Muk (Pokémon)

In Sparks Fly for Magnemite, Ash caught a Muk after it caused trouble at the Gringey City power plant. Immediately afterwards, it was transferred to Professor Oak's lab. Since then, it has always tried to smother Professor Oak. In The Fourth Round Rumble, Ash first used Muk in battle against Jeanette Fisher's Bellsprout, which had already defeated his Bulbasaur and Pikachu.

In The Legend of Thunder!, Attila used a Muk to stop Vincent's Meganium and Jimmy's Typhlosion from freeing Raikou, but it was defeated by Little Miss.

Six Muk appeared in The Psyduck Stops Here!. Three of them invaded Lake Psyduck before being sent to a more appropriate home lake.

In Secrets From Out of the Fog!, a Team Plasma Grunt used a Muk to battle Ash and his friends, but it was defeated by Iris's Excadrill's Focus Blast.

In A Young Royal Flame Ignites!, the Revengers used an Alolan Muk to help Viren during his Battle Royal by distracting Incineroar.

In Healing the Healer!, a group of Pokémon hunters used a Muk to poison a lake in an attempt to draw the attention of Suicune. Once Goh caught Suicune, it was used to battle Ash and Goh before eventually being defeated.

In The Fire-ing Squad!, four Muk competed in the Fire and Rescue Grand Prix. They faced off against Ash's team and were able to put the fire out first.

In Carrying On!, an ill Muk was in Way Away Island's Pokémon Center.

In a flashback in The Joy of Water Pokémon, a Muk lived in Lake Lucid before it became the clean lake it is now.

A Muk appeared in the opening sequence of Destiny Deoxys.

In An Old Family Blend!, a Trainer's Muk competed in the Lily of the Valley Conference.

In Racing to a Big Event!, an Alolan Muk was eating the pancakes that were dropped during the Pancake Race.

In Alola, Kanto!, a Trainer's Alolan Muk was compared to Ash's Muk.

In This Magik Moment!, a Trainer's Alolan Muk competed on Alola Pokémon Quiz.

In Crowning the Chow Crusher!, a Scientist's Muk competed in the Pokémon Grand Eating Contest.

Muk in the animated trailer

In the Pokémon Black Version 2 and Pokémon White Version 2 Animated Trailer, a Team Plasma Grunt's Muk surrounded Nate, Hugh, and Cheren aboard the Plasma Frigate.

Main article: Ash's Muk

Ash's Muk only appeared on the scoreboard in One Half Of A Poké Ball.

Main article: Ash's Muk

Ash has a Muk that he caught off-screen. It was used in the Indigo League where it fought and defeated Jeanette Fisher's Bellsprout.

Muk debuted in You know... Articuno!, where it was used in by Harry to help Team Rocket on their mission to get Articuno. When Red tried to stop them, Harry sent Muk against Red's Gyara. It was eventually frozen by Articuno.

Muk is one of the Pokémon owned by Koga in Karate Machop!, where it was used on Cerise Island to battle the Elite Four, and proved useful in Koga's survival after the island began to crumble. In the HeartGold & SoulSilver chapter, it was used during the Circle Push event of the Pokéathlon.

A Muk appeared in a fantasy in Pinsir Me, I Must Be Dreaming.

A Muk appeared in a flashback as one of the Pokémon trained by the International Police in Innocent Scientist.

Multiple Muk appeared in Angry Boy, under the ownership of Team Plasma Grunts.

Multiple Muk appeared in a flashback in Abyssal Ruins, under the ownership of Team Plasma Grunts.

In Darkness!! The Mysterious Claws of Necrozma!, Moon's Alolan Grimer was revealed to have evolved into a Muk.

Giovanni sent out multiple Muk to prevent anyone from winning the contest he hosted on TV in Seize the Dream of One Million Yen!!.

A Muk appeared in Pikachu's Birthday Party.

Koga was revealed to have a Muk when Red battled Karen.

Alolan Muk has the same base stats as Kantonian Muk.

Muk is available in Brilliant Diamond and Shining Pearl.

Muk appears to be a pile of living sludge. It may also be based on the imagined fear that heavy pollution, caused by the leakage and/or improper disposal of toxic/radioactive waste, may result in the creation of new and undesirable life. It may also be based on Dorotabō, a one-eyed, three-fingered yōkai that rises from the mud of neglected, overgrown rice fields.

Alolan Muk may be based on an oil slick, particularly the rainbow colors that are produced when a thin layer of oil floats on top of water; this is due to a phenomenon called thin-film interference. In the real world, oil spills are a major threat to ecosystems in the world's oceans and particularly in Hawaii, which Alola is based on.

Muk is a corruption of muck (generally something filthy).

Betbeton may be derived from べとべと betobeto (sticky) and ton.