Games worth playing for the ps2?

Shadow hearts and Shadow hearts 2: covenant. The first is really good, but the graphics is kind of old, the second one is possibly the best RPG released on PS2. There's also a third but it blows. Star Ocean 3: til the end of time is awesome, and so are the Suikoden games released on the console, 3,4 and 5. Suikoden tactics is kind of dull though. Romancing SaGa and Radiata stories have some awesome elements though they won't go those extra miles. The .hack games are special for us that play mmorpg, the first 4 have piss poor graphics, but the last 3 looks kind of nice. That's all RPG titles I could think of, as for action, devil may cry is great and if I recall correctly, the first castlevania game for PS2 was also fun.