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Muk

#89 in the FireRed and LeafGreen Pokédex • Sludge Pokémon

FireRed

It is usually undetectable because it blends in with the ground. Touching it can cause terrible poisoning.

LeafGreen

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

Egg Group

Amorphous

Steps to Hatch

5,120

Effort Values Yielded

1 HP, 1 Atk

Gender Ratio

50% male / 50% female

Capture Rate

75

Base Experience

175
PokémonRequiresEvolution
Grimer

Grimer

#88

Level 38

Muk

Muk

#89

LeafGreen

LocationMethodLevelChanceConditions

Pokémon Mansion

Pokemon Mansion (1F)

Walking in tall grass or a cave325%

-

Pokémon Mansion

Pokemon Mansion (2F)

Walking in tall grass or a cave325%

-

Pokémon Mansion

Pokemon Mansion (3F)

Walking in tall grass or a cave325%

-

Pokémon Mansion

Pokemon Mansion (B1F)

Walking in tall grass or a cave345%

-

Grimer

Shellder

Muk normal sprite

Normal

Shiny Muk sprite

Shiny

Muk

Sludge Pokémon

#89
Poison

Height

1.2 m

Weight

30 kg

Base XP

175

Abilities

StenchSticky Hold

HP

105

Attack

105

Defense

75

Sp. Atk

65

Sp. Def

100

Speed

50

Total

500

Type Chart

Weaknesses

Takes 2× from

GroundPsychic

Resistances

Takes 0.5× from

GrassFightingPoisonBug
Class
Description
StartPoundNormalPhysical4010035

A physical attack delivered with a long tail or a foreleg, etc.

StartHardenNormalStatus--30

The user stiffens all the muscles in its body to raise its DEFENSE stat.

StartPoison GasPoisonStatus-5540

The foe is sprayed with a cloud of toxic gas that may poison the foe.

4HardenNormalStatus--30

The user stiffens all the muscles in its body to raise its DEFENSE stat.

8DisableNormalStatus-5520

For a few turns, it prevents the foe from using the move it last used.

13SludgePoisonSpecial6510020

Toxic sludge is hurled at the foe. It may poison the target.

19MinimizeNormalStatus--20

The user compresses all the cells in its body to raise its evasiveness.

26ScreechNormalStatus-8540

An ear-splitting screech is emitted to sharply reduce the foe’s DEFENSE.

34Acid ArmorPoisonStatus--40

The user alters its cells to liquefy itself and sharply raise DEFENSE.

47Sludge BombPoisonSpecial9010010

Filthy sludge is hurled at the foe. It may poison the target.

61MementoDarkStatus-10010

The user faints, but sharply lowers the foe’s ATTACK and SP. ATK.

Class
Description
HM04StrengthNormalPhysical8010015

The foe is slugged at maximum power. Can also be used to move boulders.

HM06Rock SmashFightingPhysical2010015

An attack that may also cut DEFENSE. It can also smash cracked boulders.

TM01Focus PunchFightingPhysical15010020

An attack that is executed last. The user flinches if hit beforehand.

TM06ToxicPoisonStatus-8510

A move that badly poisons the foe. Its poison damage worsens every turn.

TM10Hidden PowerNormalSpecial110015

An attack that varies in type and intensity depending on the user.

TM11Sunny DayFireStatus--5

The sun blazes for five turns, powering up FIRE-type moves.

TM12TauntDarkStatus-10020

The foe is taunted into a rage that allows it to use only attack moves.

TM15Hyper BeamNormalSpecial150905

A severely damaging attack that makes the user rest on the next turn.

TM17ProtectNormalStatus--10

Enables the user to evade all attacks. It may fail if used in succession.

TM18Rain DanceWaterStatus--5

A heavy rain falls for five turns, powering up WATER- type moves.

TM19Giga DrainGrassSpecial751005

A harsh attack that absorbs half the damage it inflicted to restore HP.

TM21FrustrationNormalPhysical-10020

This attack move grows more powerful the less the user likes its TRAINER.

TM24ThunderboltElectricSpecial9510015

A strong electrical attack that may also leave the foe paralyzed.

TM25ThunderElectricSpecial1207010

A brutal lightning attack that may also leave the foe paralyzed.

TM27ReturnNormalPhysical-10020

This attack move grows more powerful the more the user likes its TRAINER.

TM28DigGroundPhysical6010010

An attack that hits on the 2nd turn. Can also be used to exit dungeons.

