Decent concept. My 14 month old loves playing it. Biggest problem: the back button is massive and simple to press. So he always tries pressing it, exiting every game he is trying to play. This seems like a huge design flaw. Maybe make the back button more difficult to use or hide it entirely. Second problem: on Android, any time he swipes to drag items from the top of the screen, it opens the android menu, allowing him to exit the game and start getting into the phone and other apps.