Koffing and Weezing, known in Japan as Dogars (ドガース, Dogāsu) and Matadogas (マタドガス, Matadogasu) respectively, are two Pokémon species in Nintendo and Game Freak's Pokémon franchise linked through evolution. Koffing evolves into Weezing after gaining enough experience in battle. Created by Ken Sugimori, they first appeared in the video games Pokémon Red and Blue and later appear in subsequent sequels, various merchandise, spinoff titles, and animated and printed adaptations of the franchise. In Japanese, both characters are voiced by Unshō Ishizuka; in English Koffing is voiced by Michael Haigney, while Weezing is
Known as the Poison Gas Pokémon, Koffing and Weezing are Poison-type Pokémon, filled with toxic gases which give them buoyancy and the ability to levitate. They are utilized by antagonists, Team Rocket, as well as the poison-themed Gym Leaders, Koga and Roxie. In the first few seasons of the related anime and subsequent printed adaption, Koffing and later its evolution Weezing served as the primary Pokémon utilized by James of Team Rocket. Their designs have been met with mixed reception, with sources such as GamesRadar stating approval for Koffing's appearance, while GameDaily described it as a "floating fart ball". In contrast, Weezing has been praised to a lesser extent, described as both an "abomination" and "horrific" by various sources.