Let me just sum it up for you - TWINE is the best looking, most mind-blowing first-person shooter I've seen on a console yet. The environments are massive and amazingly detailed. The character models look so realistic sometimes it's easy to forget you're playing a game. And the effects are awesome - enemy characters are hurled away from exploding barrels, catwalks collapse when their support chains are shot, and fully 3d mapped shells are ejected from your gun's chamber and are left exactly where they stopped rolling.
There wasn't a whole lot shown in the brief demo of TWINE PS2, as the development in the game is still extremely early. But what EA did show was a small section of their nuclear facility level, complete with plenty of exploding barrels, a few bad guys, and a good impression of how TWINE will eventually play.
The demo showed how enemies are already reacting to your presence - some enemies back away when you rush them, some use the level's cover in effective ways, and some go kamikaze and rush you with guns blazing. It was explained that the reactions all depend on exactly what is going on - your actions as bond dictate how the enemy AI will react to you.
Also demonstrated was how objects in the environment react to you. A bullet is capable of felling hanging lights, spinning chairs, and knocking guns from enemy hands. Everything in the environment is fully interactive - you can blow holes in walls, knock chairs out from under enemies, blow holes in pipes and watch steam fill the room - it's simply amazing. And just like GoldenEye, the game features a location-based damage - when shot in the leg enemies will stumble and fall, when shot in arm they'll drop their guard and clutch the wound - all of which makes the game that much more realistic.