Rampardos is a large, dark-gray dinosaur-like Pokémon which, like its predecessor Cranidos, is based upon a Pachycephalosaurus. Rampardos has a blue stripe on its tail and one blue stripe on each of its knees and wrists. Rampardos also has a spike on each knee. Rampardos has a blue collar on its neck with two spikes on it. Two of Rampardos's head spikes are bigger than the other two. Its red eyes are obstructed by its dome-shaped head. Two short spikes are on this Pokémon's nose.