
Is Grimer Good in Emerald Playthrough?
Fiery Path encounter. Grimer evolves into Muk at 38 with AbilityStench or AbilitySticky Hold. Poison-type with high HP and Special Defense. Doesn't threaten any of Emerald's bosses through type advantage. Tanky without a purpose.
Roxanne's typing presses Grimer's defenses.
Grimer trades roughly evenly with Brawly's team.
Grimer trades roughly evenly with Wattson's team.
Grimer trades roughly evenly with Flannery's team.
Grimer trades roughly evenly with Norman's team.
Grimer trades roughly evenly with Winona's team.
Tate & Liza's team hits Muk's weaknesses hard.
Muk has the type edge here and should clean up Juan's team.
Muk has the type edge here and should clean up Sidney's team.
Phoebe's team hits Muk's weaknesses hard.
Muk has the type edge here and should clean up Glacia's team.
Muk trades roughly evenly with Drake's team.
Muk trades roughly evenly with Wallace's team.
Catchable
Catch Grimer in Fiery Path (walking, Lv 14, rare).
Recommended Moves
- STARTING (Lv 14)
- LV 14PoisonSludgePower 98Accuracy 100%PP 20
- After Brawly
- TM35FireFlamethrowerPower 95Accuracy 100%PP 15Mauville Game Corner
- TM24ElectricThunderboltPower 95Accuracy 100%PP 15Gift from Wattson after clearing New Mauville
- After Norman
- TUTORNormalExplosionPower 250Accuracy 100%PP 5Pacifidlog Town
- TM38FireFire BlastPower 120Accuracy 85%PP 5Lilycove Department Store
- TM25ElectricThunderPower 120Accuracy 70%PP 10Lilycove Department Store
- LV 43PoisonSludge BombPower 135Accuracy 100%PP 10
- Post-Game
- TUTORNormalBody SlamPower 85Accuracy 100%PP 15Battle Frontier
- TUTORFireFire PunchPower 75Accuracy 100%PP 15Battle Frontier
- TUTORIceIce PunchPower 75Accuracy 100%PP 15Battle Frontier
- TUTORElectricThunder PunchPower 75Accuracy 100%PP 15Battle Frontier
Evolve Grimer to Muk
Grimer evolves into Muk at Level 38. Your Grimer should hit Level 38 before you reach Tate & Liza, at typical leveling pace.
Recommended Moves
- STARTING (Lv 38)
- LV 38PoisonSludgePower 98Accuracy 100%PP 20
- After Brawly
- TM35FireFlamethrowerPower 95Accuracy 100%PP 15Mauville Game Corner
- TM24ElectricThunderboltPower 95Accuracy 100%PP 15Gift from Wattson after clearing New Mauville
- After Norman
- TUTORNormalExplosionPower 250Accuracy 100%PP 5Pacifidlog Town
- TM01FightingFocus PunchPower 150Accuracy 100%PP 20Route 115
- TM15NormalHyper BeamPower 150Accuracy 90%PP 5Lilycove Department Store
- TM38FireFire BlastPower 120Accuracy 85%PP 5Lilycove Department Store
- LV 47PoisonSludge BombPower 135Accuracy 100%PP 10
- Post-Game
- TUTORNormalBody SlamPower 85Accuracy 100%PP 15Battle Frontier
- TUTORFireFire PunchPower 75Accuracy 100%PP 15Battle Frontier
- TUTORIceIce PunchPower 75Accuracy 100%PP 15Battle Frontier
- TUTORElectricThunder PunchPower 75Accuracy 100%PP 15Battle Frontier
How to Get Grimer in Emerald
Grimer barely registers in Emerald, a single rare spawn at level 14 in the Fiery Path. That one volcano tunnel is the entire wild presence, so expect a long wait for it.
Wild Grimer may be holding when caught:
1 location to catch Grimer
Encountered via tall grass encounters
Where To Catch Grimer in E
Step 1Grimer ✓
Step 2Evolve into MukBREEDINGAvailableLeave a compatible parent at the Pokemon Day Care to receive a Grimer egg.
To plan your throws, open the Emerald catch rate calculator with Grimer preloaded.
How to Get Shiny Grimer in Emerald
Grimer oozes through the smoky tunnel of Fiery Path, a rare find among the tougher residents; walk that heated floor over and over, resetting the sludge, and hold out for the odd coloration on the same long grind. Compare Shiny Grimer odds across every game
Emerald Shiny Grimer Calculator
2 MethodsBoth methods here share the same odds, about 1 in 8,192 on each try. Pick whichever fits how you play.
Full Odds: Walk through grass, surf, or fish. Every encounter is its own independent shiny roll.
Breeding: Hatch eggs of this line; each egg rolls at the base shiny rate (no Masuda before Gen IV).
How many you have done, or plan to do.
| Chance | Encounters | Time |
|---|---|---|
| 10%lucky few | 864-- | -- |
| 25%one in four | 2,357-- | -- |
| 50%coin flip | 5,678-- | -- |
