Ameboid

Ameboid is an enemy that can be found in Smithy's Factory in Super Mario RPG: Legend of the Seven Stars. He doesn't have high HP, but if you fail to destroy him in one attack he will split into four parts. Then he's a bit of a nuisance.

Trivia

 * Ameboids highly resemble blue, jelly-like Goombas and may be the Smithy's Factory answer to them.
 * An actual Ameboid, for which Ameboids are named, is a type of protozoa.