SPOILERS!!!!!!!! haha... umm.. it's hard to explain. when you're walking through a small hallway, there will be like a plexiglass window to your right and you will see something sitting in a chair. then right next to the window there is a little red button, but it's not lit up or anything just press it. It lights up the thing in the chair which I won't tell u what it it is and air shoots at you and strobe lights go off.. it scared everybody right behind me haha