#0088 | Grimer

Poison

Where to Find Grimer

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Generation 1

Red

Pokémon Mansion

Blue

Pokémon Mansion

Yellow

Pokémon Mansion, Power Plant

Generation 2

Gold

Routes 16, 17, and 18

Celadon City (Surfing)

Silver

Routes 16, 17, and 18

Celadon City (Surfing)

Crystal

Routes 16, 17, and 18

Celadon City (Surfing)

Generation 3

Ruby

Fiery Path

Sapphire

Fiery Path

Emerald

Fiery Path

Fire Red

Pokémon Mansion

Celadon City (Super Rod)

Leaf Green

Pokémon Mansion

Celadon City (Super Rod)

Generation 4

Diamond

Route 212 (Poké Radar)

Pearl

Route 212 (Poké Radar)

Platinum

Route 212 (Poké Radar)

Heart Gold

Routes 16, 17, and 18

Celadon City (Surfing)

Safari Zone (tall grass in Marshland, default (Morning & Day); Surfing in Marshland, default)

Soul Silver

Routes 16, 17, and 18

Celadon City (Surfing)

Safari Zone (tall grass in Marshland, default (Morning & Day); Surfing in Marshland, default)

Generation 5

Black

White

Black 2

Castelia Sewers (walking, surfing/fishingSpringSummer)

White 2

Castelia Sewers (walking, surfing/fishingSpringSummer)

Generation 6

Breed Muk

Omega Ruby

Fiery Path

Alpha Sapphire

Fiery Path

Generation 7

Sun

Trainers’ School, Hau’oli City, Malie City (Alolan Form)

Moon

Trainers’ School, Hau’oli City, Malie City (Alolan Form)

Ultra Sun

Trainers’ School, Hau’oli City, Malie City (Alolan Form)

Ultra Moon

Trainers’ School, Hau’oli City, Malie City (Alolan Form)

Let's Go Pikachu

Pokémon Mansion, Power Plant (Kantonian Form)

Trade Kantonian Grimer in Cinnabar Island (Alolan Form)

Let's Go Eevee

Generation 8

Sword

Shield

Brilliant Diamond

Route 212 (Poké Radar) (Kantonian Form)

Grand Underground – Swampy Cave, Dazzling Cave, Stargleam Cavern, Bogsunk Cavern (After obtaining the National Pokédex) (Kantonian Form)

Shining Pearl

Route 212 (Poké Radar) (Kantonian Form)

Grand Underground – Swampy Cave, Dazzling Cave, Stargleam Cavern, Bogsunk Cavern (After obtaining the National Pokédex) (Kantonian Form)

Legends Arceus

Generation 9

Scarlet

South Province: Cortondo (Kantonian Form)

East Province: Area Two (Kantonian Form)

West Province: Area Two (Kantonian Form)

Tera Raid Battles (2★) (Kantonian Form)

The Hidden Treasures of Area Zero DLC:

Coastal Biome, Torchlit Labyrinth (Alolan Form)

Tera Raid Battles (3★) (Alolan Form)

Violet

South Province: Cortondo (Kantonian Form)

East Province: Area Two (Kantonian Form)

West Province: Area Two (Kantonian Form)

Tera Raid Battles (2★) (Kantonian Form)

The Hidden Treasures of Area Zero DLC:

Coastal Biome, Torchlit Labyrinth (Alolan Form)

Tera Raid Battles (3★) (Alolan Form)

Grimer Evolution Tree

Level 38

Grimer Alternate Forms

Alolan Grimer

Poison Dark