A perfect game (if you don't count the new main character).
Graphics: 9
Sound: 9
Replay: 8.5
The game in itself is just super awesome. The gameplay, storyline, graphics and sound are just perfect.
The gameplay is just like in the other Metal Gear Solid games with much of the same controls and actions and the graphics are extremely good for a Playstation 2 game. The storyline is very original and very interesting with full of plot twists.
But I would not fully recommend it to a diehard Metal Gear Solid fan, because of the new main character called Raiden. He ruins the Metal Gear Solid vibe. That is the only sucky part of the whole game in my opinion. If it was not for him, I would give this game a 9.5 or even a 10.
But fortunately, our hero Snake does play a role in the game, but I will not get too much into that because that is a spoiler. So, just go and buy the game, ignore the new character and enjoy it.