This game gets one star because the actual game is fine. You have to watch 2 ads after EVERY level, which wouldn't so bad but they force open your app stores and brower. I've hit the 15k coin price 3x and the 7.5k one and I haven't gotten a single coin. I messaged support with screenshots and nothing so far. The first time I hit 15k I thought I was imagining it so after that I take screenshots after every level. I definitely noticed that my money slowed once I hit the $6 mark.