What are some ps2 games that are good?

In my opinion, every Metal Gear Solid game (2 & 3) on the PS2 was good. Ratchet and Clank 3 is an excellent game, and Deadlock was horrendous. There's Okami, the Disgaea games, and also Silent Hill 2. Resident Evil 4's on PS2 I think.. Shadow of the Colossus is truly one of the best games I've played on a PS2, although I wouldn't get it now seeing as how there's an HD release coming soon. There's also the Devil May Cry games, although I'd skip 2.