Psychopaths

In addition to battling thousands of zombies, Frank West must also deal with psychopaths, humans who have either gone mad due to the zombie outbreak or are otherwise corrupt or evil, and who serve as the game's bosses. Examples include a clown who became insane after seeing his audience eaten, a manager of a food mart obsessed with keeping it clean and free of vandalism, a deranged butcher who thinks zombies are "spoiled meat" and humans are "fresh meat", and a Vietnam War veteran stuck in a war flashback after seeing his granddaughter eaten by zombies.