Based on the Light Harp invented by Assaf Gurner,[13] it could read the player's physical movements and was the first controller to allow full-body motion sensing. However, it was a commercial failure due to its "unwieldiness and inaccuracy".[14] Nintendo's Wii system released in 2006 utilizes the Wii Remote controller, which uses accelerometers to detect its approximate orientation and acceleration and an image sensor,[15] so it can be used as a pointing device. The Sixaxis, DualShock 3, and PlayStation Move controllers for Sony's PlayStation 3 system have similar motion sensing capabilities.