I read through some reviews and people complain about the ads...play on airplane mode/turn off data. Problem solved! Aside from ads, the concept is great but execution...not so much. As slow as money is earned it takes too long for enough to unlock states and power ups and upgrade. Also, with as slow as that is I thought maybe there would be money collected while away...nope! Unfortunately that's why I rated 1 star and uninstalled. Speed up gameplay and have offline earnings, 4 or 5 star game