The HeadFlip engine is a platforming engine with a twist - you can press space to flip gravity! What do you guys think? KNOWN BUGS: Sometimes you will glitch out in small spaces. This is just how the engine works, I will try to fix this.
Credit to @griffpatch_tutor for the platformer tutorial. The gravity flipping idea comes from a game called VVVVVV. You can use this engine without asking, as long as you give credit. Remember to seal your map borders, otherwise you'll get glitches! WAD to move, Space to flip, R to respawn (if you get stuck.)