The Mouses are small gray machines with a yellow stribe. They have dome-shaped bodies with no legs, and mouse-like heads with a purple nose up front.
The Mouses are encountered exclusively in Gene Gadget Zone. In gameplay, they follow Sonic around when they get the hedgehog in their sights. While they have no active defensive or offensive weaponry, the Mouses make every effort to simply drive into Sonic and make him take damage.
- ↑ This Badnik was given no official name upon or after the release of Sonic 3D Blast. However, its name was revealed in the Debug Mode for the unofficial Sonic 3D Blast: Director's Cut video game developed by Jon Burton, the lead programmer of the Genesis version of Sonic 3D Blast. When asked about its validity, Burton that this Badnik's name was used in the original game.