Wario and Waluigi Slimes are rare slimes, that can spawn potentialy everywhere.
Everything including money
Slime that for unknown reason eats money. It's fat and super strong.
Their plorts are used to produce fake money, and because it's illegal, if you sell it, police should catch you...
Someone's feeling of becoming cheated
Your/Luigi's feeling of becoming cheated
Tall and skiny slime that can swim in midair
Their plorts are used to produce cheats. After selling it, police should catch you, so better use it by yourself (Wait... you can produce CHEATS?!!! IT'S CHEATING!!!)
Fat slime with Wario's face and cap
Tall slime with Waluigi's face and cap.
- These slimes have got own moon called "Waluigi Moon". It makes these slimes as glad to make them more SWAG.