I have several Eye Toy games and played several of them when they were new. As mentioned they are similar to Kinect games, but more primitive. Kinect has a level of 3D tracking, but the Eye Toy works exclusively in 2D space. It can basically tell the difference between a static pixel (background) and a moving pixel (you) and adjusts the game play accordingly. Most games track arm movement, arms to the side. It can't tell if you are reaching forward for instance. I'm simplifying the explanation of course. If you like to play standing or have energetic kids, it's definitely worth a try.