A Minute Bomb has a thin, armless body with short, thin legs without feet. Its head is spherical and is blue, the same color as its body. Its head it covered by two halves of a dark brown shell resembling a stereotypical bomb. A large, jagged opening around the middle of the shell exposes the Heartless's glowing, yellow eyes. The top half of the bomb shell sports a long, white fuse. Its Heartless emblem is present on the front of the top half of the shell.