Zombie Zilla is just that. Zombie Zilla
When Zilla jr killed Cyber-Zilla his body was left there to rott. Eventually he regenerated (Cuz they do that) And came back as a Zombie thing. His mission is to reunite and apologize with Zilla jr.
Powers and abilities
Basicly he can turn most life forms into zombies. He also has that fire breath thing that he only used once in the movie. He is telepathicly connected to Geo