One of the best shooters I've played in along time, the graphics are beautiful the sound effects in the game are great the story is pretty good but a little short. Mutliplayer is even better! It's just all chaos bullets and grenades zipping past your head every second the maps are amazing and the gameplay is just pure fun.
The controls in this game feel different than most people are used to in games like cod4 for example and this seems to be what the majority of people who talk down about this game have problems with but I love the controls they have that heavy feeling to them you don't just turn and do a 360 degree spin like you do many other shooters but you get used to it just give it a chance.
Killzone 2 is a great game. The graphics are AMAZING and the gameplay is awesome. Online is what you will probably be playing a lot since it is great. It will take you a little while to start playing good in online. The campaign has a great story. The game has a variety of weapons. Overall, I reccomend that you rent this game.