In your opinions, what are the rarest and hardest to find ps2 games?
Here are the games that I own that I think are a bit harder to find than all others:

Shadow Hearts
Theme Park: Roller Coaster
OKAGE: Shadow King
Klonoa 2
Harvest Moon: Save the Homeland
Orphen

Im still trying to find Rez, one of the rarest US ps2 games right now...