Zombie-kun originates from Yasunari Nagatoshi's manga "Zo Zo Zo Zombie-kun," depicted as a child zombie in comedic, non-threatening scenarios. His defining trait involves manipulating detachable body parts for practical tasks—using his inflated stomach as a pillow, wringing out limbs like towels after water exposure, and reattaching them with adhesive. These actions unfold in a lighthearted, cartoonish style tailored for young audiences. He appears in the ONA "40-Shūnen da yo! Coro Coro All-Star Shōgakkō" among other Coro Coro Comics characters within an elementary school setting. This anthology, celebrating the magazine's 40th anniversary through crossovers, maintains Zombie-kun's established role: relying on visual gags and eccentric bodily abilities without narrative expansion or character development. His inclusion acts as a cameo reinforcing his comedic identity. A promotional crossover, "Zombie-kun's Survival Guide," links him to the "Zoids" franchise by humorously framing him as an indirect catalyst for a "Zombie Zoids" outbreak. This non-canonical segment leaves his core characterization and backstory unchanged, functioning as a self-contained marketing tie-in for merchandise. Zombie-kun has no documented appearances in films, OVAs, or spin-offs. His portrayal remains confined to episodic humor and visual comedy without overarching storylines.