4 stars: Decent quick freebie game. As people mention the autodeath on lifting finger can be pretty harsh, especially as it's easy to lose if your finger gets too close to the edge where many stars are. Ideally, autodeath would be replaced with exponentially rapid point loss, death on score=0. This allows players to recover from very minor disconnects and still see the rest of your game. If people keep losing in such a short time for things that feel cheap, they're less likely to continue and find the more fun challenges! Sudden panic followed by slight relief will feel more fun then sudden disappointment. And as others said, an option to disable ads is win/win, as some people just prefer a clean experience and it'll probably net you more then those ads are!
5 stars: Amazing
4 stars: You need to disable death on finger release. Sometimes you want to move it right to the edge and if your finger slips off you lose. Pretty unfair. Now I understand that, that may be a fix for teleporting, but you can always combat that with it slowly moving to your finger if a finger is released and when contact with touch point is reached then resume regular movement. Just a few tips from a designer/tester. Thanks.
4 stars: Gameplay feels good, sound and graphics are also great. Gives enough challenge to be a fun game for a while. Only thing I didn't really like are the intrusive ads
4 stars: Fun. I wish I could disable ads through an IAP, though. The music is pretty annoyin...