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.
Sludge exposed to X rays from the moon transformed into GRIMER. It loves feeding on filthy things.
Appears in filthy areas. It thrives by sucking up polluted sludge that is pumped out of factories.
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 |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
 Dugtrio Ground | A | |
Available Moves Moves
Damage vs Grimer View Dugtrio builds →Earthquake 2x126-149%KO Dig 2x102-120%KO Sand Tomb 2x46-54% Mud-Slap 2x28-33% | ||
 Sandslash Ground | C | |
Available Moves Moves
Damage vs Grimer View Sandslash builds →Earthquake 2x126-149%KO Dig 2x102-120%KO Sand Tomb 2x46-54% | ||
 Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Grimer View Nidoqueen builds →Earthquake 2x118-139%KO Dig 2x95-112%KO | ||
 Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Grimer View Nidoking builds →Earthquake 2x128-151%KO Dig 2x103-122%KO | ||
 Rhydon GroundRock | C | |
Available Moves Moves
Damage vs Grimer View Rhydon builds →Earthquake 2x157-186%KO Dig 2x126-149%KO | ||
 Geodude RockGround | C | |
Available Moves Moves
Damage vs Grimer View Geodude builds →Earthquake 2x109-129%KO Dig 2x86-102%KO | ||
 Abra Psychic | C | |
 Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Earthquake 2x104-123%KO Dig 2x80-96% | ||
Geodude RockGround | C | |
Available Moves Moves
Damage vs Grimer View Geodude builds →Earthquake 2x109-129%KO Dig 2x86-102%KO | ||
Abra Psychic | C | |
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Earthquake 2x104-123%KO Dig 2x80-96% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Grimer View Dugtrio builds →Earthquake 2x121-144%KO Dig 2x100-118%KO Sand Tomb 2x46-54% Mud-Slap 2x27-32% | ||
 Onix RockGround | C | |
Available Moves Moves
Damage vs Grimer View Onix builds →Earthquake 2x70-83% Dig 2x56-67% | ||
Geodude RockGround | C | |
Available Moves Moves
Damage vs Grimer View Geodude builds →Earthquake 2x105-124%KO Dig 2x84-99% | ||
 Cubone Ground | D | |
Available Moves Moves
Damage vs Grimer View Cubone builds →Earthquake 2x76-89% Dig 2x60-70% Bone Club 2x48-57% Bonemerang 2x40-48% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Earthquake 2x100-118%KO Dig 2x81-96% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Grimer View Dugtrio builds →Earthquake 2x125-147%KO Dig 2x101-119%KO Sand Tomb 2x45-54% Mud-Slap 2x28-34% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Grimer View Onix builds →Earthquake 2x69-82% Dig 2x58-68% | ||
 Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Grimer View Rhyhorn builds →Earthquake 2x110-130%KO Dig 2x89-105%KO | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Grimer View Cubone builds →Earthquake 2x76-91% Dig 2x62-74% Bone Club 2x50-59% Bonemerang 2x41-48% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Earthquake 2x101-119%KO Dig 2x81-96% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Grimer View Dugtrio builds →Earthquake 2x125-147%KO Dig 2x101-119%KO Sand Tomb 2x45-54% Mud-Slap 2x28-34% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Grimer View Onix builds →Earthquake 2x69-82% Dig 2x58-68% | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Grimer View Rhyhorn builds →Earthquake 2x110-130%KO Dig 2x89-105%KO | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Grimer View Cubone builds →Earthquake 2x76-91% Dig 2x62-74% Bone Club 2x50-59% Bonemerang 2x41-48% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Earthquake 2x101-119%KO Dig 2x81-96% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Grimer View Dugtrio builds →Earthquake 2x122-144%KO Dig 2x97-115%KO Sand Tomb 2x43-51% Mud-Slap 2x26-31% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Grimer View Onix builds →Earthquake 2x66-78% Dig 2x54-64% | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Grimer View Rhyhorn builds →Earthquake 2x108-127%KO Dig 2x87-103%KO | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Grimer View Cubone builds →Earthquake 2x73-86% Dig 2x59-70% Bone Club 2x49-58% Bonemerang 2x38-45% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Earthquake 2x97-115%KO Dig 2x78-92% Sand Tomb 2x36-43% | ||
Dugtrio Ground | A | |
Available Moves Moves
Damage vs Grimer View Dugtrio builds →Earthquake 2x126-149%KO Dig 2x102-120%KO Sand Tomb 2x46-54% Mud-Slap 2x28-33% | ||
Onix RockGround | C | |
Available Moves Moves
Damage vs Grimer View Onix builds →Earthquake 2x69-81% Dig 2x55-66% | ||
Rhyhorn GroundRock | C | |
Available Moves Moves
Damage vs Grimer View Rhyhorn builds →Earthquake 2x112-132%KO Dig 2x88-105%KO | ||
Cubone Ground | D | |
Available Moves Moves
Damage vs Grimer View Cubone builds →Earthquake 2x75-89% Dig 2x61-72% Bone Club 2x49-58% Bonemerang 2x39-46% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Grimer View Sandshrew builds →Earthquake 2x100-118%KO Dig 2x80-95% Sand Tomb 2x36-43% | ||
In FireRed & LeafGreen, Flygon can KO Grimer with Earthquake (124-147%). Gardevoir's Psychic also KOs at 136-159%.
 Flygon GroundDragon | B | |
Recommended Build AbilityLevitate ItemLeftovers NatureImpish Moves
Damage vs Grimer View Flygon builds →Earthquake 2x124-147%KO Rock Slide31-37% | ||
 Medicham FightingPsychic | C | |
Recommended Build AbilityPure Power ItemSalacberry NatureJolly Moves
Damage vs Grimer View Medicham builds →Shadow Ball31-37% Rock Slide29-34% | ||
 Gardevoir PsychicFairy | C | |
Recommended Build AbilityTrace ItemLeftovers NatureTimid Moves
Damage vs Grimer View Gardevoir builds →Psychic 2x136-159%KO Thunderbolt45-53% | ||
FireRed & LeafGreen 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 22 breeding partners from the Indeterminate egg group. Pass egg moves like Curse, Explosion, Haze and 4 more to offspring.
FireRed & LeafGreen Grimer Best Moveset
Best Build
No build content available for this Pokemon in Gen 3.
Try selecting a different game/generation filter, or check back later.
Moves
Breeding opens up real options for Grimer. Curse and Explosion come exclusively from egg moves, and they're worth the effort. The rest of the kit covers basics through Sludge Bomb and Sludge and coverage across 8 types.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
FireRed & LeafGreen Grimer Locations
6 encounter spots for Grimer at high spawn rates starting from mid-game routes. Two different catch methods are in play here. Best and Earliest sort options below help narrow down your approach based on odds vs. Accessibility.
Best Locations to Catch Grimer in FireRed & LeafGreen
Before you go hunting for Grimer, check which of the 6 spots belong to your version. LeafGreen and FireRed each have different walking and fishing encounters at Lv. 28-40.
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 FireRed & LeafGreen, 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 FireRed & LeafGreen. 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