The arrow on level 2 doesn't work. Looks like you're going for dexterity as a physical skill check which is good! Think about the end goal. This could be like the old flash games of reaching the highest level possible as a sort of high score. You could also tie in time taken with this, so you have both highest level + fastest run. This will then let people compare their score to their friends.
I can see this game as one of those time wasters students play in secondary school (I know I was one of those students :D )