I enjoyed the ending... but that's about it. Again, like others have stated, it's pointless to upgrade your gun. The melee is unbalanced; just maxing out the melee and getting some health upgrades is enough to 1-shot almost every zombie. But really, the biggest problem is the LONG rounds later in the game; 280 zombies? And that last boss... again, I liked the ending, but really, the length of the battle was at least 2X longer than the 280 zombies.
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