I've had so much fun. Ads can get a little annoying, but they aren't terrible, and definitely not the worst I've dealt with. I have had the game crash a couple of times, but it's hardly worth mentioning; otherwise, game play is smooth. Very fun, and plays almost like a dystopian version of flappy bird, but way more fun and with power ups. 5/5, 10/10, any possible way that I can say this is one of the funnest games I've played on mobile in a long time.