The idea is cool but uh, didn't you mistextured the super slippery ice with sand and wood textures ?
I mean it's really hard to stop where you want, or even just to rotate the character without moving him since the slightest movement last a long time. Plus i have to agree crossing the bumpers and stick is a weird way to go, it wasn't that hard to get used too though.
The triggers in the air could have been a little more obvious, as i thought it was the moon or some planet at first, tried for a couple minute to pass the first room when i accidently hitted it, but then it took me a couple other tries to figure out that this elements moving as fast as the background isn't part of the background actually.
So yeah the concept is interesting but i feel like there's still some work to do on polishing the sprites' origin, collisions, movement, enemy pattern, and level design which seems a little rushed.
I am sorry if i went a little hard on you on this one ^^"