Heatblast is a plasma-based life-form whose body is composed of a super hot inner plasma body covered by dark reddish brown volcanic rocks.[pop-up 1][4] As a fire-based entity, his body radiates high amounts of heat. His feet have a slight oval-like design with only two toes and one back toe. His tongue is also made of fire[5] while his collarbone resembles a volcano which generates a fiery "hair" that covers his head, leaving his mask-like face visible with no nose or ears.