This game is awesome, the only complaint is the start bottom should be placed below the Game Center link. I have an iPhone X and I have to adjust the grip every time I have to hit start. Also would like to have a low power version, i.e. all black screen with color border circle. It also need tactile feedback and increase the time needed to press the screen in order to get the full power by 1.5 times. This game is perfect to play on waiting lines.