The aim of the game is to pocket the nine different balls on the table. For each shot, the white cue ball needs to hit the lowest numbered ball, but it is not necessary to pocket the balls in order - only that the nine-ball must be pocketed last. Click drag and release to launch the ball. On mobile drag your finger to rotate the stick, then click drag and release to launch the ball.
9 Ball Pro is a pool variant where the aim is to pocket the lowest numbered-ball every turn, leaving the nine-ball till last. You can challenge a bot, choosing from 3 levels of difficulty, or play against a friend on the same device.