WOW! Here's an explanation from the gentlemen in the vid:
We took an industrial robot, strapped a tennis racket and a sword to it, and put it under the control of a WiiMote. We ran very light pattern recognition on the WiiMote, so it would copy our sword swings.
What they don't say is that robot will beat anyone who accidently throws the Wii-mote. To death, that is.








