All Zombies Must Die

Gemcheats There are 7 Bronze Trophies, 4 Silver Trophies, and 1 Gold Trophy.
A Legion of Zombies (Silver)
Kill 500 zombies in one level
Back with the X (Bronze)
Witness Rachel joining the group
Big Brain Brian (Bronze)
Witness Brain joining the group
Can't touch this (Silver)
Complete a Base quest without taking any damage
Fists of Fury (Bronze)
Kill a mutant with your fists
Getting to know each other (Silver)
Complete all character quests
Kill a zombie (Bronze)
Kill a zombie
Master Craftsman (Bronze)
Fully upgrade a weapon with anystatus effect
The Collector (Silver)
Complete 'Dev Card Hunt!'
Thought this was a Zombie Game? (Bronze)
Witness Luxo joining the group
Touch Base (Gold)
Complete 'Return to the Military Base'
Watch this! (Bronze)
Use your first Smart Bomb Download to complete cheats.