Use your mouse to aim your bowling ball and get it positioned as you like. Then make sure your mouse is on the ball so the mouse point is a hand. Then click and release when the red arrow is on top of the black arrow as that puts the speed and direction on the ball. The goal is to knock all the pins down with one ball. That is called a strike. If it takes two shots to knock all the pins down, that is a spare. If you can't knock on the pins down with two shots, you still get points for the pins you knocked down. You have 10 chances to knock down all the pins and beat Bowling Bold!