Anyone who likes video games and has seen the movies would really like this game, even if you haven't seen the movies, you'ed still like the fluid graphics and great detail. One of the best aspects of this game is the  sound! Everything from the motion detecter to the alien's sounds to the  predator's clicking type sound is EXACTLY like in the movies, I really  appriciate this as it adds to the overall experience. The graphics are  smooth and good looking. the Predators look a lot like in the movies and  the Aliens are so well done I had to pause the game and marvel at the  detail. When you first get this game do the marine mission if you are  looking to be scared out of your wits. In the game you can play as all  three different races(Predator,Alien,Colonel Marine)all with their own  missions plus bonus missions. The Alien Ai(artifical intelegence) is really  really good. You can be standing there minding your own business and then  an alien will drop down from the ceiling when you didn't even know it was  sneaking up on you. The only notable complaint is that the predators cloak  only actually keeps you unseen for about 7 seconds(it doesn't go off or  anything its just all of a sudden they can see you even if its up) Which of  course lead my theory that you should kill them in 7 seconds or less(with  your cloak up) if you wanna go undetected. Also staying true to the movies  the Predator is extreamly hard to kill, whether you are playing as him or  fighting him. And the aliens are brittle but really really really fast, and  yes you can climb all over the walls at top speed when you play the alien:)  The colonel marines are both brittle and slow, but they have BIG  weaponry(chain gun with 800 rounds anyone? Also the chain gun's sound is  really good and pumps the rounds out really fast. They also have a lot of  other weaponry).All in all this is the best FPS(first person shooter) to  date, especially if you are an Alien/Predator fan.