The Overlord is a monster/robot hybrid. He usually has a robe on, but has been shown with it off. When it is off, he looks like a round robot, with 4 tentacles. Each tentacle can open its hands, and bring out drills. Also, he can dig his tentacles into the ground and absorb energy to make him grow in size. The robot body can also turn into a cannon. First, the torso rotates so that it is laying perfectly horizontal. Then, the torso splits in two, and out of the top comes the cannon. It can fire lasers, but is also capable of shooting the Overlord incase of a need for a quick getaway. He only appeared in UnderFist!!! The Rebellion!, the first UnderFist mini-story.