You can use these. I won't tell anyone.Published (or updated) in January 16th, 2012.
Here we have the cheat codes of the Zombie Survival: Outbreak game. Each code enables a different feature that can help you to beat the zombies in this Metal Slug-themed zombie gore fest. Just click on “cheats” on the main menu and type in the code you want.
Please note that if you use the cheats, you won’t be able to submit your high score in this cool Flash game to the scoreboards:
stagger– Gives you full ranks and 99 grenades;
aimbot– Always score a head shot;
mekka– Start with the Mech Suit;
mecha– Start with the NEO-Mech Suit.
Down below, we have a video that shows each cheat code and demonstrates what effect enabled by them. It was made and published by our partners at Gaming Room:
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