Phase 7 section

Pokemon FireRed and LeafGreen Cinnabar Island and Pokemon Mansion Walkthrough

Cinnabar Island and Pokemon Mansion section for the FireRed and LeafGreen walkthrough with source-backed wild Pokemon, trainers, items, hidden items, bosses, and route notes.

By Damodar Sharma Updated June 24, 2026 Walkthrough

Reach Cinnabar, revive fossils, use Pokemon Mansion switches, find the Secret Key, and prepare for Blaine. This page is a standalone section for Phase 7: Volcano Badge + First Sevii Trip, with FireRed/LeafGreen source data for encounters, trainers, items, hidden items, and boss routing.

Source maps

Cinnabar Island, Cinnabar Island Mart, Cinnabar Island Pokemon Center 1F, Cinnabar Island Pokemon Lab Entrance, Cinnabar Island Pokemon Lab Lounge, Cinnabar Island Pokemon Lab Research Room, Cinnabar Island Pokemon Lab Experiment Room, Pokemon Mansion 1F, Pokemon Mansion 2F, Pokemon Mansion 3F, and Pokemon Mansion B1F.

Wild rows63 Trainers7 Items15

Route plan

Mansion switches open and close statue-gated routes. Drop through the correct holes to reach B1F and the Secret Key.

Route Notes

  • Old Amber revives into Aerodactyl. Helix and Dome Fossils revive into Omanyte or Kabuto.

Wild Pokemon

Version

Each area below has its own table, split by encounter method. Standard wild rows merge every slot for a species into one line with a combined rate, and FireRed/LeafGreen exclusives are marked with FR/LG game chips; there is no time-of-day split in these remakes. Underlying slot odds: grass and cave 20/20/10/10/10/10/5/5/4/4/1/1; Surf and Rock Smash 60/30/5/4/1; Old Rod 70/30; Good Rod 60/20/20; Super Rod 40/40/15/4/1. Gift, static, trade, and prize Pokemon keep their own labeled rows.

Cinnabar Island

Cinnabar Island wild Pokemon by method, games, levels, encounter rates, and requirements
PokémonGamesLevelsRateNotes
Surfing
Tentacool FireRed and LeafGreen sprite Tentacool FRLG5-40100%
Fishing — Old Rod
Magikarp FireRed and LeafGreen sprite Magikarp FRLG5100%
Fishing — Good Rod
Horsea FireRed and LeafGreen sprite Horsea FRLG5-1560%
Krabby FireRed and LeafGreen sprite Krabby FRLG5-1560%
Horsea FireRed and LeafGreen sprite Horsea FRLG5-1520%
Krabby FireRed and LeafGreen sprite Krabby FRLG5-1520%
Magikarp FireRed and LeafGreen sprite Magikarp FRLG5-1520%
Fishing — Super Rod
Horsea FireRed and LeafGreen sprite Horsea FRLG15-2540%
Krabby FireRed and LeafGreen sprite Krabby FRLG15-2540%
Shellder FireRed and LeafGreen sprite Shellder FRLG15-2540%
Staryu FireRed and LeafGreen sprite Staryu FRLG15-2540%
Gyarados FireRed and LeafGreen sprite Gyarados FRLG15-2515%
Seadra FireRed and LeafGreen sprite Seadra FRLG25-354%
Slowbro FireRed and LeafGreen sprite Slowbro FRLG25-354%
Psyduck FireRed and LeafGreen sprite Psyduck FRLG25-351%
Slowpoke FireRed and LeafGreen sprite Slowpoke FRLG25-351%

Cinnabar Island Pokemon Lab Experiment Room

Cinnabar Island Pokemon Lab Experiment Room wild Pokemon by method, games, levels, encounter rates, and requirements
PokémonGamesLevelsRateNotes
Gift Pokémon
Aerodactyl FireRed and LeafGreen sprite Aerodactyl FRLG5GiftReceive from Cinnabar Island Pokemon Lab Experiment Room.
Kabuto FireRed and LeafGreen sprite Kabuto FRLG5GiftReceive from Cinnabar Island Pokemon Lab Experiment Room.
Omanyte FireRed and LeafGreen sprite Omanyte FRLG5GiftReceive from Cinnabar Island Pokemon Lab Experiment Room.
In-game trade
Seel FireRed and LeafGreen sprite Seel FRLGTrade levelTradeTrade Ponyta.

Cinnabar Island Pokemon Lab Lounge

Cinnabar Island Pokemon Lab Lounge wild Pokemon by method, games, levels, encounter rates, and requirements
PokémonGamesLevelsRateNotes
In-game trade
Electrode FireRed and LeafGreen sprite Electrode FRLGTrade levelTradeTrade Raichu.
Tangela FireRed and LeafGreen sprite Tangela FRLGTrade levelTradeTrade Venonat; received Pokemon may hold Stardust.

