Koffing, known as the Poison Gas Pokémon, is a Poison-type Pokémon, filled with toxic gases which give them buoyancy and the ability to levitate. It resembles a large, floating blue-purple ball with various gas-emitting stud-like orifices surrounding its body save for its face, which appears as a smiling mouth with two eyes, and two small white upper fangs protruding from its mouth and a skull and crossbones symbol directly below said mouth.