Here´s some i´ve bought that i really enjoy:
-FF X and XII (X has a great story and XII has an interesting combat system)
-Devil May Cry 3(if you played DMC you have to play this...so much fun)
-Sly Coopern (my favourite platformer for the ps2)
-Gran Turismo 3 and 4 (racing on the ps2 doesnt get any better than this)
-Silent Hill 2 and 3(2 is a masterpiece, 3 is great if you played 1)
-Tekken Tag Tournament(I just love this game...tekken 5 has better graphics, but the tag system makes this one a keeper)
-SSX (screw Tony Hawk, this game rocks)
-Mortal Kombat Armaggeddon (the Kreate-A-Fighter mode is awesome)
-FF X and XII (X has a great story and XII has an interesting combat system)
-Devil May Cry 3(if you played DMC you have to play this...so much fun)
-Sly Coopern (my favourite platformer for the ps2)
-Gran Turismo 3 and 4 (racing on the ps2 doesnt get any better than this)
-Silent Hill 2 and 3(2 is a masterpiece, 3 is great if you played 1)
-Tekken Tag Tournament(I just love this game...tekken 5 has better graphics, but the tag system makes this one a keeper)
-SSX (screw Tony Hawk, this game rocks)
-Mortal Kombat Armaggeddon (the Kreate-A-Fighter mode is awesome)