|This character exists primarily or exclusively within the Sonic the Comic continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
It resembled a yellow three-headed dog, with each head resembling a different breed (for example, the left head resembles a bulldog). It absorbed Ruff as its organic battery, and later appeared to menace Tails. The Badnik Ruff was destroyed by Robotnik after Sonic threatened him.
- As a three-headed dog, the Badnik Ruff is a reference to the mythological Cerberus, which guarded the Greek/Roman Underworld.