Yellow Pokémon Mansion

The burned-out Cinnabar mansion hiding the Secret Key to Blaine's Gym, its journals telling of the experiments that created Mewtwo.

Pokémon Mansion is in Kanto. In the story you arrive from Cinnabar Island through its entrance and it comes before Route 21.

POKéMON MANSION MAP

The mansion plays as a shifting maze, its walls sliding to new positions as you trip the statue switches inside. Until the switches are set the right way, whole sections of the building stay closed off.

Yellow

Pokémon Mansion Walkthrough

11 trainers 1 in the steps 8 items 8 species

1F

1 TRAINER · NONE IN THE STEPS · 0 ITEMS · 4 SPECIES
1
Every statue in Pokemon Mansion flips one shared switch, so each press opens some gates and shuts others on all four floors.
  1. The basement stairs sit in a wing that only a 3F hole reaches.
  2. Head north up the west hall and climb to 2F.

2F

1 TRAINER · NONE IN THE STEPS · 1 ITEM · 4 SPECIES
2
You come back through this floor after the closed room upstairs, on your way to the north stairs.
  1. Leave the statue beside your landing alone, since pressing it walls off the north stairs.
  2. Take the stairs just east of your landing up to 3F.
Calcium

3F

2 TRAINERS · 1 IN THE STEPS · 2 ITEMS · 4 SPECIES
3
Those stairs end in a closed west room, while only the statue past the north stairs opens the hall to the holes.
  1. Battle the pacing Burglar for his lone Ninetales. Search the top of the west passage for a hidden Max Revive and take the southwest Max Potion.
  2. Go back down, east, north up the hall and west through the open gate to the top stairs.
  3. Walk east and south to the statue below the top hall and press it.
  4. Go through the gate it opened and east until the Scientist spots you, then drop through a western hole; the eastern one lands on 2F.
Highest-level fight · fight 1BurglarNinetalesLv 38₱3,420
Max Revive
Iron

1F

0 TRAINERS · 1 ITEM · 4 SPECIES
4
The western holes drop you into the sealed 1F wing that holds the stairs to B1F.
  1. Walk south until a Scientist spots you, then loop west around the wall.
  2. Follow the lower hall east, taking the Carbos, to the stairs down.
Carbos

B1F

2 TRAINERS · NONE IN THE STEPS · 4 ITEMS · 4 SPECIES
5
You need both basement statues: the south one opens the way north, the north one the gate to the west rooms.
  1. Go north, west and south through the open gate to take TM14 BlizzardTMTM14 BlizzardIceClassSpecialPower120Accuracy90%PP5An attack that may freeze the foe.WhereOn B1F of the Pokemon Mansion, battle the Burglar there, then press the statue beside it.
  2. Collect the Full Restore through the west gate it opened, then head north, east along the middle hall and up the east corridor until the Scientist spots you.
  3. Press the statue in the northeast room, then follow the long hall west and pick up the Rare CandyRare CandyITEM · VITAMINB1F of the Pokemon Mansion in the room above it.
  4. Through the gate it opened, collect TM22 Solar BeamTMTM22 Solar BeamGrassClassSpecialPower120Accuracy100%PP101st turn: Prepare 2nd turn: AttackWhereOn B1F of the Pokemon Mansion, take the Secret Key to the south, then search that room's top-left corner for a hidden Rare Candy.
  5. To leave, press the northeast statue again, loop back to press the south statue, then climb to 1F and take its southeast door to Cinnabar Island.
TM14 Blizzard
Rare Candy
TM22 Solar Beam
Rare Candy

Pokemon Encounters

At 20 percent, Growlithe is the easiest Fire-type you can land before Blaine's gym, with a clear path to Arcanine. The rest is a poison den of Grimer and Muk plus high-level Rattata and Raticate, and a stray Ditto at 10 percent.

