I like the game. The minimalist style appeals to me, as does the fact that there are no upgradable weapons and powers or whatnot. (I'm not saying games that incorporate that stuff are bad, just that I appreciate both, and here it's a plus for not having them).
I played on medium at first, mostly got my backside handed to me. I used touch controls which work well once you get used to them, haven't tried tilt. Managed 10 coins before I moved down to Slow. 15 Coins Get! And in a top 50 time.
Back to Medium I go.