The game looks nice from the start.
I think if the tutorial signs where a bit further on the course or angles towards the player like the signs later on, that it would be perfect.
It has a great variety, after 4-5 tries I got news obstacles every time. At first I thought the kicking didn't do anything until I moved the camera down. Should it feel good kicking a beaver?
Overal looks great, I didn't hear music. Or is that a browser thing? Sound effects are ok. Great game, my highscore was 247. The only obstacle I never beat once was the Fruit Thursday, so when ever that showed up it was over.