Duo is an amazing physics-based, action game. The game play is very simple and fun. You just have to tap on the screen to get yourself out of the way. However, it is a little more than that. The gameplay is based on physics, so there is a certain amount of thought that has to be put in to make sure that the gameplay works well on a mobile phone.

Duo is also a very good time killer. The game play is pretty simple, so it doesn't take too much of your time.

It's free to download and play on Android.