FusionDex

Though they have a playful nature, Koffvee are hazardous to handle. They constantly change which vents on their bodies release the yellow, cloud-like smoke, making it difficult to anticipate where the toxic fumes will burst from next.

An Koffvee has an unstable genetic makeup that suddenly mutates due to its environment. Getting up close to a Koffvee will give you a chance to observe, through its thin skin, the toxic gases swirling inside.