flap flap alien is a very simple game you can tap the screen to push the alien and find the way out of the pipes by using it. Its so compatible. This app work with iphone as well as ipad. Here you can find the details... https://itunes.apple.com/us/app/flap-flap-alien-free-fun-for/id820246036?ls=1&mt=8&at=10l3Vy