The main character of all platformers can jump about 6 times their height, right? All pits that you can't see the bottom of in platformers are bad, right? WRONG!!! This platformer is breaking the rules set forth by its platformer predecessors. You can warp from one side of the screen to the other. Jump with space. Move with the arrow keys. Press R to restart. Try to get to the door.
I just fixed the last level where you could not get through a opening that you need to get through to win the level. ALL of the code belongs to @JeremiahMacDonald.