an absolutely great game, the controls are very easy and a very pleasant atmosphere. you can also score coins in the game that's fine. but my 4 stars is at level 30 (I got to 38) is the challenges (3 each level) the skips each need 2000 coins plus the challenges where much harder and all you end up doing IS scoring coins for days and it became off-putting after building up 6000 open another level and even much more difficult demands to do it all again