MGS2, was a great title, and Kojima-san's first foray on PS2 for the series. It was excellent, although a weird story.
Once you get past that the gameplay is the highpoint here. It is tighter than ever, with engaging bosses, that are in true konami fashion among the best you'll ever find, verging on supernatural but not quite (another staple of the series).
The goofy thing is the story line becomes anti-climactis towards the end, and on occasion leads the player to believe their PS2 is broken. Curious, yeah, but we should expect that from Kojima-san.
Bottom line this game is -still- a steal at 12-15$ dollars, and it's everywhere. If you don't have it, go get it for your library.