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.

- 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
- Pokémon Mansion (1F): walking, Lv 39, 1.2% of encounters.
- Pokémon Mansion (2F): walking, Lv 37, 1.2% of encounters.
- Pokémon Mansion (3F): walking, Lv 42, 1.2% of encounters.
- Pokémon Mansion (B1F): walking, Lv 42, 1.2% of encounters.
Base stats
| Stat | Base | Rank | |
|---|---|---|---|
| HP | 105 | #8 of 151 | |
| Attack | 105 | #16 of 151 | |
| Defense | 75 | #54 of 151 | |
| Special | 65 | #73 of 151 | |
| Speed | 50 | #106 of 151 | |
| Total | 400 | #46 of 151 |
Generation I uses a single Special stat for both special attack and special defense.
Evolution
Type effectiveness against Muk
| Damage taken | Types |
|---|---|
| 4× (double weakness) | — |
| 2× (weak to) | Ground Psychic Bug |
| ½× (resists) | Grass Fighting Poison |
| ¼× (double resistance) | — |
| 0× (immune) | — |
Moves learned by level up
| Level | Move | Type | Power | Accuracy | PP |
|---|---|---|---|---|---|
| Start | Pound | Normal | 40 | 100% | 35 |
| Start | Disable | Normal | — | 55% | 20 |
| Start | Poison Gas | Poison | — | 55% | 40 |
| 30 | Poison Gas | Poison | — | 55% | 40 |
| 33 | Minimize | Normal | — | 100% | 20 |
| 37 | Sludge | Poison | 65 | 100% | 20 |
| 45 | Harden | Normal | — | 100% | 30 |
| 53 | Screech | Normal | — | 85% | 40 |
| 60 | Acid Armor | Poison | — | 100% | 40 |
TM and HM moves
| TM/HM | Move | Type | Power |
|---|---|---|---|
| TM06 | Toxic | Poison | — |
| TM08 | Body Slam | Normal | 85 |
| TM15 | Hyper Beam | Normal | 150 |
| TM20 | Rage | Normal | 20 |
| TM21 | Mega Drain | Grass | 40 |
| TM24 | Thunderbolt | Electric | 95 |
| TM25 | Thunder | Electric | 120 |
| TM31 | Mimic | Normal | — |
| TM32 | Double Team | Normal | — |
| TM34 | Bide | Normal | — |
| TM36 | Self-Destruct | Normal | 130 |
| TM38 | Fire Blast | Fire | 120 |
| TM44 | Rest | Psychic | — |
| TM47 | Explosion | Normal | 170 |
| TM50 | Substitute | Normal | — |
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.