is this finished?
Seems like a rushed job to me. What is that weird white place on top of the screen with some numbers on it that are cut off from the screen? That can't be intentional :P. Looks really ugly and unfinished.
What happens to the ice behind you? It looks pretty weird and bad imo. There are also sometimes gaps on the ice spawns, doesn't look good. Also what is the chance of a snowman to spawn? I saw them very rarely, but the trees could come like two in same cliff. The snowman also slows you down way too much.
I think you should play Canabalt a couple more times. You made a direct copy with different graphics except that you messed up some things, thus you made a bad copy. You didn't add anything new to the game nor did you remove anything. 'Bad copy' summaries this game.