On the level outskirts any difficulty just enter the hallway shoot the grunt and crouch jump on the light, then crouch jump again on the building and turn left. You should see a hallway , walk to the end of the hallway and there are grenades and a skull. Once you pick up the skull your screen will flash and you will then not be able to see your cross hares on the screen, ammo, grenades, life, or motion sensor. have fun.
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February 12th, 2010 at 7:09 am
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