Ever since we bought the XBox 360 December last year. Unlike the males in my house, who plays all sorts of games, I am only interested in Kinect games. As the surface of our floor tiles are on the rougher side, after some intense jumping and sliding of our feet while we were playing Kinect games, it does hurt a little. Therefore we bought some kids yoga mats, just to absorb some pressure, thus, we could play longer! *laugh*