Pretty fun game. I liked the simple art style, the fluid movement of your guys and the challenge of the ice levels. But it would be nice if you made clearer the fact that you die by standing still. Also, why do the levels loop without an ending screen? And make a "press enter to play" in the title screen, rofl.
Oh well. If you say you are going to make this into a bigger version, you can at least fix those flaws.