Battle through 30 waves of zombie action with 6 unique bosses and a total of 15 upgrades each for all 8 guns. fight zombies accross 6 different stages with a total of 9 unique settings spanned across grasslands, cities, factories, and laboratories.in addition to this there are number of power ups unlocked by getting a large combo (by killing zombies quickly without losing pace). these include 2x g…show morebattle through 30 waves of zombie action with 6 unique bosses and a total of 15 upgrades each for all 8 guns. fight zombies accross 6 different stages with a total of 9 unique settings spanned across grasslands, cities, factories, and laboratories.in addition to this there are number of power ups unlocked by getting a large combo (by killing zombies quickly without losing pace). these include 2x gold, 2x power, 2x speed, and bonus gold.show less
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