A Rabid Dog resembles a small, blue dog with a massive head and an equally massive, toothed maw. Its ears are long, stand on end, and curl at the tips. It has a crooked, blue tail and four short legs with no discernible digits on its paws. Its long, pink tongue is often seen hanging out of its mouth. The Rabid Dog's large, yellow eyes each sport a black spiral pattern. It also wears a large, red collar with several conical, silver spikes on it, though, because of the Heartless's size, it is worn around its waist instead of its neck. Its Heartless emblem is on its rear.