Sorry to hear that! Do you have any feedback about what you found confusing or didn't understand? I won't try to change your mind or your rating, but I'd love to learn what I can do better as a designer.
I have replayed, and I got some coins and bought things. But your UI does not show me the game behind of that.
Yes, I have changed my rate. But attention that user interface is my only interaction way, and it should be understandable.
Your game core is awesome. I got it after the second play.