Pokémon Claude Red ▶ Play free

Muk (#089)

Muk (#089) is a Poison-type Sludge Pokémon in Pokémon Red. You can catch Muk in Pokémon Mansion (1F), Pokémon Mansion (2F), Pokémon Mansion (3F), and Pokémon Mansion (B1F); the best odds are in Pokémon Mansion (2F) (1.2%, Lv 37). It evolves from Grimer at level 38 and doesn't evolve further. Its best stat is HP (105), and its base stat total of 400 ranks #46 of 151.

Muk pixel-art sprite
Muk, drawn from code for Pokémon Claude Red
National No.
#089
Type
Poison
Category
Sludge Pokémon
Height
3′11″ (1.2 m)
Weight
66.0 lb (29.9 kg)
Catch rate
75 of 255
Base EXP
157
Growth rate
Medium Fast
Muk is coated in a thick layer of foul, toxic sludge, and the poison runs so deep that even its footprints are dangerous to touch.

Where to find Muk in Pokémon Red

Base stats

StatBaseRank
HP105#8 of 151
Attack105#16 of 151
Defense75#54 of 151
Special65#73 of 151
Speed50#106 of 151
Total400#46 of 151

Generation I uses a single Special stat for both special attack and special defense.

Evolution

  1. Grimer pixel-art spriteGrimer
  2. Muk pixel-art spriteMuk at level 38

Type effectiveness against Muk

Damage takenTypes
4× (double weakness)—
2× (weak to)Ground Psychic Bug
½× (resists)Grass Fighting Poison
¼× (double resistance)—
0× (immune)—

Moves learned by level up

LevelMoveTypePowerAccuracyPP
StartPoundNormal40100%35
StartDisableNormal—55%20
StartPoison GasPoison—55%40
30Poison GasPoison—55%40
33MinimizeNormal—100%20
37SludgePoison65100%20
45HardenNormal—100%30
53ScreechNormal—85%40
60Acid ArmorPoison—100%40

TM and HM moves

TM/HMMoveTypePower
TM06ToxicPoison—
TM08Body SlamNormal85
TM15Hyper BeamNormal150
TM20RageNormal20
TM21Mega DrainGrass40
TM24ThunderboltElectric95
TM25ThunderElectric120
TM31MimicNormal—
TM32Double TeamNormal—
TM34BideNormal—
TM36Self-DestructNormal130
TM38Fire BlastFire120
TM44RestPsychic—
TM47ExplosionNormal170
TM50SubstituteNormal—

Frequently asked questions

Where do you find Muk in Pokémon Red?

You can catch Muk in Pokémon Mansion (1F), Pokémon Mansion (2F), Pokémon Mansion (3F), and Pokémon Mansion (B1F); the best odds are in Pokémon Mansion (2F) (1.2%, Lv 37).

What type is Muk?

Muk is Poison type. It takes double damage from Ground, Psychic, and Bug.

Does Muk evolve?

Muk is the final form: it evolves from Grimer at level 38.

What moves does Muk learn?

Muk starts with Pound, Disable, and Poison Gas and learns Poison Gas (Lv 30), Minimize (Lv 33), Sludge (Lv 37), Harden (Lv 45), Screech (Lv 53), and Acid Armor (Lv 60) by leveling up. It can learn 15 TMs and HMs.

What are Muk's base stats?

HP 105, Attack 105, Defense 75, Special 65, Speed 50, for a total of 400.

What's the catch rate of Muk?

Muk's catch rate is 75 out of 255.