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Tower of Fuck (online)

Everyone starts off with the grappling gun and must make their way to the top of this odd tower where they find a gun that can shoot through walls. What you do from here is up to you, but if you make your way through the glass panes (crouch stomp down the middle) and shoot through the wall to get to the portal you can get to the top of the map where there are ever populating gifts.

Or just shoot through a wall and grapple up there. Whatever.