http://www.kongregate.com/games/BitBattalion/mr-runner
Cute game. Is hard, but not too hard.

Mr. Runner is the new Robot Raptor Jesus:
d1 5d 1e 66 1e 87 46 1f 00 =>
47 5d 1e 66 1e 87 46 1f 00

(it means he can't die)