A free program for Android, by Lemon Tart.

Flying Robot Car Simulator is a game where you have to fight with flying robots, which are very dangerous and intelligent. In this car-based robot game, you will have to shoot your enemies in order to survive. The enemies will be attacking you, and your mission is to destroy them one by one.

It is very easy to play, and the game is very intuitive and fun. The only thing you have to worry about is how you are going to last in this futuristic world.