Koffing is a Poison-type Pokémon introduced in the first generation of Pokémon games. It resembles a floating, spherical creature covered in purple gas-filled sacs. Koffing is known for its ability to emit toxic fumes, which can be harmful to both people and Pokémon. It evolves into Weezing when it reaches a certain level. Koffing is often found in polluted areas, where it thrives on toxic waste. Its body is composed of gas, allowing it to float effortlessly in the air. In battles, Koffing can use various moves, including Sludge and Toxic, to inflict damage and status effects on opponents.