Heatran is a tortoise-like creature (which might also be based on a ram) with a reddish-brown body that has orange and grey spots. Heatran has metal bangles locked on its legs and the four claws on each of its feet are in a cross formation. Heatran has a grey underside, its face is covered by an iron mask and has red-orange eyes. Whenever it is seen with its mouth open, an orange glow emanates from inside it. Because of its intense body heat, certain parts of its body are melted slightly out of shape.