Tips and Tricks guy
These are a few tips and tricks that i found while i was playing the game. When you are fighting the boss you need to stay under the thing that he is standing on. Sneak up behind him when he turns around and then shoot him with the best weapon that you have. I prefer to use the shotgun. While he is down there he will clear out all of the zombie guys or whatever they are down there with his gun. Then after he jumps back up you need to go back down and repeat the steps that i just listed. That is the easiest way that i found to beat him.