This game is one of the only games to truly terrify me. (the other being silent hill. check my review on that in upcoming weeks!)  The graphics are just right for this type of game, although they could have been better.  The control is muddy, although never cumbersome.  the weapons are alright, but upgrading them is a hoot.  I wish that you could upgrade more weapons, though.  An upgraded rocket launcher that could blow through doors, now that would be really...' cool!!!  Oh well, If I want to do that, I should go play Red Faction.  The zombies are as dumb as oxes, but the lickers and dogs and the birds (THEY ARE COMING TO GET ME!!!!) are fairly intelligent.  avoid those at all costs, if you know what is good fer ya.  adios!