Wow, glitchy.
This game had so many glitches they actually made it more interesting. I ran into a number of things: screen flashing on death, entering a room that doesn't exist and be trapped in an eternal fall, etc.
Obviously it was made quickly, and it's still a decent enough game, but a lot of these things really should have been caught.
I'm only mentioning this because I ~somehow~ glitched up a medal. On level three I went off the right edge of the first screen, did a double take and went left again, and was treated to a constantly flashing screen. I right-clicked and selected "play" and it took me to the preloader and gave me the "you beat the game medal." I'm not entirely sure what happened...
Anyway, look into it, still a good game, yadda yadda.