Badniks

Badniks (バッドニック, Baddonikku), are a group that appeared in the Sonic Pokémon series created by Yuji Naka and Satoshi Tajiri. They are robots utilized and created by Dr. Ivo Robotnik in his scheme to capture Sonic and harness his power for world conquest. Although they have no official name, they are affectionately referred to as "Badniks" by Ivo.

"Ever wonder where your tax dollars are going?"
 * —Dr. Ivo Robotnik, About Badniks.

Appearance
These robots come in a variety of models depending on the intended task, but they all bear a distinct egg-like appearance with white casings and a single red camera "eye".