I never played the video game but I still enjoyed this feature.  If you are averse to heavy doses of blood (dogs with skin gone - you get the picture), this is not for you.  I enjoyed the story and it was quite a thrill ride.  In this day and age of corporate greed and coruption, the story fit in nicely.  We don't want those corporations getting out of control, do we?  Last warning - like Blade and Blade II - lots of gore.