8 Bit Zombie Full Byte

When digi-villain Zilla scores his own video game as the hero after a game-jumping adventure, his buddy Zombie decides to do the same. Unfortunately,
the trip leaves him hungry, and other games' characters can't shake off his zombie virus once they're bitten! The plague gets out of the arcade and into newer and newer games. With every upgrade, the zombies get better brain-bytes to bite! Can Zilla stop them...or even survive?