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How to install? Easy, just copy all scripts over to your project, IN THE SAME ORDER. Then make sure to copy all of the graphics over to your project as well and it should work fine...
open the project, and open the script editor. there is a button up top, or I think you press F11. Ummm, then just right click on the script in the left pane and click copy. Then open your game, open the script editor, and then go all the way to bottom but right above main, and right click and press paste. Do that for all the scripts. And make sure that they stay in the same order....