A Perplex's body is small and oval-shaped, with short ears sprouting out of the top of its head. Its eyes are small and glow yellow and its Heartless emblem is on its chest. Its mouth is jagged, and its large wings are attached to either of its sides, each sporting a silver spike close to the Heartless's head. The Perplex's body is white, except for the tips of its ears and wings, which are black and dark grey. A short, silver, chain connects the Heartless's body to a large, indigo hook with a pale yellow base.
The Perplex's name may reference the question mark shape of its hook, as "perplex" means "to confuse" or "to puzzle".