Bonnie is a bluish-purple-colored animatronic rabbit, with magenta eyes and a squarish muzzle. The color from his muzzle, stomach, and insides of his ears is lighter. He sports articulated ears that are capable of bending backwards and forwards (similar to several other animatronics' ears) and wears a red bow tie, which is partially obstructed by his chin. Onstage, he carries a dark red guitar. Unlike the other characters, he has round teeth and lacks eyebrows.

Excluding his head, most of Bonnie's body appears identical to Freddy's, apart from the latter's color. This version of Bonnie, like most of the animatronics in the first game (except for Foxy), has no visible teeth on his upper jaw.