Tell me more about Fibula, I have a soft spot for OCs like that :0
OK SO since fibula is a zombie, obviously he doesn't need to eat or drink regular food HOWEVER he does need to regularly consume chaos energy in order to continue being reanimated. BUT he's also super picky when it comes to the energy he "eats"... like if he ever came across fake chaos emeralds? gag. absolutely not. it just tastes bad to him, and would probably damage his body too if he consumed enough of it...
he also doesn't technically need to sleep BUT he can and will because it conserves energy. he prefers to sleep curled up in a little ball. and always in the most inconvenient spots. i can imagine eggman tripping over him more than once since he'll just zonk out in the middle of the hallway LOL.
something else about fibula is that he's basically immortal now. if you can call his current state of existence "living," anyway. cuz like, once he gets low enough on chaos energy, he'll kind of start to hibernate? until he can regain enough energy from the world around him. cuz i like to think the sonic world kind of just has latent energy flowing thru it, considering the gaias and all...
one more thing about him is that he didn't always have those robot legs. when he was alive, he had flesh and blood legs. but they rotted while he was dead, so eggman built him those replacements! very kind of him.

















