He appears to be a normal-looking Goofy costume without his head and some discoloration around the body. His head is the same as his Disney counterpart as well, with the exception being that it has no long, droopy ears. Acephalous also wears a yellow jacket unlike Goofy's original black one.
Acephalous's body for the most part behaves exactly like the other suits. The only difference is that shutting off a camera does not work on him so the player must instead hide whenever he enters the Office. His head won't enter the office unless Purity summons it to the office. When Acephalous's head is in the office the player will be unable to hide under the desk. The player can't get rid of the head once it is in the office, as Purity prevents the player from shutting off the camera, and Daisy Duck prevents the player from shutting off the power.