Takara Tomy’s Aero Spider Laser caters to those who have always wanted an R/C car capable of driving on walls. It uses “a set of photosensors mounted into it that detect the light beams� position and tell the car which direction to turn.” Video after the break.
Place the light beam in front of the car, and it follows, place the beam at the back of the car, and it turns around and starts following the light again.
[via Technabob]