Origins: how to get napalm monkeys
You must have already gotten your thunder gun punches from the reward box and it has to be before round 19
Go to generator station 2 and there should be a table inside the tank station that holds 4 slabs with a fist mark on them(next to the exit towards the mud road). Hold Square to grab one of these stone slabs and once you see you have one, go to the church. There should be a holy water container next to the mystery box spawn and you must place that slab in there by holding square. Once you see your slab in the holy water, start punching away with your thunder-gun gloves. When you see no more zombie souls are collected, grab your stone slab by holding square. Now that you have your stone slab back, you should notice it being silver instead of being dirty. Take it back to where you found it(generator station 2 at the table) but there's a catch to this: you can't step on mud, otherwise, you will have to go back to the holy water container, put it back in and start over(all you have to do is put it back in and grab it. You don't have to do the zombie soul collection anymore.)Once you make it to the tank station at generator station 2, place the slab back in the table and collect more souls. Once you see it not taking any more souls, you should look at the table. The monkeys are there and all you have to do is grab them by holding square. The effect of these monkeys is more powerful than the average monkey. it draws the zombies towards it, like an ordinary monkey, but it signals the robots to fire at that exact spot giving you 200 points per kill.
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Edited: Dec 23 2013
Added by: Modder_Dude0_0 Oct 13th 2013, ID#5571