Zombie Facility: The 51st Test

Test Initiated. Objective: See how long subject survives. Starting in 3..2..1 You are a man, but to them you are just another subject. Well, no point in not doing as they say. See how long you can survive in this horde surival twin-stick shooter game. Controller is heavily recommended, altough it is playable with keyboard (but for the love of everything undead, for your own sake use a controller). There is also a bug on the main screen. If you press with a mouse, all menu buttons become unpressa...