SLUS-20777 Obscure
SLUS-21709 Obscure - The Aftermath
SLUS-21577 Odin Sphere
SCUS-97129 Okage - Shadow King
SLUS-21115 Okami
SLUS-21435 One Piece - Grand Adventure
SLUS-20975 One Piece - Grand Battle
SLUS-21364 One Piece - Pirates Carnival
SLUS-20064 Oni
SLUS-20710 Onimusha - Blade Warriors
SLUS-21180 Onimusha - Dawn of Dreams [Disc 1]
SLUS-21362 Onimusha - Dawn of Dreams [Disc 2]
SLUS-20018 Onimusha - Warlords
SLUS-20393 Onimusha 2 - Samurai's Destiny
SLUS-20694 Onimusha 3 - Demon Siege
PBPX-95248 Online Start-Up Disc 4.0
SCUS-97357 Online Start-Up Disc 4.0
SLUS-21467 Open Season
SLUS-20011 Orphen - Scion of Sorcery
SLUS-21030 Outlaw Golf 2
SLUS-21190 Outlaw Tennis
SLUS-21049 Outlaw Volleyball Remixed
SLUS-21274 Outrun 2006 - Coast 2 Coast
SLUS-21300 Over the Hedge