TM31Brick BreakFightingPhysical7510015

An attack that also breaks any barrier like LIGHT SCREEN and REFLECT.

TM32Double TeamNormalStatus--15

The user creates illusory copies of itself to raise its evasiveness.

TM34Shock WaveElectricSpecial60-20

A rapid jolt of electricity strikes the foe. It can’t be evaded.

TM35FlamethrowerFireSpecial9510015

The foe is scorched with intense flames. The foe may suffer a burn.

TM36Sludge BombPoisonSpecial9010010

Filthy sludge is hurled at the foe. It may poison the target.

TM38Fire BlastFireSpecial120855

The foe is hit with an intense flame. It may leave the target with a burn.

TM39Rock TombRockPhysical508010

Boulders are hurled at the foe. It also lowers the foe’s SPEED if it hits.

TM41TormentDarkStatus-10015

It enrages the foe, making it incapable of using the same move successively.

TM42FacadeNormalPhysical7010020

An attack that is boosted if user is burned, poisoned, or paralyzed.

TM43Secret PowerNormalPhysical7010020

An attack that may have an additional effect that varies with the terrain.

TM44RestPsychicStatus--5

The user sleeps for two turns to fully restore HP and heal any status problem.

TM45AttractNormalStatus-10015

If it is the other gender, the foe is made infatuated and unlikely to attack.

TM46ThiefDarkPhysical4010010

An attack that may take the foe’s held item if the user isn’t holding one.

Class
Description
Body SlamNormalPhysical8510015

The user drops its full body on the foe. It may leave the foe paralyzed.

ExplosionNormalPhysical2501005

The user explodes to inflict terrible damage even while fainting itself.

MimicNormalStatus--10

The user copies the move last used by the foe for the rest of the battle.

SubstituteNormalStatus--10

The user creates a decoy using one- quarter of its full HP.

Stench

Helps repel wild Pokémon.

Has a 10% chance of making target Pokémon flinch with each hit.

Sticky Hold

Prevents item theft.

Prevents a held item from being removed by other Pokémon.

Dittobase

© 2026 dittobase.com. All rights reserved.

This website is an independent platform and is not associated with, validated, backed, or sponsored by Nintendo, Game Freak, Niantic, or The Pokémon Company.

FR/LG / Pokédex

Muk

Muk

#89 in the FireRed and LeafGreen Pokédex • Sludge Pokémon

FireRed

It is usually undetectable because it blends in with the ground. Touching it can cause terrible poisoning.

LeafGreen

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

Egg Group

Amorphous

Steps to Hatch

5,120

Effort Values Yielded

1 HP, 1 Atk

Gender Ratio

50% male / 50% female

Capture Rate

75

Base Experience

175
PokémonRequiresEvolution
Grimer

Grimer

#88

Level 38

Muk

Muk

#89

LeafGreen

LocationMethodLevelChanceConditions

Pokémon Mansion

Pokemon Mansion (1F)

Walking in tall grass or a cave325%

-

Pokémon Mansion

Pokemon Mansion (2F)

Walking in tall grass or a cave325%

-

Pokémon Mansion

Pokemon Mansion (3F)

Walking in tall grass or a cave325%

-

Pokémon Mansion

Pokemon Mansion (B1F)

Walking in tall grass or a cave345%

-

Grimer

Shellder

Muk normal sprite

Normal

Shiny Muk sprite

Shiny

Muk

Sludge Pokémon

#89
Poison

Height

1.2 m

Weight

30 kg

Base XP

175

Abilities

StenchSticky Hold

HP

105

Attack

105

Defense

75

Sp. Atk

65

Sp. Def

100

Speed

50

Total

500

Type Chart

Weaknesses

Takes 2× from

GroundPsychic

Resistances

Takes 0.5× from

GrassFightingPoisonBug
Class
Description
StartPoundNormalPhysical4010035

A physical attack delivered with a long tail or a foreleg, etc.

StartHardenNormalStatus--30

The user stiffens all the muscles in its body to raise its DEFENSE stat.

StartPoison GasPoisonStatus-5540

The foe is sprayed with a cloud of toxic gas that may poison the foe.

4HardenNormalStatus--30

The user stiffens all the muscles in its body to raise its DEFENSE stat.

8DisableNormalStatus-5520

For a few turns, it prevents the foe from using the move it last used.

13SludgePoisonSpecial6510020

Toxic sludge is hurled at the foe. It may poison the target.

19MinimizeNormalStatus--20

The user compresses all the cells in its body to raise its evasiveness.

