Video of humanoid robot football (soccer) competition in German, April 2008. They are a bit slow but it sure looks like this is a fun area to watch the improvement of robot engineering.
Related: RoboCup 2006 – The Science of the Football Swerve – Robo-One Grand Championship – Toyota Robots

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It may be slow, but look just how far technology has come! My favorite part was in the beginning where the Goal keeper tries to push the other robot out of the way. These are the beginnings of building robots that can explore other planets.
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