Zombie Crypt Game

Do not be bothered with the pixelated graphics...oh wait! This is Pixelgames.com! Why are you even bothered? So what is this game? Well, this game is all about moving two players as you use each other to open doors and switches and kill zombies. Yes, kill zombies, that is the only phrase you need to know.
Instructions: Move: WASD (P1) / Arrow keys (P2) Menu: Space