Pokemon Mansion 1F

Pokemon Mansion 1F wild Pokemon by method, games, levels, encounter rates, and requirements
PokémonGamesLevelsRateNotes
Grass / cave floor
Grimer FireRed and LeafGreen sprite Grimer FRLG28 or 3030%
Koffing FireRed and LeafGreen sprite Koffing FRLG28 or 3030%
Raticate FireRed and LeafGreen sprite Raticate FRLG32 or 3630%
Growlithe FireRed and LeafGreen sprite Growlithe FRLG30 or 3215%
Rattata FireRed and LeafGreen sprite Rattata FRLG26 or 2815%
Vulpix FireRed and LeafGreen sprite Vulpix FRLG30 or 3215%
Grimer FireRed and LeafGreen sprite Grimer FRLG285%
Koffing FireRed and LeafGreen sprite Koffing FRLG285%
Muk FireRed and LeafGreen sprite Muk FRLG325%
Weezing FireRed and LeafGreen sprite Weezing FRLG325%

Pokemon Mansion 2F

Pokemon Mansion 2F wild Pokemon by method, games, levels, encounter rates, and requirements
PokémonGamesLevelsRateNotes
Grass / cave floor
Grimer FireRed and LeafGreen sprite Grimer FRLG28 or 3030%
Koffing FireRed and LeafGreen sprite Koffing FRLG28 or 3030%
Raticate FireRed and LeafGreen sprite Raticate FRLG32 or 3630%
Growlithe FireRed and LeafGreen sprite Growlithe FRLG30 or 3215%
Rattata FireRed and LeafGreen sprite Rattata FRLG26 or 2815%
Vulpix FireRed and LeafGreen sprite Vulpix FRLG30 or 3215%
Grimer FireRed and LeafGreen sprite Grimer FRLG285%
Koffing FireRed and LeafGreen sprite Koffing FRLG285%
Muk FireRed and LeafGreen sprite Muk FRLG325%
Weezing FireRed and LeafGreen sprite Weezing FRLG325%

Pokemon Mansion 3F

Pokemon Mansion 3F wild Pokemon by method, games, levels, encounter rates, and requirements
PokémonGamesLevelsRateNotes
Grass / cave floor
Grimer FireRed and LeafGreen sprite Grimer FRLG28 or 3030%
Koffing FireRed and LeafGreen sprite Koffing FRLG28 or 3030%
Raticate FireRed and LeafGreen sprite Raticate FRLG32 or 3630%
Growlithe FireRed and LeafGreen sprite Growlithe FRLG30 or 3215%
Rattata FireRed and LeafGreen sprite Rattata FRLG26 or 2815%
Vulpix FireRed and LeafGreen sprite Vulpix FRLG30 or 3215%
Grimer FireRed and LeafGreen sprite Grimer FRLG285%
Koffing FireRed and LeafGreen sprite Koffing FRLG285%
Muk FireRed and LeafGreen sprite Muk FRLG325%
Weezing FireRed and LeafGreen sprite Weezing FRLG325%

Pokemon Mansion B1F

Pokemon Mansion B1F wild Pokemon by method, games, levels, encounter rates, and requirements
PokémonGamesLevelsRateNotes
Grass / cave floor
Grimer FireRed and LeafGreen sprite Grimer FRLG28 or 3030%
Koffing FireRed and LeafGreen sprite Koffing FRLG28 or 3030%
Raticate FireRed and LeafGreen sprite Raticate FRLG34 or 3830%
Growlithe FireRed and LeafGreen sprite Growlithe FRLG30 or 3215%
Vulpix FireRed and LeafGreen sprite Vulpix FRLG30 or 3215%
Ditto FireRed and LeafGreen sprite Ditto FRLG3010%
Grimer FireRed and LeafGreen sprite Grimer FRLG285%
Koffing FireRed and LeafGreen sprite Koffing FRLG285%
Muk FireRed and LeafGreen sprite Muk FRLG345%
Rattata FireRed and LeafGreen sprite Rattata FRLG265%
Weezing FireRed and LeafGreen sprite Weezing FRLG345%

Trainers

TrainerArea / positionTeamRewardNotes
Scientist Ted trainer spriteTedScientistPokemon Mansion 1F$1392One-time or scripted battle. Map tile (22, 24); sight 4.
Youngster Johnson trainer spriteJohnsonYoungsterPokemon Mansion 1F$544One-time or scripted battle. Map tile (8, 8); sight 1.
Burglar Arnie trainer spriteArnieBurglarPokemon Mansion 2F$2992One-time or scripted battle. Map tile (5, 23); sight 1.
Burglar Simon trainer spriteSimonBurglarPokemon Mansion 3F$3344One-time or scripted battle. Map tile (7, 13); sight 1.
Scientist Braydon trainer spriteBraydonScientistPokemon Mansion 3F$1584One-time or scripted battle. Map tile (22, 13); sight 1.
Burglar Lewis trainer spriteLewisBurglarPokemon Mansion B1F$2992One-time or scripted battle. Map tile (20, 25); sight 1.
Scientist Ivan trainer spriteIvanScientistPokemon Mansion B1F$1632One-time or scripted battle. Map tile (34, 13); sight 6.

