Roboto would be little more than a fighting automaton were it not for the "heart" given him by his creator, Man-At-Arms. Though his heart gives Roboto the capacity to feel compassion and other human emotions, it is also his weak spot. Skeletor has already stolen the heart of Roboto once, turning the robot into an evil war machine. With his heart intact, however, Roboto is one of the bravest and indefatigable warriors in Eternia.
