In the Video Game series, Zola received Killer Bat after swallowing a Light Sphere she received from Nene in order to defeat a troop of monsters. Over her time secretly working for Nene, Zola eventually expelled Nene's power from Killer Bat and made it her own. However, it was revealed that the part of Nene that Zola managed to expel from her Shadow survived and ended up in a Cube World where Nene managed to regain his power in the form of an evil Killer Bat until he gave it up to save Himiko.