This, overall, is a great game. I've enjoyed playing it the last few weeks when I have nothing better to do. It's challenging and entertaining. Personally, I don't think there are a gross amount of ads compared to other games. It plays an add when I die, or if I close out of the app and reopen it. To me, that's not bad in comparison to some other games.
However, to the developers: I'm not sure if this is a bug for me or intentional: it will only allow you to die once before game over. I personally don't mind that. I think it makes the game more challenging and I enjoy the challenge to get a higher score. BUT... PLEASE FIX THIS SOMEHOW: it only allows you to get a certain score before it forces you to die. The more you play, the higher score it allows. For instance, when I started playing, I could get to a score of 800 before it stopped giving me moves. Now, after probably 3 weeks of consistent play, I have only been ALLOWED to get a score of 4000 (after dying once, watching an ad, and then game over once it stops giving me moves). To me, that's beyond frustrating. Let me try for as high of a score as I can get. If this isn't fixed soon, I'll be uninstalling the game due to the frustration, regardless of how fun it is.