Minecraft wiki entry for Jungle_pyramid, associated text: Down the hall from the puzzle, there is another chest. There are two tripwire lines connected to dispensers with 2–14 arrows, hidden behind vines. The first tripwire is in the middle of the hallway and the second tripwire is around the corner in front of the chest. Walking over the tripwire triggers the dispenser attached to it. Breaking the tripwire with anything other than shears also triggers it.