This game is very fun and really impressive! :D Makes me think of Space Harrier and stuff. And that is VERY cool, especially for a little ol' score/survival challenge like this.
One small problem, though; ice cubes seem to desync the sprite-health connection. In fact, touching ice while at full health just shuts off sprite changes altogether! This leaves you with little idea of how many more screwups you can make, as well as how badly you need another ice stack :(
Overall, 4.5/5 stars, since the above issue is the only flaw I can really think of. Correcting it would make the experience just about flawless ;) We can't do fractional stars though, I'll round it up to a 5 for you~