Apoo also has a rather broad chest cavity, which may aid him in producing deep and bellowing drum-like sounds. Apoo's lower jaw is also somewhat wider than the upper half of his face, similar to Itomimizu of the Foxy Pirates. Besides these, his most distinguishing attributes are his unique physical characteristics and the objects adorned on him, all of which are music themed or related. His teeth have a unique look to them as they resemble piano keys. His fighting stance is also music themed.