A member of the Heroic Warriors, he is a part-human, part-cybernetic warrior with no legs. His lower body is shaped like a spinning top, enabling him to twist mechanically along the ground at super-speed. This enables him to trick opponents and easily dodge attacks.
Fun fact: Mattel had also designed a vehicle called the Gyrattacker which was intended to carry and launch Rotar into combat. This vehicle features in the comic, but the toy line was cancelled before it could be released.