These football playing robots look simple at first until you see how they operate. Robofoot is one of the competitors in the annual Robocup challenge.

"Robofoot is a student initiative devoted to the development of autonomous and cooperative multi-robots systems. The main goal of the project is to be the first Canadian team to participate in the Robot World Cup Soccer Games, the RoboCup (www.robocup.org), in the Middle Size Robot League. The RoboCup is an international competition, the occasion for robot teams of multiple universities and even private companies to challenge one another in a tournament which occurs at different places around the world. In fact, each edition of the cup attracts almost 100,000 visitors."