Those who have played or watched table tennis at a high level know that it requires great skill, speed, coordination, and excellent reflexes. In the video below, we see a robot named KUKA play against Timo Boll, a German champion of the game. I particularly liked the way it did the open-palm serve one-handed. (Via Rob Beschizza.)
UPDATE: Beschizza has updated the earlier video, which used heavy editing to produce what seems like spectacular effects, with one that shows uncut exchanges with a different robot. This is still pretty impressive. Note that the video sensors are near the ceiling.