Chaos is an apelike monster from the arcade game Primal Rage. He is one of the Destructive beasts and the god of Decay. Chaos was once a scientist - a witch doctor - who attempted to alter the course of evolution. One day, he cast a spell to turn himself into a being of greater power. Alas, the spell went horribly wrong, and Chaos was transformed into a disgusting creature, wallowing in his own filth for ages. Now he seeks to restore his glory, but must vanquish his foes to do so. Most of his attacks consist of bodily functions. His domain is the remnants of what used to be a thriving city, known as the Ruins.