The object of the game is to pocket your set of assigned balls. The more balls sink the higher scores you get. Touch the screen to adjust the direction and drag down the power-up in the right to strike. The initial time limit of Challenge Mode is 2 minutes but once you sink a ball you will get additional time. As all the balls have been cleared, the pool will create a new group of balls to keep the game going on. Also you can play the Practice Mode which has no time limit but no high score record.