I really got the hang of the game so fast that I can't help but play it for hours!!

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The gameplay of this one is just too good to compare to other zombie games out there.

I love how pleasing the UI is, and that it is easy to go around the game.

Not to mention that it feels like I'm playing a super secret agent game when I'm sneaking in with all those zombies around.

I got the hang of it, and I would literally play the game for hours.