Floor
Type
▾1F4
Walking4
#020Raticate
30% - Lv 34–37
#019Rattata
30% - Lv 34–37
#088Grimer
20% - Lv 23–26
#058Growlithe
20% - Lv 26–38
▾2F4
Walking4
#088Grimer
35% - Lv 26–35
#020Raticate
30% - Lv 37–40
#019Rattata
30% - Lv 37–40
#089Muk
5% - Lv 35–38
▾3F4
Walking4
#088Grimer
35% - Lv 32–38
#020Raticate
30% - Lv 40–43
#019Rattata
30% - Lv 40–43
#089Muk
5% - Lv 38–41
▾B1F4
Walking4
#088Grimer
40% - Lv 35–38
#020Raticate
40% - Lv 37–46
#132Ditto
10% - Lv 12–24
#089Muk
10% - Lv 41
Grimer
#088

Grimer

Poison
Evolves into Muk at Lv 38
Encounter rate
40% Common
Level
35–38
EV yield
1 HP
Here on Pokémon MansionB1Ftall grass40% spawn
1 in 3wild encounters
will be Grimer — about 1m of walking through grass to catch one.
Catch odds
~3m-4m
to catch one
Poke Ball25%
Great Ball48%
Ultra Ball34%
Nuzlocke
B
community tier
Score60
PickRisky
SourceDerived

Also found in 1 other location

ITEMS

The Secret Key hidden in the burned-out mansion unlocks Cinnabar's Gym, which makes the trip mandatory. TM14 Blizzard and TM22 SolarBeam are the prizes worth carrying out, alongside three vitamins and a couple of Rare Candies in the wreckage.

Source
Floor
TM2
TM14 Blizzard
B1F
TM22 Solar Beam
B1F
Vitamin5
Carbos
1F
Calcium
2F
Iron
3F
Rare Candy
B1F
Rare Candy
B1F
Item ball4
Escape Rope
1F
Max Potion
3F
Full Restore
B1F
Secret Key
B1F
Hidden1
Max Revive
3F
TM

TM14 Blizzard

Found on B1F · On B1F of the Pokemon Mansion
Move
BlizzardIceSpecial
Power
120
Accuracy
90%
PP
5

Blizzard deals damage and has a 10% chance of freezing the target.

TM2
TM

TM14 Blizzard

Found on B1F · On B1F of the Pokemon Mansion
Move
BlizzardIceSpecial
Power
120
Accuracy
90%
PP
5

Blizzard deals damage and has a 10% chance of freezing the target.

TM

TM22 Solar Beam

Found on B1F · On B1F of the Pokemon Mansion
Move
Solar BeamGrassSpecial
Power
120
Accuracy
100%
PP
10

The user of Solar Beam will absorb light on the first turn.

Vitamin5
VITAMIN

Carbos

Found on 1F · On 1F of the Pokemon Mansion on Cinnabar Island
Effect

Raises Speed effort and happiness.

VITAMIN

Calcium

Found on 2F · On 2F of the Pokemon Mansion on Cinnabar Island
Effect

Raises Special Attack effort and happiness.

VITAMIN

Iron

Found on 3F · On 3F of the Pokemon Mansion on Cinnabar Island
Effect

Raises Defense effort and happiness.

VITAMIN

Rare Candy

Found on B1F · On B1F of the Pokemon Mansion on Cinnabar Island
Effect

Causes a level-up and raises happiness.

VITAMIN

Rare Candy

Found on B1F · Hidden on B1F of the Pokemon Mansion
Effect

Causes a level-up and raises happiness.

Item ball4
ITEM BALL

Escape Rope

Found on 1F · On 1F of the Pokemon Mansion on Cinnabar Island
Effect

Transports user to the outside entrance of a cave.

ITEM BALL

Max Potion

Found on 3F · On 3F of the Pokemon Mansion on Cinnabar Island
Effect

Restores HP to full.

ITEM BALL

Full Restore

Found on B1F · On B1F of the Pokemon Mansion on Cinnabar Island
Effect

Restores HP to full and cures any status ailment and confusion.

ITEM BALL

Secret Key

Found on B1F · On B1F of the Pokemon Mansion, needed to unlock the Cinnabar Island Gym
Effect

Gen IV: The key to Rotom’s appliance room. Gen III: The key to Cinnabar Gym.

Hidden1
HIDDEN

Max Revive

Found on 3F · Hidden on 3F of the Pokemon Mansion
Effect

Revives with full HP.

TRAINERS

Burglars and Scientists hold the burned-out Cinnabar mansion, the Burglars' Fire-types the hottest thing inside at level 38. Scientists fill the gaps with weaker mixed teams.

Class
Scientist1
ScientistLv 33₱1,650
Burglar1
BurglarLv 34₱3,060
BURGLAR

Burglar

Party
2
Highest Lv
34
Reward
₱3,060
Party
Fire
Ability-NatureFixedItem-
Ember
Leer
Rage
Slash
Fire
Ability-NatureFixedItem-
Ember
Leer
Rage
Slash
Team weak to3 types
Type
2x weakness(3)
WATER
GROUND
ROCK
Win: ₱3,060
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