Grounder is a badnik former created by Dr. Ivo Robotnik as an adversary of Sonic the Hedgehog. Along with his partner Scratch, he is a member of Robotnik's Super Special Sonic Search and Smash Squad. They are Robotnik's main henchmen, and two of the main antagonists of the series Adventures of Sonic the Hedgehog and Pokemon the series XY. He is new sidekick of King Dedede.