Control Setup Help

I wanted to make a top down shooter, but cant figure out the controls. I want controls similar to Revolt and Guerilla Bob. Is there a prefab or script i can use to achieve this? if not how can i achieve this sort of setup?

-Thanks!

I don't understand exactly what you want but I guess you want is to configure the Input Buttons.

http://unity3d.com/support/documentation/Manual/Input.html