Goiaba

Goiaba is a hidden character that can only be recruited by using the "ABAIOG" cheat code at the start of the game, or in the secret place in Aquarium City.

Goiaba is a completely unbalanced character, made by Goiaba Megas Xellox (the game's creator) to playtest the game faster.

Her quirk is being a god, having only 3 skills. "create", healing your whole team, "destroy", dealing huge amounts of damage, and "watch", a move that does nothing at all.

The game itself describes her as:

"The cringy self insert. You shouldn't be able to read this."