|This character exists primarily or exclusively within the Sonic Underground continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Chomps is the only other known inhabitant of Floating Island in Sonic Underground, and served Knuckles by devouring intruders who came onto the island. He wanted to eat Sleet and Dingo, but after Knuckles released them they ran away, leaving behind a holo-projector with falsified images of Sonic, Sonia, and Manic the Hedgehog, planning to steal the Chaos Emerald. Chomps ate the projector, causing the images to appear out of his mouth and nostrils. Thanks to this, the Hedgehogs were able to determine why Knuckles was attacking them.
- Chomps shares an uncanny resemblance with the Biolizard in Sonic Adventure 2, which was released nearly two years after the episode aired.