Although each Buffoon is unique in design, they possess some similarities in their appearance. Most are distorted versions of their possessed object, and possess a clown's eyes, hands, and legs.
The Buffoon's abilities have not yet been fully revealed, but each Buffoon's powers depends on their possessed object. For example, many Buffoon monsters can fire high-speed missiles of their possessed objects, while the mirror Buffoon can reflect itself to create multiple images to create confusion. They have been shown to be able to jump to great heights, as well as engage in hand-to-hand combat. Buffoons can also use their long tongue in combat.