Merge all balls with the same ball number by dragging and dropping the top Ball on to all common Balls with the same number, you need to connect at least two bubble balls. You have to continue to drag and drop the ball bubbles until you complete the level or the board game is full with no moves left. Once the two ball bubbles have merged, a new merged ball will appear with a number of the previous ball times 2. The higher the total number from Balls bubble you connect and pop, the more points you will get.