26ScreechNormalStatus-8540

An ear-splitting screech is emitted to sharply reduce the foe’s DEFENSE.

34Acid ArmorPoisonStatus--40

The user alters its cells to liquefy itself and sharply raise DEFENSE.

47Sludge BombPoisonSpecial9010010

Filthy sludge is hurled at the foe. It may poison the target.

61MementoDarkStatus-10010

The user faints, but sharply lowers the foe’s ATTACK and SP. ATK.

Class
Description
HM04StrengthNormalPhysical8010015

The foe is slugged at maximum power. Can also be used to move boulders.

HM06Rock SmashFightingPhysical2010015

An attack that may also cut DEFENSE. It can also smash cracked boulders.

TM01Focus PunchFightingPhysical15010020

An attack that is executed last. The user flinches if hit beforehand.

TM06ToxicPoisonStatus-8510

A move that badly poisons the foe. Its poison damage worsens every turn.

TM10Hidden PowerNormalSpecial110015

An attack that varies in type and intensity depending on the user.

TM11Sunny DayFireStatus--5

The sun blazes for five turns, powering up FIRE-type moves.

TM12TauntDarkStatus-10020

The foe is taunted into a rage that allows it to use only attack moves.

TM15Hyper BeamNormalSpecial150905

A severely damaging attack that makes the user rest on the next turn.

TM17ProtectNormalStatus--10

Enables the user to evade all attacks. It may fail if used in succession.

TM18Rain DanceWaterStatus--5

A heavy rain falls for five turns, powering up WATER- type moves.

TM19Giga DrainGrassSpecial751005

A harsh attack that absorbs half the damage it inflicted to restore HP.

TM21FrustrationNormalPhysical-10020

This attack move grows more powerful the less the user likes its TRAINER.

TM24ThunderboltElectricSpecial9510015

A strong electrical attack that may also leave the foe paralyzed.

TM25ThunderElectricSpecial1207010

A brutal lightning attack that may also leave the foe paralyzed.

TM27ReturnNormalPhysical-10020

This attack move grows more powerful the more the user likes its TRAINER.

TM28DigGroundPhysical6010010

An attack that hits on the 2nd turn. Can also be used to exit dungeons.

TM31Brick BreakFightingPhysical7510015

An attack that also breaks any barrier like LIGHT SCREEN and REFLECT.

TM32Double TeamNormalStatus--15

The user creates illusory copies of itself to raise its evasiveness.

TM34Shock WaveElectricSpecial60-20

A rapid jolt of electricity strikes the foe. It can’t be evaded.

TM35FlamethrowerFireSpecial9510015

The foe is scorched with intense flames. The foe may suffer a burn.

TM36Sludge BombPoisonSpecial9010010

Filthy sludge is hurled at the foe. It may poison the target.

TM38Fire BlastFireSpecial120855

The foe is hit with an intense flame. It may leave the target with a burn.

TM39Rock TombRockPhysical508010

Boulders are hurled at the foe. It also lowers the foe’s SPEED if it hits.

TM41TormentDarkStatus-10015

It enrages the foe, making it incapable of using the same move successively.

TM42FacadeNormalPhysical7010020

An attack that is boosted if user is burned, poisoned, or paralyzed.

TM43Secret PowerNormalPhysical7010020

An attack that may have an additional effect that varies with the terrain.

TM44RestPsychicStatus--5

The user sleeps for two turns to fully restore HP and heal any status problem.

TM45AttractNormalStatus-10015

If it is the other gender, the foe is made infatuated and unlikely to attack.

TM46ThiefDarkPhysical4010010

An attack that may take the foe’s held item if the user isn’t holding one.

Class
Description
Body SlamNormalPhysical8510015

The user drops its full body on the foe. It may leave the foe paralyzed.

ExplosionNormalPhysical2501005

The user explodes to inflict terrible damage even while fainting itself.

MimicNormalStatus--10

The user copies the move last used by the foe for the rest of the battle.

SubstituteNormalStatus--10

The user creates a decoy using one- quarter of its full HP.

Stench

Helps repel wild Pokémon.

Has a 10% chance of making target Pokémon flinch with each hit.

Sticky Hold

Prevents item theft.

Prevents a held item from being removed by other Pokémon.

Dittobase

© 2026 dittobase.com. All rights reserved.

This website is an independent platform and is not associated with, validated, backed, or sponsored by Nintendo, Game Freak, Niantic, or The Pokémon Company.