Gengar is a dark purple, bipedal Pokémon with a roundish body. It has red eyes and a wide mouth that is usually curled into a sinister grin. Multiple spikes cover its back, and it has large pointed ears. Its arms and legs are short with three digits on both its hands and feet. It also has a stubby tail. Gengar lives in shadows of rooms, caves, and dark places where shadows form. It is especially fond of urban areas such as cities and back alleys, but only during the night.