| 90%very likely | 18,862-- | -- |
Time assumes -- at your pace and does not change your shiny odds.
How is this calculated?
Every encounter has the same shiny chance, the Shiny Odds Per Try shown above. Each one is a separate roll that does not care how many you have already done, so the more you hunt, the higher your overall chance of at least one shiny. The formula below turns your odds and your number of tries into that combined chance.
chance after N tries = 1 − (1 − p)^N, where p = 1 / odds per try
Example at 1 in 8,192 (classic full odds): about 864 encounters for a 10 percent chance, 5,678 for 50 percent, and 18,862 for 90 percent.
The table above flips that around: it shows how many encounters it takes to reach a 10, 25, 50, and 90 percent chance at your current odds. Turning on boosts like the Shiny Charm, sandwiches, or chains improves your odds, so the encounter numbers drop.
These are estimates, not promises. Most games have no pity counter, meaning no guaranteed shiny no matter how many you hunt, so even Very Likely is not guaranteed: some hunters find one early, others go well past that point.
For time estimates and charm math, open the Emerald shiny odds calculator with Grimer already selected.
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
What is Grimer Weak Against
AvgBest Pokemon Against Grimer
Kadabra Psychic | C | |
Graveler RockGround | C | |
Sandslash Ground | A | |
Kirlia Psychic | D | |
Solrock RockPsychic | C | |
Obtain MethodMeteor Falls Surfing | ||
Marshtomp WaterGround | C | |
Obtain MethodEvolve Mudkip (Route 101 Gift) | ||
Spoink Psychic | C | |
Trapinch Ground | C | |
Baltoy GroundPsychic | D | |
Available Moves Moves
Damage vs Grimer View Baltoy builds →Psychic 2x60-70% Dig 2x40-48% | ||
Numel FireGround | C | |
Nincada BugGround | C | |
Grimer Evolutions
One evolution ahead. Grimer grows into Muk through a straightforward two-stage chain. A decent partner pool for breeding via one egg group. Eggs take an average time to hatch. 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 Amorphous egg group. Pass egg moves like Curse, Explosion, Haze and 4 more to offspring.
E Grimer Best Moveset
Poison pre-evolution with AbilitySticky Hold protecting held items. The moveset trails competitive thresholds across every stat. Muk improves the bulk and Attack.
Best Build
Grimer best EVs are HP and Sp. Def
Wall Moveset
- Toxic
- Sludge Bomb
- Dig
- Acid Armor
Recommended Teammates
Moves List
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 10 types.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Egg
- Inherited via breeding.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact. That triggers abilities like Static, Flame Body, Rough Skin, or Iron Barbs, plus items like Rocky Helmet and Sticky Barb.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM, Egg, and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM, Egg, and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
All 24 TMs are obtainable before the Elite Four
Egg Moves
Tutor Moves
Base Stats
Born from polluted sludge in the sea, GRIMER’s favorite food is anything filthy. They feed on wastewater pumped out from factories.
Grimer Emerald Guide
Yes. Wild Grimer in Emerald can hold Nugget (5%). Use Thief (TM46) or Covet to swipe the held item without affecting your catch chance. Quickest way to farm rare items like Nugget.
For Emerald, 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.
Yes. Alolan Grimer is a regional variant with different typing and a reworked stat spread. Introduced in Gen 7. Plays completely differently from the original.
Game Availability
Since debuting in Red & Blue, Grimer has appeared in 19 titles over 9 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 1RBDebut

Red & Blue - Gen 1Y
Yellow - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RS

Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG

FireRed & LeafGreen - Gen 4DP

Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7SMAlolan

Sun & Moon - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7Let's Go

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves
Explore
Where to go next after Grimer.
