It's like bubble pop but revolving around a circle. you shoot your bubbles and burst them when you have 3 of the same color with your "bubble bullet". The powerups are cool. The nuke is funny as it zooms in on the middle and the shoe alloys you to jump on the alien blobs ----great lite version ----and the price is right. Very nice to play if you have a few minutes. You can slide around the perimeter of the circle with either the tap controls or the accelerometer.