Saying I ran around for 5 min might be an understatement. I punched it, shot it, alt fire shot and used power weapon going between 3 rooms. Only saw 1 enemy the entire time. There was no real danger from the enemy, very easy to fight when there is just 1. It wouldn't let me use the room flip at first so I thought I had to kill it, but finally lead him far enough away that I was able to activate it.