Use the following strategy to defeat the Episode 1 Boss. There are two tripwires inside the room with the Boss. One closes the door and the other brings the Boss. When you walk in, turn around so that you are facing the door. When the door starts closing, use steroids to run past it. You can now open the door and it won'tclose. Trigger the Boss and run behind the shelves for cover. Hopefully he will follow you out the door. Duck down and shoot his head. He is so stupid to run away.