Use up and down arrows to aim, and Down arrow to kick. if you missed, your ball should be zapped right back down to scratch's foot. if you got the red ovoid, then you get a point. after you score a goal, press either up or down 3 times and press right.
I found it in my unshared folder, at first it had no programming, but all i added was the program, ball size, and red ovoid.