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.
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.
Grimer
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.
TM14 Blizzard
Blizzard deals damage and has a 10% chance of freezing the target.
TM14 Blizzard
Blizzard deals damage and has a 10% chance of freezing the target.
TM22 Solar Beam
The user of Solar Beam will absorb light on the first turn.
Carbos
Raises Speed effort and happiness.
Calcium
Raises Special Attack effort and happiness.
Iron
Raises Defense effort and happiness.
Rare Candy
Causes a level-up and raises happiness.
Rare Candy
Causes a level-up and raises happiness.
Escape Rope
Transports user to the outside entrance of a cave.
Max Potion
Restores HP to full.
Full Restore
Restores HP to full and cures any status ailment and confusion.
Secret Key
Gen IV: The key to Rotom’s appliance room. Gen III: The key to Cinnabar Gym.
Max Revive
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.














