Race up to four virtual cars around any household items you can find! Create your own racing circuit by placing real, physical stuff on the floor. The real objects will form obstacles for the projected cars. Change the track whenever you like! You can add a start/finish line and some checkpoints to define the route. When you're done racing, switch to combat mode and battle your friends! Room Racers uses four wireless game controllers, an infrared camera and a projector. It detects obstacles in real-time, so you can (literally) step in to stop your opponents.