Robonova 1 is a 1-foot humanoid robot. Usually sold as a kit that can be assembled in 6-8 hours, it can walk, run, flip, dance, and do cartwheels and one-handed pushups.
Bogobot is the team that developed a bipedal robot. It has a camera, an electronic compass and a central processor. It can recognize an orange ball, move to it and kick it.
Michael Overstreet created a wrestling named Boomer. Boomer has been in several robotics competitions, entertaining the audience with its wrestling, punches and kicks.