Dissappointed to see that it was only a FFA Death Match in the demo, but I still enjoyed it.
First I played as a Human, and with the motion detector it got pretty creepy. A human played pretty much like any FPS, and the detector did help a lot.
Then I played as an Alien. Very cool, but controls will take some time getting used to. The alien can climb everywhere, so every now and then I was suddenly running across the walls and upside down on the roof and just got confused and disoriented as hell. Many of my prey got away from me because I was ****ing aroind on the ceiling looking the wrong way.
But I had one excellent moment. I was an Alien, met a human player, was going to jump him, screwed up and he got in a couple of good shots, but I got away. The result was that this guy knew I was around somewhere, but not where. I crawled up on the ceiling, and was right above him, and then I pressed the Hiss button. All it does is let out a creepy Alien hiss that all nearby players can hear, and it was just hilarious watching him snapturn around constantly looking for me, but like in the movie, he did not look straight up. After messing with him with Hissing, I jumped down behind him, and got one of the possible one-button kills (you need to approach from behind and press X when prompted), which resulted in me grabbing him, and impaling him with my tail. Just epic. Then I got killed by a Predator...