Kirby O'Neil (2012 video games)

Kirby O'Neil in his bat mutation is a playable character in Teenage Mutant Ninja Turtles Legends.

TMNT Legends Bio
More feral than most mutants, Kirby Bat is non-verbal and doesn't retain much of his human personality. Luckily, Kirby Bat recognizes and does not harm her. He is calm when she is calm and angry when she is angry.