So according to xbox.com, there is a 51st achievement worth 100 points, and it is a sectret, and I was wondering if any one knew how to obtain this achievement that doesn't appear on the list...
Comment:(Feb 10 2010) nevermind, i found it searching google.
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Have the free DLC Ryan Industries Plasmids and Tonics. All you have to do is beat the game on Hard without using a Vita-Chamber. Good Luck.
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