Koffing
Koffing are poison Pokemon. Their bodies are filled with lighter than air gases, which are very volatile. Koffing hate to explode, but given the right hit, they can easily explode. They're fairly tough Pokemon, and they like to have fun. They can spew out alot of gas in just a few seconds. Koffings are commonly used to create car fuel, rocket fuel, and sometimes help supply gas for gas power plants.