Items And Hidden Items

ItemTypeArea / directionCoordinateRequirement
CarbosVisible item ballPokemon Mansion 1F: Visible item ball in Pokemon Mansion 1F; check around tile (29, 32).29, 32HIDE POKEMON MANSION 1F CARBOS
Escape RopeVisible item ballPokemon Mansion 1F: Visible item ball in Pokemon Mansion 1F; check around tile (22, 6).22, 6HIDE POKEMON MANSION 1F ESCAPE ROPE
Moon StoneHidden itemPokemon Mansion 1F: Hidden in Pokemon Mansion 1F; press A on the tile around (2, 21).2, 21Use the Itemfinder or check the described tile.
ProteinVisible item ballPokemon Mansion 1F: Visible item ball in Pokemon Mansion 1F; check around tile (27, 15).27, 15HIDE POKEMON MANSION 1F PROTEIN
CalciumVisible item ballPokemon Mansion 2F: Visible item ball in Pokemon Mansion 2F; check around tile (36, 8).36, 8HIDE POKEMON MANSION 2F CALCIUM
HP UpVisible item ballPokemon Mansion 2F: Visible item ball in Pokemon Mansion 2F; check around tile (35, 17).35, 17HIDE POKEMON MANSION 2F HP UP
ZincVisible item ballPokemon Mansion 2F: Visible item ball in Pokemon Mansion 2F; check around tile (18, 23).18, 23HIDE POKEMON MANSION 2F ZINC
IronVisible item ballPokemon Mansion 3F: Visible item ball in Pokemon Mansion 3F; check around tile (32, 6).32, 6HIDE POKEMON MANSION 3F IRON
Max PotionVisible item ballPokemon Mansion 3F: Visible item ball in Pokemon Mansion 3F; check around tile (9, 19).9, 19HIDE POKEMON MANSION 3F MAX POTION
Rare CandyHidden itemPokemon Mansion 3F: Hidden in Pokemon Mansion 3F; press A on the tile around (36, 13).36, 13Use the Itemfinder or check the described tile.
ElixirHidden itemPokemon Mansion B1F: Hidden in Pokemon Mansion B1F; press A on the tile around (35, 5).35, 5Use the Itemfinder or check the described tile.
Full RestoreVisible item ballPokemon Mansion B1F: Visible item ball in Pokemon Mansion B1F; check around tile (2, 29).2, 29HIDE POKEMON MANSION B1F FULL RESTORE
Secret KeyVisible item ballPokemon Mansion B1F: Visible item ball in Pokemon Mansion B1F; check around tile (5, 7).5, 7HIDE POKEMON MANSION B1F SECRET KEY
TM14 BlizzardVisible item ballPokemon Mansion B1F: Visible item ball in Pokemon Mansion B1F; check around tile (23, 4).23, 4HIDE POKEMON MANSION B1F TM14
TM22 SolarbeamVisible item ballPokemon Mansion B1F: Visible item ball in Pokemon Mansion B1F; check around tile (6, 21).6, 21HIDE POKEMON MANSION B1F TM22

Boss Strategy

No major boss card is assigned to this section.

Completion Checklist

  • Clear the route plan for Cinnabar Island and Pokemon Mansion before moving to the next section.
  • Check the wild table for FireRed/LeafGreen version splits, rod methods, Surf, Rock Smash, static Pokemon, gifts, trades, and event-only rows when present.
  • Defeat or intentionally skip optional trainers; use VS Seeker notes where rematches are available.
  • Sweep visible and hidden item rows, including key items, HMs, TMs, berries, fossils, and scripted gifts.
  • Review boss cards and heal before any Rival, Gym Leader, Rocket Admin, Elite Four, Champion, or legendary encounter listed above.

Sources

  • pret/pokefirered: src/data/wild_encounters.json, src/data/trainers.h, src/data/trainer_parties.h, data/maps/*/map.json, data/maps/*/scripts.inc, data/scripts/item_ball_scripts.inc, and graphics/trainers/front_pics.
  • Encounter odds use the FR/LG slot rates: land 20/20/10/10/10/10/5/5/4/4/1/1, Surf and Rock Smash 60/30/5/4/1, Old Rod 70/30, Good Rod 60/20/20, and Super Rod 40/40/15/4/1.
  • Generation III mechanics apply throughout: abilities, natures, held items, double battles, and post-game National Dex data are active in these remakes.