Eggman is a short-tempered, raucous, pompous, and cruel evil genius who is constantly trying to take over the world. His primary motivation throughout most games is his psychotic belief of self-entitlement. Arrogant and narcissistic, he constructs his countless technological wonders in his own image to fuel his massive ego, usually reinforced by his goal of building the Eggman Empire, and doesn't care where he starts it.