Mutant Got Gunz?

From the introduction: Alright, dis here is fer da cherries in da gang. Dis is how it is, see? The Ancientz fought demselves a big war, and deyz built lotza gunz an’ even more bullitz. Den deyz set off da Biggun an’ da whole friggin’ worl’ change forevah. Now all dats left of ‘em are der gunz. Which is good fer us, ‘cause we gotz us some mutant bugz to kill. Now, letz see wat yer about...