Squirrely. Anyway, press the flag to start, press space to clear your screen and go to the next background. Click to shoot. Also, you may have to press stop in order to change the sliders. This project is pretty much a demo. It functions perfectly, but there are barely any backgrounds. I made the crosshair with two sprites. The first one is completly solid and follows your mouse. The other sprite has been ghosted by 50 and follows the first crosshair.