Zombie Survival: Special Mission

Make your way through hordes of undead zombies, slaughter them all. Use your score to upgrade your weapons.
A total of 45 Levels are available. Good Luck!

Don?t forget to submit your final Score to the scoreboards.

CHEATS:
"stagger" - Gives you Full Ranks and extra speed (Can't submit Highscore)

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? Slaughter waves of zombies in this massacre. Use your SCORE to buy ammo, upgrades and health.
Press SPACE to skip Tutorial (Not the Disclaimer).

There is a total of 5 enemies and 26 Levels/Waves. I doubt anyone will ever manage to get so far, but give it a try.

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--Controls--
Movement: Right & Left Arrow Key
Shoot: Spacebar
Grenade: Shift