This glitch is pretty simple. It allows for a player to hold mor than two weapons in the nazi zombies shi no numa. It could potentialy get the player every weapon in the game to be held. You first have to move the mystery box to the houses on the outskirts where the perks are. The glitch only works in fish hut, doctors quarters, and sometimes works in storage if it is done right. Once box is moved there the glitch can happen as long as the player hasn't taken the perk yet. Use the mystery box and then wait by the perk machine until you see the weapon. If it is a teddy bear or molotovs the glitch won't work. Now as you see the weapon take the bottle and as you are drinking it switch out for the weapon. You should have a third gun. If you are with several people and you have the points, I suggest doing it again. I have seen it done up to 6 or 7 weapons and it makes the game a lot more fun and easier. As long as the glitch doesn't get patched up enjoy it.