A demo of the Scratch version of the Paintball game for TheLastHorizon. Draw lines on the screen with the mouse, then press the GO button. Try to bounce the ball to the GOAL. Space key erases your lines. "D" key turns on the pen and makes the guide ball visible so you can better see how it works. Thanks to thelasthorizon for inspiring me to take another look at this problem and to the original developer(s) of the Flash "Paintball" game.