Damn! I love this game even after more than ten times playing!
The first brilliant feature of the game is its storyline. It's very sensible and acceptable and you really get along with it while playing and that also keeps you going on. You feel that the fate of the world is in your hands so you've gotta run on and on. The conversations have got enough humour which sometimes are so funny.
Next feature is the bright and smooth graphic with an attractive background which makes a lovely envnmnt for you during the game. You'll enjoy surfing around the places and finding things and kicking the enemies' arses! You don't have to kill yourself looking around with a flashlight on and losing the great graphics around you. You'll feel free increasing resolution as much as you like with no special chopping-frames problem, especially if you've got a 128 MB VRAM adapter. In addition, I'd mention weapons and gears design. I've seen one of the most accurate weapons in this game. My favourite weapon was the 0.38 revolver (It's mentioned that's the Cate's favourite weapon too) Although it's not as accurate as others and you'll be given the chance of using it only in a few missions (Of course you may always pick it up in your equipment selection menu but you'll run out of ammo during the most levels because there won't be any chance to pick up ammo for it) but it gives you a good firepower. The other powerful (and rare) gun is AK rifle that can equipped with normal FMJ or powerful phosphorous rounds. The gears are also interesting and sometimes funny like when you wanna knock an enemy out with sprays.
The sound and the music in this game is fascinating, indeed. One of the best tracks I've ever heard.
Only 2 levels sounds boring to me. One was the level in which you'll go underwater to investigate the sunken ship(Thank Godness it won't last long). The other one is the outer space mission which unfortunately it's damn long.
In my opinion, NOLF1 is better than NOLF2 as the second one is mostly based on stealth actions and because of that it's got a slow theme and it's kind of boring, indeed.