| Oekaki Puzzle 5 (SuperLite 1500 Series)
| 4944076001812 | SLPM-86800 | 2001-4-26
|
| Otenami Haiken (SuperLite Gold Series)
| 4944076001874 | SLPM-86819 | 2001-6-21
|
| Oekaki Puzzle Shuu (SuperLite 3in1 Series)
| 4944076002109 | SLPM-86955 | 2002-1-24
|
| Option Tuning Car Battle Spec-R (SuperLite 1500)
| 4944076002642 | SLPM-87164 | 2002-11-7
|
| Omoide ni Kawaru-Kun: Memories Off (SuperLite 2000 Adventure)
| 4944076003625 | SLPM-65601 | 2004-6-3
|
| Osawari Tantei: Ozawa Rina
| 4944076004035 | NTR-P-AOZJ | 2006-4-13
|
| Operation Darkness
| 4944076004226 | X4X-00002 | 2007-10-11
|
| Osawari Tantei: Ozawa Rina - Season 2 1/2: Rina wa Mita! Iya, Mite nai
| 4944076004295 | NTR-P-AOJJ | 2007-5-24
|
| Oni Rei: Fukkatsu (Pandora Max Series #6)
| 4945640000064 | SLPS-03106 | 2001-3-22
|
| Onegai Monster
| 4948681000376 | NUS-NOMJ-JPN | 1999-4-9
|
| Omega Boost
| 4948872100205 | SCPS-10020 | 1999-4-22
|
| Ore no Shikabane o Koete Yuke
| 4948872100748 | SCPS-10074 | 1999-6-17
|
| Ore no Ryouri
| 4948872100991 | SCPS-10099 | 1999-9-9
|
| Operator's Side (Microphone Set)
| 4948872150385 | SCPS-15038 | 2003-1-30
|
| Ore no Shikabane o Koete Yuke (Playstation the Best)
| 4948872911986 | SCPS-91198 | 2000-7-6
|
| Ore no Ryouri (PlayStation the Best)
| 4948872912075 | SCPS-91207 | 2000-8-24
|
| Ore no Ryouri (PSOne Books)
| 4948872913232 | SCPS-91323 | 2002-3-28
|
| Ore no Shikabane o Koete Yuke (PSOne Books)
| 4948872913300 | SCPS-91330 | 2004-10-28
|
| Otogi
| 4949776302023 | | 2002-12-12
|
| Otogi: Hyakki Toubatsu Emaki (Special Pack)
| 4949776302047 | | 2003-12-25
|
| Otogi (Platinum Collection)
| 4949776302078 | | 2004-9-2
|
| Olympic Soccer
| 4953507961076 | SLPS-00523 | 1996-11-8
|
| Otona no Asobi: Nichibutsu Collection 2000
| 4960641090203 | SLPS-02459 | 1999-12-2
|
| Oyaku de Asoberu DS Ehon: Ukkari Penelope
| 4960677120059 | NTR-P-YURJ | 2008-4-24
|
| One Two Smash: Tanoshii Tennis
| 4961508006177 | SLPS-02585 | 2000-2-24
|
| Ochanoma Battle
| 4961818000193 | SLPM-86681 | 2000-12-14
|
| OverBlood: 3D Active Adventure
| 4967652101218 | SLPS-00392 | 1996-8-2
|
| OverBlood: 3D Active Adventure (PlayStation the Best)
| 4967652101386 | SLPS-91032 | 1997-6-27
|
| OverBlood 2
| 4967652101409 | SLPS-01261-2 | 1998-7-23
|
| OverBlood 2 (PlayStation the Best)
| 4967652101492 | SLPS-91140-1 | 1999-6-3
|
| Oshare Princess
| 4967996200233 | AGB-AOPJ-JPN | 2002-5-24
|
| Oshare Princess 2 + Doubutsu Kyaranabi Uranai
| 4967996200318 | AGB-AO2J-JPN | 2002-12-20
|
| Oshare Princess 3
| 4967996200424 | AGB-BO3J-JPN | 2004-4-17
|
| Oshare Princess DS: Oshare ni Koishite!
| 4967996200615 | NTR-P-AO4J | 2006-12-14
|
| Oshare Princess DS: Oshare ni Koi Shite 2
| 4967996200646 | NTR-P-YO4J | 2008-4-26
|
| Oshare Princess 5
| 4967996205054 | AGB-BO5J-JPN | 2005-6-30
|
| Othello
| 4972825257821 | KWD-OTH | 1986-10-13
|
| Oyaji Hunter Mahjong
| 4973934234512 | IMP-SF0703 | 1995-7-14
|
| OutRun - Sega Ages
| 4974365091101 | GS-9110 | 1996-9-20
|
| Ookami Ichio Funtouki: Sakura Taisen Kayou Show -
| 4974365500573 | HDR-0057 | 2000-2-24
|
| OutTrigger
| 4974365501181 | HDR-0118 | 2001-8-2
|
| OutRun 2 SP: Outrun2 Special Tours (Limited Edition)
| 4974365831813 | SLPM-66628 | 2007-2-8
|
| OutRun2
| 4974365880163 | V3N-00001 | 2004-10-1
|
| OutRun2 (Limited Edition)
| 4974365880163 | | 2005-1-27
|
| Ore no Dungeon
| 4974365900236 | ULJM-05167 | 2006-11-30
|
| Oshare Majo Love and Berry (DS Collection)
| 4974365910198 | NTR-P-ALBJ | 2006-11-22
|
| Onsei Kanjou Sokuteiki: Kokoro Scan
| 4974365910327 | NTR-P-YC6J | 2007-8-16
|
| Oshiri Kajiri Mushi no Rhythm Lesson DS: Kawai Ongaku Kyoushitsu Kanshuu
| 4974365910341 | NTR-P-YODJ | 2008-4-10
|
| Othello World
| 4975430040116 | SHVC-TO | 1992-4-5
|
| Othello World II: Yume to Michi e no Chousen
| 4975430040291 | SLPS-00136 | 1995-12-8
|