After praising this game for ages, I think its time to review it.
Pros:
-Fun gameplay
-Awesome Story
-Best soundtrack ever.
-Interesting Characters
-Thick skin

Cons:
-VERY Hard (You'll break your R key before beating the game) (This can be a pro depending on your opinion)
-Large Levels (This wouldn't be an issue if you wouldn't died almost instantaneously)
-WINDOWS
-Too many long distances between enemies with guns... and they can see you when you can't see them
-Not the soundtrack
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If you love a challenge, hard games, or not getting lunch, I recommend it.
If you don't like hard gameplay, I still suggest the soundtrack, as its only 15$ for 42 songs