Arrow Keys | Move You can jump up a small height or a tall height (is that even English?). You can also change how fast you go up or down, and if you click "See Inside" you'll be able to change your max jump power (the larger its value is, the more varied the height of your jump can be). Now you can have variable jump heights, like in Super Mario Bros.
Using your ninja skills, you can cling to ceilings and hide away inside walls :P in reality this platformer script is just broken a little bit