The game is a funny, little pastime with chic Grafilk and a pleasant increasing difficulty. Just the right so if you're in the waiting room of the doctor wartenb needs or on the bus on the road. The app works fine on the Samsung Galaxy S4 Mini with Android 4.2.2. - There is no lag or delay, the game responds instantly to input. I was lucky enough to get the app for free, but the required 0.89 Euro are justified in any case.