Interesting twists + Standard First-person shooter = Pure fun WARNING! SPOILERS!
Gameplay: Fairly standard besides the fact that you can use the "Darkness powers" which include Darkness guns, Black Hole, Demon Arm, and one that allows you to crawl using the darkness that you see at the side of your screen. The guns are completely standard, which made me a bit disappointed. I ended up using the pistol for the majority of the game.
Graphics: Really good. However not up to Gears of War quality, very solid, and shows off what the PS3 standard should be, if not higher. The different textures of the surroundings should be a standard of all gaming.
Sound: Incredible voice-acting, I was in awe at how much they did in this game, and I couldn't believe that it was possible to put so much into a game. Plus, hearing two enemies talk about my location was a bit of a surprise. One enemy said, "I can't see him anymore!" while the other responded with, "Me neither."
Value: This game is well-made and will keep even the most demanding gamer entertained for a couple run-throughs. A reason to play this game is to figure out if there is an alternate ending. At the very end, the Darkness urges you to kill Paulie while Paulie begs for you to spare his life, making me wonder if I made the right choice by killing him and allowing the Darkness to take over my body.
Overall: This game is solid, and very well made. I only rented it, but I would be willing to buy it to get more of an idea of what happens in the game if you don't kill Paulie.