This interactive gaming couch by Sinua boasts electronic sensors that detect the seating positions of its players, which are then (data) converted into onscreen movements. Two videos after the jump.
The thrill of this game is the possibility to influence it by changing the seating position on the sofa. All boundaries of the game show a typical behaviour of a wall. The more physical action used the faster the ball gets. Both, the “strategy of power” and the “strategy of minimal movement” lead to success.