Click on a puck to fire the marbles out the sides. The marbles destroy pucks they hit. But not all pucks have marbles facing each direction. Try to clear the board leaving less than the number written at the top center of the game screen to advance to the next level.
Pucks with no marbles have already been clicked. A good strategy is to try and destroy those pucks first. Plus they give 150 points where a puck with Marbles only gives 100 points.
Coins have bonus affects when rolled over, or dragged onto pucks.