Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Badniks are a group that appears in the Adventures of Sonic the Hedgehog television series. They are Dr. Ivo Robotnik's personal brand of robots, consisting of various diverse designs that Robotnik uses as his footsoldiers and lackeys in his mad schemes for the conquest and suppression of Mobius.
The most infamous of the Badniks are Scratch, Grounder and Coconuts who are Robotnik's go-to henchmen. However, they always fail in their assignments due to their utter incompetence.
The Badniks are based on the same robot line that appears in the Sonic the Hedgehog video games. However, only a few of them appear among these robots.