From the Super Mario Wiki, the Mario encyclopedia
Munchelangelos are mice enemies who appear in the S.S. Caviar in Wario: Master of Disguise. They are normally found walking around an area and are harmless when passed by quickly. However, if Wario stays for too long close to one, it will attack by jump-charging at him, trying to bite him. They can be defeated with any attack. Their name is a pun on Michelangelo, a famous Italian Renaissance artist. Along with the other mice enemies in the game, they can occasionally be seen lifting their heads up, allowing a pair of eyes to peek out, suggesting they are actually a smaller creature in a costume. Six Munchelangelos appear in the game.
The Ratfael is a slightly stronger, orange variant of this enemy.
This happy little mouse has been living high on the hog on a luxury liner. Too much time at the buffet has engorged his belly to epic proportions.
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