Alpha-sapphire: Koffing embodies toxic substances. It mixes the toxins with raw garbage to set off a chemical reaction that results in a terribly powerful poison gas. The higher the temperature, the more gas is concocted by this Pokémon.Omega-ruby: If Koffing becomes agitated, it raises the toxicity of its internal gases and jets them out from all over its body. This Pokémon may also overinflate its round body, then explode.Y: Lighter-than-air gases in its body keep it aloft. The gases not only smell, they are also explosive.