To swiftly gather the yellow ball while avoiding contact with any other white balls is the object of the game. Your keyboard may be used to maneuver your character. To the left, in the shape of a heart, you can see how many lives your characters still have. If you make contact with the white balls, you die. Both the score indicator and the life indicator contain a yellow ball counter in the center that shows how many yellow balls you have acquired. You'll also notice the timer, who is really your competition. If the time runs out, you will get fewer points.