3SwitcheD Demo for Windows

Thanks to brilliant 3D-graphics and new technology, a cult classic has been transformed into a highly addictive masterpiece. "3SwitcheD" offers six diversified challenges and uncounted hours of gaming fun, including unlockable bonus levels and the never-ending chase for the elusive high score. The innovative 3D-ETTM Face-Tracking Technology takes your game to the next level: a camera will scan your movement in front of the screen in real time! The unique technology analyzes the position of your face in relation to the screen, and adjusts the playing field in real time as you target diamonds!

http://www.3switched.com