undertale mettaton

Full Name Unknown Alias Mettaton Mettaton EX (Neutral and Pacifist Route) Mettaton NEO (Genocide Route) Killer Robot Happstablook (by Papyrus) Origin Undertale Occupation Human Eradication Robot (formerly) Robotic Entertainer King of the Underground (Mettaton ending) Powers / Skills Bionic physiology Ghost physiology Charisma Invulnerability undertale fan games