Muk
Red/Blue

Thickly covered with a filthy, vile sludge. It is so toxic, even its footprints contain poison.

Yellow

Smells so awful, it can cause fainting. Through degeneration, it lost its sense of smell.

Evolution Chain

grimer
Grimer
Level 38
muk
Muk

Pokédex & Training Data

Classification Sludge Pokémon
Height 1.2 m (3'11")
Weight 30.0 kg (66.1 lbs)
Abilities N/A in Gen I
EV Yield +1 hp
+1 attack
Catch Rate 75
Base Friendship 70
Growth Rate medium

Pokédex Numbers

Kanto (R/B/Y) #089
Johto (G/S/C) #117
Hoenn (R/S/E) #107
Johto (HG/SS) #118
Unova (B2/W2) #065
Hoenn (OR/AS) #112
Alola (S/M) #051
Alola (US/UM) #058
Paldea (S/V) #195
National #089
Blueberry #069

Held Items

None in this generation.

Game Locations

Pokemon Mansion 1f
Pokemon Mansion 2f
Pokemon Mansion 3f
Pokemon Mansion B1f
Power Plant Area

Learned Moves

Level Up Moves

Red/Blue
Lvl Name Class Power Acc. PP Effect
1 Pound
40 100% 35 Inflicts regular damage with no additional effect.
1 Disable
— 100% 20 Disables the target’s last used move for 1-8 turns.
1 Poison Gas
— 90% 40 Poisons the target.
30 Poison Gas
— 90% 40 Poisons the target.
33 Minimize
— — 10 Raises the user’s evasion by two stages.
37 Sludge
65 100% 20 Has a 30% chance to poison the target.
45 Harden
— — 30 Raises the user’s Defense by one stage.
53 Screech
— 85% 40 Lowers the target’s Defense by two stages.
60 Acid Armor
— — 20 Raises the user’s Defense by two stages.
Yellow
Lvl Name Class Power Acc. PP Effect
1 Pound
40 100% 35 Inflicts regular damage with no additional effect.
1 Disable
— 100% 20 Disables the target’s last used move for 1-8 turns.
1 Poison Gas
— 90% 40 Poisons the target.
30 Poison Gas
— 90% 40 Poisons the target.
33 Minimize
— — 10 Raises the user’s evasion by two stages.
37 Sludge
65 100% 20 Has a 30% chance to poison the target.
45 Harden
— — 30 Raises the user’s Defense by one stage.
53 Screech
— 85% 40 Lowers the target’s Defense by two stages.
60 Acid Armor
— — 20 Raises the user’s Defense by two stages.

TM/HM Moves

Red/BlueYellow
Name Class Power Acc. PP Effect
TM06 Toxic
— 90% 10 Badly poisons the target, inflicting more damage every turn.
TM08 Body Slam
85 100% 15 Has a 30% chance to paralyze the target.
TM15 Hyper Beam
150 90% 5 User foregoes its next turn to recharge.
TM20 Rage
20 100% 20 If the user is hit after using this move, its Attack rises by one stage.
TM21 Mega Drain
40 100% 15 Drains half the damage inflicted to heal the user.
TM24 Thunderbolt
90 100% 15 Has a 10% chance to paralyze the target.
TM25 Thunder
110 70% 10 Has a 30% chance to paralyze the target.
TM31 Mimic
— — 10 Copies the target’s last used move.
TM32 Double Team
— — 15 Raises the user’s evasion by one stage.
TM34 Bide
— — 10 User waits for two turns, then hits back for twice the damage it took.
TM36 Self Destruct
200 100% 5 User faints.
TM38 Fire Blast
110 85% 5 Has a 10% chance to burn the target.
TM44 Rest
— — 5 User sleeps for two turns, completely healing itself.
TM47 Explosion
250 100% 5 User faints.
TM50 Substitute
— — 10 Transfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.

Base Stats

Hp 105
Attack 105
Defense 75
Sp. Atk 65
Sp. Def 100
Speed 50
Total 500

Type Defenses

(vs. Gen 6+ rules)

0.5x
0.5x
0.5x
2x
2x
0.5x
0.5x