A glitchy level editor. press e to swap between editing and building. In building press the keys 1,2 and 3 for different blocks. Click to place the blocks and place the same block on top of another to delete it. When in edit mode you can press on a block and click the r key to rotate.
Thanks to griffpatch: most of the scripting comes from his Scrolling Tile Game tutorial, for his outro music and for his background. RobTop for making the original game and to everyone who made the other musics.