Sleimok

Red +2: 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.

Gold: They love to gath­ er in smelly areas where sludge ac­ cumulates, making the stench around them worse.

Silver: Its body is made of a powerful poi­ son. Touching it accidentally will cause a fever that requires bed rest.

Crystal: As it moves, a very strong poison leaks from it, making the ground there barren for three years.

Ruby: From MUK’s body seeps a foul fluid that gives off a nose-bendingly horrible stench. Just one drop of this POKéMON’s body fluid can turn a pool stagnant and rancid.

Sapphire: This POKéMON’s favorite food is anything that is repugnantly filthy. In dirty towns where people think nothing of throwing away litter on the streets, MUK are certain to gather.

Emerald: It prefers warm and humid habitats. In the summertime, the toxic substances in its body intensify, making MUK reek like putrid kitchen garbage.

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

Diamond +5: A toxic fluid seeps from its body. The fluid instantly kills plants and trees on contact.

HeartGold / X: They love to gather in smelly areas where sludge accumulates, making the stench around them worse.

SoulSilver: Its body is made of a powerful poison. Touching it accidentally will cause a fever that requires bed rest.

Black 2 / White 2: It’s so stinky! Muk’s body contains toxic elements, and any plant will wilt when it passes by.

Omega Ruby: From Muk’s body seeps a foul fluid that gives off a nose-bendingly horrible stench. Just one drop of this Pokémon’s body fluid can turn a pool stagnant and rancid.

Alpha Sapphire: This Pokémon’s favorite food is anything that is repugnantly filthy. In dirty towns where people think nothing of throwing away litter on the streets, Muk are certain to gather.

Sun: The stench it gives off will make your nose scrunch up. Still, there are Muk fans who think that’s a good thing.

Moon: After recent environmental improvements, this Pokémon is now hardly seen at all. People speculate that it may go extinct at some point.

Ultra Sun: Their food sources have decreased, and their numbers have declined sharply. Sludge ponds are being built to prevent their extinction.

Ultra Moon: Because they scatter germs everywhere, they’ve long been targeted for extermination, leading to a steep decline in their population.

Let's Go Pikachu / Let's Go Eevee: Smells so awful, it can cause fainting. Through degeneration of its nose, it lost its sense of smell.