Total waste of time. Does nothing to enhnace a game whatsoever. All this does require you to run on the spot or a few feet either side whilst you are playing a game? Then it will measure what you have done. No more than a fancy pedometer. The fact you can use it with any title shows no software interaction whatever. Might have been good if linked to a sports title and how fast you ran was relevant to the what happended on screen.Just watch the video to see how pointless it is! The Wii is awsome with numerous great peripherals. This however is shameful. Buy a couple of quid pedometer and get the same info. Very poor indeed!