The classic two-player boxing robot game is back and now technologically re-vamped with original hardware and the use of the Chronos watch. Wearing the Chronos watches, one on each hand, each player is in complete control of the robot. With the data from the acceleration sensors on the watches, each physical punch thrown by the player commands the robot to throw a punch with the corresponding arm. To control the position of the robot, the player tilts his/her hands forward, backward, left, or right. Despite the change in controls, the rules of the game remain the same: A player wins a round by punching the opponent (robot) with enough force, resulting in the opposing robot's head popping up.
Note: Each player must keep their arms in basic "fighting stance", mimicking the position of the robot's arms, during the entire course of the game. This ensures that the physical movements of the player transfer as expected to the game board.
[Source] http://processors.wiki.ti.com/index.php/Electronic_Rock-Em_Sock-Em_Robots