Stats & Training
HP and Attack carry most of Grimer's stat budget. Speed's the obvious dump stat. Common in the wild and yields 1 HP EV. Follows a medium-fast 1M XP curve.
As it moves, it loses bits of its body, from which new GRIMER emerge. This worsens the stench around it.
Wherever GRIMER has passed, so many germs are left behind that no plants will ever grow again.
Grimer Weakness
Grimer is weak to Ground and Psychic. 4 resistances help offset the weaknesses. Just 2 weak spots to worry about, which keeps teambuilding straightforward.
| Damage | Types |
|---|---|
| 2x (Weak) | Ground, Psychic |
| 0.5x (Resist) | Grass, Fighting, Poison, Bug |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
 Whiscash WaterGround | C | |
Available Moves Moves
Damage vs Grimer View Whiscash builds →Zen Headbutt 2x56-67% Mud-Slap 2x28-33% | ||
 Meditite FightingPsychic | D | |
Whiscash WaterGround | C | |
Available Moves Moves
Damage vs Grimer View Whiscash builds →Zen Headbutt 2x57-68% Mud Bomb 2x71-84% Mud-Slap 2x25-31% | ||
 Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Grimer View Bronzor builds →Extrasensory 2x44-53% Confusion 2x29-35% | ||
 Wooper WaterGround | D | |
Obtain MethodRuins Of Alph Surfing Available Moves Moves
Damage vs Grimer View Wooper builds →Mud Bomb 2x37-44% Mud Shot 2x32-40% | ||
 Spoink Psychic | D | |
 Drowzee Psychic | D | |
 Graveler RockGround | C | |
 Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Grimer View Bronzor builds →Extrasensory 2x40-48% Confusion 2x28-33% | ||
 Numel FireGround | D | |
 Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Dig 2x81-96% Sand Tomb 2x38-45% | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Grimer View Graveler builds →Earthquake 2x123-146%KO Dig 2x98-116%KO | ||
Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Grimer View Bronzor builds →Extrasensory 2x41-49% Confusion 2x27-32% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Grimer View Numel builds →Earth Power 2x85-100%KO Dig 2x71-84% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Dig 2x82-97% Sand Tomb 2x39-46% | ||
Graveler RockGround | C | |
Available Moves Moves
Damage vs Grimer View Graveler builds →Earthquake 2x118-139%KO Dig 2x96-114%KO | ||
Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Grimer View Bronzor builds →Extrasensory 2x40-47% Confusion 2x26-31% | ||
Numel FireGround | D | |
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Dig 2x80-94% Sand Tomb 2x37-44% | ||
 Gligar Ground | C | |
Graveler RockGround | C | |
Available Moves Moves
Damage vs Grimer View Graveler builds →Earthquake 2x121-143%KO Dig 2x97-114%KO | ||
Onix RockGround | C | |
Bronzor SteelPsychic | D | |
Available Moves Moves
Damage vs Grimer View Bronzor builds →Future Sight 2x58-69% Extrasensory 2x40-48% Confusion 2x26-31% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Grimer View Numel builds →Earth Power 2x83-98% Dig 2x68-81% | ||
In HeartGold & SoulSilver, Gliscor can KO Grimer with Earthquake (120-142%). Gardevoir's Psychic also KOs at 166-195%.
 Gliscor Ground | B | |
Recommended Build AbilityHypercutter ItemLeftovers NatureJolly Moves
Damage vs Grimer View Gliscor builds →Earthquake 2x120-142%KO Ice Fang26-31% | ||
 Celebi PsychicGrass | B | |
Recommended Build AbilityNatural Cure ItemLeftovers NatureBold Moves View Celebi builds →
| ||
 Gardevoir PsychicFairy | C | |
Recommended Build AbilityTrace ItemLeftovers NatureTimid Moves
Damage vs Grimer View Gardevoir builds →Psychic 2x166-195%KO Thunderbolt55-65% | ||
HeartGold & SoulSilver Evolution
One evolution ahead. Grimer grows into Muk through a straightforward two-stage chain. A decent partner pool for breeding via one egg group. Eggs are average hatch time. Evolving adds up to 175 stat points total. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Grimer easily with 31 breeding partners from the Indeterminate egg group. Pass egg moves like Curse, Explosion, Haze and 8 more to offspring.
HeartGold & SoulSilver Grimer Best Moveset
Best Build
No build content available for this Pokemon in Gen 4.
Try selecting a different game/generation filter, or check back later.
Moves
The TM pool is where it gets interesting. Coverage across 10 types means almost nothing walls Grimer cleanly, with Gunk Shot and Sludge Bomb anchoring the STAB side. Matchup flexibility isn't a problem.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Transfer Moves
HeartGold & SoulSilver Grimer Locations
Grimer is available from early-game routes onward at high spawn rates. 8 encounter spots give you plenty of options. Grab one early and it'll be ready to evolve or train by mid-game.
Best Locations to Catch Grimer in HeartGold & SoulSilver
8 walking and surfing encounters at Lv. 15-29 for Grimer across HeartGold and SoulSilver. A few locations are version-exclusive, so your copy of the game affects what's available.
Grimer Guide
Grimer has 2 evolution paths: Muk at level 38 and Alolan Muk at level 38. Different conditions, different results.
Grimer has 2 evolution paths: Muk at level 38 and Alolan Muk at level 38. Different method for each one.
For HeartGold & SoulSilver, you can run Grimer through the first few routes without issues. 325 BST won't carry you far though. Get it to Muk as fast as you can.
Grimer is catchable in HeartGold & SoulSilver. Check the Locations section above for specific routes, encounter rates, and methods. It also appears in 18 other games across the series.
Game Availability
Since debuting in Red & Blue, Grimer has appeared in 19 titles over 10 generations. Along the way, it received an Alolan form in Generation 7, keeping it relevant across different competitive metas.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RBDebut
Red & Blue - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3FRLG
FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 4DP
Diamond & Pearl - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7SMAlolan
Sun & Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves