The X Mansion/Safe Room is the safest room in the mansion (hence it's name). The room is far below the mansion and is a round white compact room with benches on either side. The room protects from anything from fire's to Cyclops without his glasses on. The room can be shot out into the lake and rises from there to get you to safety. To do this, all you need to do is pull the green lever. Only do this in a real emergency.