The object of Zuma is to eliminate all the balls rolling onscreen beforethey reach the skull. When a ball reaches the skull, you will lose oneof your lives, and when all your lives are gone, it's game over! How do you eliminate balls? Easy! When you fire a ball into a group of 2or more of the same color, they explode! Not only that, but creatinggaps between groups of like color causes them to attract and explode ontheir own. Practice your aim to make sets quickly and efficiently!