A good game. Too easy.
Sadly I expected a hard tower defence type deal with this game. So I tried to play it safe, little did I know that all you need is a desert eagle bloodlust and overkill, and congrats, you won the game. That combination has given me over 10,000 xp per round at least, without any zombies touching the base at all. I have a save file now that has all the weapons, all the upgrades, 1000hp for me, and 40000hp for my base. So in conclusion, the game coulda been harder to complete and harder to unlock everything, but it still kept me occupied for atleast an hour, maybe 2.