A Jumbo Cannon, fittingly, is shaped like a small cannon. Its body is dark grey with yellow highlights and red rivets. It has four short, sharp, black legs, a large, black spike on either of its sides, and a grey base. The Heartless's face is a black sphere with glowing yellow eyes set in the front of the cannon's body. The actual barrel of the cannon is light grey and has several black designs that cause it to resemble a face, with the mouth of the cannon being the nose. It also sports a short, curled, yellow fuse in its back.