Very good game. most people who give this game a bad review is because of progress loss. Well they are the idiots who never saved their data! You need to collect ten coins from the main levels to do so, but it is fair for that. I have been playing this game for about a year now and I beat all but 4 levels of the main game with 3 coins in most of them. I have saved my data and played it on multiple devices, no problem. Great game, I do love it. I am still wondering if 2.2 is coming out though...