Houndoom (Japanese: ヘルガー Herugaa) is a Dark/Fire-type Pokémon introduced in Generation II.
Houndoom are canine-like Pokémon, with a similar appearance to its pre-evolved form Houndour. Houndoom are large, black, and have a brown underbelly and muzzle. Around each of its ankles are two sets of bone-like bands. On its back are rib-like structures, appearing like an exoskeleton, that lead up to its neck. In between the two ends of the bone on its neck is a small skull emblem. Instead of having visible ears near the top of its head, Houndoom have large demon-like horn. Another notable feature is the long, skinny tail which ends in an arrow point.
Houndoom is the evolved form of Houndour. Houndour will evolve into this Pokémon once it reaches level 24.