Use the space bar to kick the ball. After you score 5 points, the game is over and you win! If you miss 5 times, the game is over and you lose! There is also a target which you use to know where to kick the ball.
This program was made to use by the Super Scratch Programming Adventure!: Learn to Program By Making Cool Games book, which you can find here at: http://www.nostarch.com/scratch (It does cost some money, and the resources (the programs) are for download on this site link also for free)