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Phase 7 section

Pokemon Yellow Cinnabar Island and Pokemon Mansion Walkthrough

Cinnabar Island and Pokemon Mansion section for the Pokemon Yellow walkthrough with wild Pokemon, trainers, items, hidden items, coordinates, and boss strategy.

By Damodar Sharma Updated June 23, 2026 Walkthrough

Revive fossils, complete lab trades, explore Pokemon Mansion, and find the Secret Key. This page is a standalone section for Phase 7: Volcano Badge, with source-backed Yellow encounter, trainer, item, hidden item, and boss data.

Source maps

Cinnabar Island, Cinnabar Lab, Cinnabar Lab Trade Room, Cinnabar Lab Metronome Room, Cinnabar Lab Fossil Room, Pokemon Mansion 1F, Pokemon Mansion 2F, and Pokemon Mansion 3F, and 1 more map files.

Wild rows29 Trainers6 Items14

Route plan

Pokemon Mansion has Yellow-specific Rattata, Grimer, Muk, and Ditto encounter tables plus several valuable TMs. The Secret Key on B1F opens Blaine's Gym.

Wild Pokemon

Area / subarea Game Method Pokemon Level Odds Condition / requirement
Pokemon Mansion 1FYellowTall grass / cave floor Rattata Yellow sprite Rattata 34-3730%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 1FYellowTall grass / cave floor Raticate Yellow sprite Raticate 34-3730%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 1FYellowTall grass / cave floor Grimer Yellow sprite Grimer 23-2620%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 1FYellowTall grass / cave floor Growlithe Yellow sprite Growlithe 26-3820%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 2FYellowTall grass / cave floor Rattata Yellow sprite Rattata 37-4030%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 2FYellowTall grass / cave floor Raticate Yellow sprite Raticate 37-4030%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 2FYellowTall grass / cave floor Grimer Yellow sprite Grimer 26-3535%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 2FYellowTall grass / cave floor Muk Yellow sprite Muk 35-385.5%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 3FYellowTall grass / cave floor Rattata Yellow sprite Rattata 40-4330%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 3FYellowTall grass / cave floor Raticate Yellow sprite Raticate 40-4330%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 3FYellowTall grass / cave floor Grimer Yellow sprite Grimer 32-3835%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion 3FYellowTall grass / cave floor Muk Yellow sprite Muk 38-415.5%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion B1FYellowTall grass / cave floor Grimer Yellow sprite Grimer 35-3840%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion B1FYellowTall grass / cave floor Raticate Yellow sprite Raticate 37-4640%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion B1FYellowTall grass / cave floor Muk Yellow sprite Muk 419.8%Encounter rate 10; no time-of-day split in Yellow.
Pokemon Mansion B1FYellowTall grass / cave floor Ditto Yellow sprite Ditto 12-2411%Encounter rate 10; no time-of-day split in Yellow.
Cinnabar IslandYellowOld Rod Magikarp Yellow sprite Magikarp 5100%Any fishable water tile.
Cinnabar IslandYellowGood Rod Goldeen Yellow sprite Goldeen 1050%Any fishable water tile after getting Good Rod.
Cinnabar IslandYellowGood Rod Poliwag Yellow sprite Poliwag 1050%Any fishable water tile after getting Good Rod.
Cinnabar IslandYellowSuper Rod Staryu Yellow sprite Staryu 1525%Yellow Super Rod slot table.
Cinnabar IslandYellowSuper Rod Tentacool Yellow sprite Tentacool 1525%Yellow Super Rod slot table.
Cinnabar IslandYellowSuper Rod Staryu Yellow sprite Staryu 1025%Yellow Super Rod slot table.
Cinnabar IslandYellowSuper Rod Tentacool Yellow sprite Tentacool 3025%Yellow Super Rod slot table.
Cinnabar Lab Fossil RoomYellowFossil revival Aerodactyl Yellow sprite Aerodactyl 30Old AmberBring Old Amber from Pewter Museum to the Cinnabar Lab.
Cinnabar Lab Fossil RoomYellowFossil revival Kabuto Yellow sprite Kabuto 30Dome FossilRevive the Dome Fossil if you chose it in Mt. Moon.
Cinnabar Lab Fossil RoomYellowFossil revival Omanyte Yellow sprite Omanyte 30Helix FossilRevive the Helix Fossil if you chose it in Mt. Moon.
Cinnabar Lab Fossil RoomYellowIn-game trade Muk Yellow sprite Muk TradedGiftTrade Kangaskhan for Muk (STICKY). Fossil room trade; trade Kangaskhan for Muk.
