Although each Buffoon is unique in design, they possess some similarities in their appearance. Most are distorted versions of the object it is fused with, and possess a clown's eyes, hands, legs and some stick out their tongue.
The Buffoon's abilities have not yet been fully revealed, but each Buffoon's powers depends on their possessed object. For example, some 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 also use their long tongue in combat.