Very nice and simple pixel style game.
I really like the music and the whole concept.
Keep up the good work! :)
P.S. change the V1 at the bottom-right to V2. I don't know why but the "+10m" medal didn't unlock for me, maybe I just need to refresh the page as I can see it unlock for other people. The +50m medal is broken as you don't need to reach over 50m, you just need to get 50 in total, I don't know if this is intentional but if it is then make it so that the score resets after death.