Combine the Same Number Balls in the Field. Move it once, then two New Balls be Created. Bigger the ball to Target Number, Game is Finish. The Balls will Increase, so please Push Off them of the Field appropriately. If cannot Create a New Ball, the Game is Over. The different between 1 and 2. 2 has no ads. The stages are all different. If you like 1, I might want you to buy 2.