Cinnabar Lab Trade RoomYellowIn-game trade Rhydon Yellow sprite Rhydon TradedGiftTrade Golduck for Rhydon (BUFFY). Trade room NPC; trade Golduck for Rhydon.
Cinnabar Lab Trade RoomYellowIn-game trade Dewgong Yellow sprite Dewgong TradedGiftTrade Growlithe for Dewgong (CEZANNE). Trade room NPC; trade Growlithe for Dewgong.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Pokemon Mansion 1F (17, 17)Scientist trainer spriteScientistParty #4
Electrode Yellow sprite Electrode Lv. 29 Weezing Yellow sprite Weezing Lv. 29
$1,450One-time trainer; no rematch in Yellow.
2. Pokemon Mansion 2F (3, 17)Burglar trainer spriteBurglarParty #7
Charmander Yellow sprite Charmander Lv. 34 Charmeleon Yellow sprite Charmeleon Lv. 34
$3,060One-time trainer; no rematch in Yellow.
3. Pokemon Mansion 3F (5, 11)Burglar trainer spriteBurglarParty #8
Ninetales Yellow sprite Ninetales Lv. 38
$3,420One-time trainer; no rematch in Yellow.
4. Pokemon Mansion 3F (20, 11)Scientist trainer spriteScientistParty #12
Magnemite Yellow sprite Magnemite Lv. 33 Magneton Yellow sprite Magneton Lv. 33 Voltorb Yellow sprite Voltorb Lv. 33
$1,650One-time trainer; no rematch in Yellow.
5. Pokemon Mansion B1F (16, 23)Burglar trainer spriteBurglarParty #9
Growlithe Yellow sprite Growlithe Lv. 34 Ponyta Yellow sprite Ponyta Lv. 34
$3,060One-time trainer; no rematch in Yellow.
6. Pokemon Mansion B1F (27, 11)Scientist trainer spriteScientistParty #13
Magnemite Yellow sprite Magnemite Lv. 34 Electrode Yellow sprite Electrode Lv. 34
$1,700One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
Escape RopeVisible item ballVisible item ball at (14, 3) in Pokemon Mansion 1F.(14, 3)Reach this tile; HMs or story flags may be needed for late-game dungeons.
CarbosVisible item ballVisible item ball at (18, 21) in Pokemon Mansion 1F.(18, 21)Reach this tile; HMs or story flags may be needed for late-game dungeons.
CalciumVisible item ballVisible item ball at (28, 7) in Pokemon Mansion 2F.(28, 7)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Max PotionVisible item ballVisible item ball at (1, 16) in Pokemon Mansion 3F.(1, 16)Reach this tile; HMs or story flags may be needed for late-game dungeons.
IronVisible item ballVisible item ball at (25, 5) in Pokemon Mansion 3F.(25, 5)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Rare CandyVisible item ballVisible item ball at (10, 2) in Pokemon Mansion B1F.(10, 2)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Full RestoreVisible item ballVisible item ball at (1, 22) in Pokemon Mansion B1F.(1, 22)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM14 BlizzardVisible item ballVisible item ball at (19, 25) in Pokemon Mansion B1F.(19, 25)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM22 SolarbeamVisible item ballVisible item ball at (5, 4) in Pokemon Mansion B1F.(5, 4)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Secret KeyVisible item ballVisible item ball at (5, 13) in Pokemon Mansion B1F.(5, 13)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Moon StoneHidden itemHidden on the searchable tile at (8, 16) in Pokemon Mansion 1F.(8, 16)Press A on the hidden tile or use the Itemfinder nearby.
Max ReviveHidden itemHidden on the searchable tile at (1, 9) in Pokemon Mansion 3F.(1, 9)Press A on the hidden tile or use the Itemfinder nearby.
Rare CandyHidden itemHidden on the searchable tile at (1, 9) in Pokemon Mansion B1F.(1, 9)Press A on the hidden tile or use the Itemfinder nearby.
TM35 MetronomeGiftTalk to the scientist in the Cinnabar Lab.-Talk to the scientist in the Cinnabar Lab.

Boss Strategy

No boss or Rival branch is attached to this section.

Completion Checklist

  • Revive fossils or Old Amber.
  • Collect Mansion TMs and hidden items.
  • Find the Secret Key.
  • Verify the Yellow encounter rows before leaving if you are filling the Pokedex.
  • Use the item rows as a visible-item and hidden-item sweep before moving to the next section.

Sources

  • pret/pokeyellow: wild encounters, trainer parties, trainer money, map object events, hidden event items, rods, trades, and prize Pokemon.
  • Encounter odds aggregate the Gen I ten-slot rates: 51/256, 51/256, 39/256, 25/256, 25/256, 25/256, 13/256, 13/256, 11/256, and 3/256.
  • Yellow has no day/night encounter column; tables use Game, Method, and Condition instead.

Related articles

Pokemon Yellow Walkthrough HubPhase 7: Volcano BadgePrevious: Seafoam Islands and Cinnabar RouteNext: Cinnabar Gym