When your on the second level and looking for a way to get pass
the gate there is a hole there crawl through it then there's
another gate go straight through it and climb and get of on that
part of the wall fall down that part of the wall then when your
over there climb the wall until you get on that part of the gate
Press up and x when your on top and do the same thing on the other
gate until you get on the other part of the wall then press y for
night vision you will see to white things in front of you go step
on theme you will fall and then jump back up by pressing L1 at the
right time then when your up there go straight and the screen will
change.