WARNING: CONTAINS SPOILERS. Credit to SketchGame. Well, I present you with Reverse-Gravity Gizmos. I'm still havin' some trouble, though. If you're a good programmer, I could use your help. To prove that to me, make a project with physics of some sort. Anyway, controls are the same, although you can now press 'R' to reset it in case you get trapped in a wall.