Not too bad as a start, instructions on moving/what the blocks do would be useful to the player. read up some fricion script tho, you should "speed up" like that in the ice levels, you would just slide when you try and stop.
Hmm, i seem to have worked my way around the crashing, click on the tick but dont move your mouse, then click again on continue on the advertisment screen.
Suggestion - On the skill descriptions, tell the user what it actually DOES.
I'm Level 27 and i can get dual gem mastery. i have no idea how useful it is. =/