustbattled	src/script/gen2/Vm.lua	implemented
Prize money = base x level x 4 (Misty 4700G etc.)	src/battle/gen2/Prize.lua:12 (documents the ld c, 4 loop), Prize.reward at :82	implemented, incl. Amulet Coin and Mom's savings split
CUT gate on HIVEBADGE + cut-tree collision	src/world/gen2/FieldMoves.lua:440 badgeGate / :452; src/world/gen2/Permissions.lua:130 CUT_TREE, :152 CheckCutCollision set	implemented
SURF gate on FOGBADGE	src/world/gen2/FieldMoves.lua:482	implemented
FLY gate on STORMBADGE + flypoint table	src/world/gen2/FieldMoves.lua:342 FieldMoves.FLYPOINTS, :501; src/world/gen2/World.lua:4284 (_FlyMap)	implemented
special BillsGrandfather (party pick for the stone chain)	src/script/gen2/Specials.lua:1267	implemented
special FadeOutMusic / FadeOutToBlack / FadeInFromBlack / ReloadSpritesNoPalettes / RestartMapMusic (Route 24 grunt exit, gym grunt scene)	src/script/gen2/Specials.lua:999, :1001, :1025, :1059, :1066	implemented
showemote, applymovement (incl. big_step, jump_step, fix_facing, set_sliding, slow_step), turnobject, disappear/appear	src/script/gen2/Vm.lua, src/script/gen2/Movement.lua	implemented
Kanto Gen 2 wild tables (kanto_grass/kanto_water, Gold/Silver split on Route 9)	extracted by src/import/RomExtractorGen2.lua; consumed by src/battle/gen2/Encounter.lua	implemented - version split comes from the ROM, so it is correct by construction
End-to-end driver coverage for this stretch	tests/drivers/gold_*.lua (25 drivers: boot, walk, warp, trainer, battle, roamers, ice path, etc.)	missing - no Kanto / Cerulean / Power Plant driver exists

6. Unresolved / verify by hand

• Cut tree positions. The walkthrough says "Cut the tree at the entrance" (Route 9) and "Cut the tree above Pat" (Route 25). Cut trees are block data in maps/Route9.blk / maps/Route25.blk, not events, so no coordinate for them appears anywhere in the asm text. A bot needs the decoded block map (or the port's Permissions.isCutTree over the loaded collision) to find them. The Protein ball at 32,4 sitting two cells above Pat at 31,7 is consistent with the walkthrough's claim, but the tree cell itself is unverified here.
• Kevin's battle is omitted from the walkthrough. The text says only "that guy will give you a Nugget". TrainerCooltrainermKevin gives the NUGGET and then immediately battles you with L38 RHYHORN / L35 CHARMELEON / L35 WARTORTLE. Treat the walkthrough as incomplete here, not the asm.
• Wild lists are abridged in the walkthrough. Route 24 also has VENONAT / SUNKERN / ODDISH / VENOMOTH, and Route 25 also has PIDGEY / PIDGEOTTO / VENONAT / WEEPINBELL / ODDISH / VENOMOTH, none of which the FAQ lists. Route 5's own table (PIDGEY / BELLSPROUT / ABRA / ODDISH / GLOOM) is not listed at all.
• "Surf down the river ... and you'll be at the Power Plant." The Power Plant door is warp_event 3, 9 on ROUTE_10_NORTH, and the water table for both ROUTE_9 and ROUTE_10_NORTH exists, so surfing is clearly the route - but the exact water path across the Route 9 / Route 10 North connection boundary is block data and was not traced.
• EXP values. Every per-mon EXP number in the walkthrough (e.g. "Level 42 Golduck (1566 EXP)") depends on the player's own level and participation; nothing in data/trainers/parties.asm carries them. Money values were all reproduced from data/trainers/attributes.asm base reward x last-mon level x 4 and check out.
• "the 11th gym badge". The asm has no badge counter tied to this; ENGINE_CASCADEBADGE is just one bit in constants/engine_flags.asm:48. The ordinal is walkthrough prose.
• Route 5 "Day Care Center from Red, Blue and Yellow". The building is ROUTE_5_CLEANSE_TAG_HOUSE and its sign at 10,11 reads "House for Sale... Nobody lives here." Nothing in Gen 2 calls it a Day Care; that identification is the FAQ's own history note. Also note the sign and the door share the tile 10,11, so an A-press there may hit either depending on facing - worth verifying against the port's bg-event-vs-warp priority.
• POWERPLANT_GYM_GUIDE3 / PowerPlantGymGuide4Script naming mismatch in maps/PowerPlant.asm (there is no PowerPlantGymGuide3Script). Harmless, but a label-driven bot should not assume the const and script numbers line up.