The glitching screen got to be quite the eye pain after a while, which really took away from the game play.

could have used some better contrast between the foreground elements and the background elements.

the jumping physics were ok, if a bit annoying in places (check out the better jump in 3 lines of code video).

Dude there are some jump and run noobs like me that need checkpoints xD

Feel free to check out my game as well. :)