Zombie Hunter is a top-down shooter with unique mechanics. You play as a zombie hunter for hire and your main goal is to protect your client. Your boss will pay you for each walker you shoot and sell you powerful guns once you get the money. Choose you guns wisely as they, alongside your ability to use them, will play a crucial role in whether you and your client can survive.
The main strength of Zombie Hunter inc is in its unique mechanics. Take a classic space side-scroller and cross it with Left4Dead and you get the game. It is the closest you can get to FPS while staying 2d side-scroller, because in Zombie Hunter in you can aim zombies in the head.