Region | Title | System | Version | Edition | Languages | Serial | Status |
| Oogami Ichirou Funtou-ki: Sakura Taisen Kayou Show "Beni Tokage" yori (Disc 2) 大神一郎奮闘記 ~サクラ大戦歌謡ショウ「紅蜥蜴」より~ | DC | 1.000 | Original | | HDR-0057 | |
| Outtrigger アウトトリガー | DC | 1.008 | Original | | HDR-0118 | |
| Outlast: A Reading for Information Game | PC | | Original | | HH824 | |
| Oto to E no Deru Eigo Jisho No. 1: Start with Words 音と絵の出る英語辞書 No.1 「Start with Words」 | FMT | | Original, Rerelease | | HMA-217 | |
| Oshare Cooking おしゃれクッキング | FMT | Rev A | Original | | HMA-267A | |
| Oshare Cooking II おしゃれクッキングⅡ | FMT | Rev B | Original | | HMA-267B | |
| Operation Wolf オペレーション・ウルフ | FMT | 1.00 | Ving Vol. 3 | | HMB-126 | |
| Oto to E no Deru Eigo Jisho No. 2: English in Dream 音と絵の出る英語辞書 No.2 「English in Dream」 | FMT | | Original | | HMB-129 | |
| Oto to E no Deru Eigo Jisho No. 3: Nandemo Illust Eigo Jiten 音と絵の出る英語辞書 No.3 「なんでもいらすとえいごじてん」 | FMT | | Original | | HMB-131 | |
| Oto to E no Deru Eigo Jisho No. 4: Nandemo Illust Eigo Jiten Part 2 音と絵の出る英語辞書 No.4 「なんでもいらすとえいごじてん Part 2」 | FMT | | Original | | HMB-170 | |
| Okashina Mother Goose: Mixed-Up Mother Goose おかしなマザー・グース | FMT | | Original | | HMB-235 | |
| Obaachan no Chiebukuro おばあちゃんの知恵袋 | FMT | | Original | | HMC-169 | |
| Oddworld: Abe's Oddysee | PC | 2.0 | Original | | IB2G-ODD5 | |
| Oddworld: L'Odyssée d'Abe | PC | | Original | | IB2G-ODDF5 | |
| Oddworld: Abe's Oddysee | PC | 2.0 | Original | | IB2G-ODDG5 | |
| Oddworld: Abe's Oddysee | PC | 2.0 | Covermount | | IB2G-ODDI5 | |
| Ore no Yome: Anata dake no Hanayome 俺の嫁 ~あなただけの花嫁~ | XBOX360 | | Original | | IF-2008 | |
| Off-Road: Wide Open Test Drive Off-Road: Wide Open | XBOX | | Original | | IG-001 | |
| Official Sega Dreamcast Magazine Vol. 2: November 1999 | DC | 1.020 | | | IGN1 | |
| Official Sega Dreamcast Magazine Vol. 10: January 2001 | DC | 1.200 | | | IGN10 | |
| Official Sega Dreamcast Magazine Vol. 3: January 2000 | DC | 1.010 | | | IGN2 | |
| Official Sega Dreamcast Magazine Vol. 4: March 2000 | DC | 1.020 | | | IGN3 | |
| Official Sega Dreamcast Magazine Vol. 6: July 2000 | DC | 1.050 | | | IGN6 | |
| Official Sega Dreamcast Magazine Vol. 7: September 2000 | DC | 1.020 | | | IGN7 | |
| Official Sega Dreamcast Magazine Vol. 8: November 2000 | DC | 1.020 | | | IGN8 | |
| Official Sega Dreamcast Magazine Vol. 9: December 2000 | DC | 1.000 | | | IGN9 | |
| Outdoor Wander Land アウトドアワンダーランド | MAC | | Original | | ILL-940715 | |
| Official Xbox Starter Pack 2004 | XBOX | | Original | | IM-001 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2002 | XBOX | | Original | | IM-001 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2002 | XBOX | | Original | | IM-002 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 12/2002 | XBOX | | Original | | IM-003 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 01/2003 | XBOX | | Original | | IM-012 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 02/2003 | XBOX | | Original | | IM-013 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 04/2003 | XBOX | | Original | | IM-015 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 06/2003 | XBOX | | Original | | IM-017 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 07/2003 | XBOX | | Original | | IM-018 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2003 | XBOX | | Original | | IM-019 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 10/2003 | XBOX | | Original | | IM-021 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2003 | XBOX | | Original | | IM-022 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 01/2004 | XBOX | | Original | | IM-024 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 06/2004 | XBOX | | Original | | IM-029 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 07/2004 | XBOX | | Original | | IM-030 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 09/2004 | XBOX | | Original | | IM-032 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 10/2004 | XBOX | | Original | | IM-034 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2004 | XBOX | | Original | | IM-035 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 03/2005 | XBOX | | Original | | IM-038 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 04/2005 | XBOX | | Original | | IM-039 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 05/2005 | XBOX | | Original | | IM-040 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 06/2005 | XBOX | | Original | | IM-041 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 07/2005 | XBOX | | Original | | IM-042 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2005 | XBOX | | Original | | IM-043 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 09/2005 | XBOX | | Original | | IM-044 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 10/2005 | XBOX | | Original | | IM-045 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2005 | XBOX | | Original | | IM-046 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 12/2005 | XBOX | | Original | | IM-048 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 01/2006 | XBOX | | Original | | IM-049 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 100 | XBOX360 | | | | IM-2146 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 101 | XBOX360 | | | | IM-2147 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 103 | XBOX360 | | | | IM-2149 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 104 | XBOX360 | | | | IM-2150 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 105 | XBOX360 | | | | IM-2151 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 106 | XBOX360 | | | | IM-2152 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 107 | XBOX360 | | | | IM-2153 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 108 | XBOX360 | | | | IM-2154 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 109 | XBOX360 | | | | IM-2155 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 110 | XBOX360 | | | | IM-2156 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 111 | XBOX360 | | | | IM-2157 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 112 | XBOX360 | | | | IM-2159 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2006 | XBOX | | Original | | IM-226 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 09/2006 | XBOX | | Original | | IM-226 | |
| Oyaji Hunter Mahjong おやじハンター・マージャン | 3DO | | Original, Sample | | IMP-SF0703 | |
| Obsidian (Disc 1) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 2) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 3) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 4) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 5) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 2) オブシディアン | PC | | Original | | INR-1002 | |
| Obsidian (Disc 3) オブシディアン | PC | | Original | | INR-1002 | |
| Obsidian (Disc 4) オブシディアン | PC | | Original | | INR-1002 | |
| Obsidian (Disc 5) オブシディアン | PC | | Original | | INR-1002 | |
| Obsidian (Disc 1) オブシディアン | PC | | Original | | INR-1003 | |
| Obsidian (Disc 1) オブシディアン | PC | 1.0 | Original | | INR-1003 | |
| Obsidian (Disc 2) オブシディアン | PC | 1.0 | Original | | INR-1003 | |
| Obsidian (Disc 3) オブシディアン | PC | 1.0 | Original | | INR-1003 | |
| Obsidian (Disc 4) オブシディアン | PC | 1.0 | Original | | INR-1003 | |
| Obsidian (Disc 5) オブシディアン | PC | 1.0 | Original | | INR-1003 | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.004 | Game of the Year Edition, Game of the Year Edition (BestSeller Series), Game of the Year Edition (Covermount) | | JCPL11, S0026179, S0026696 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition (BestSeller Series) | | JCPL11, S0026695 | |
| Otomedius Gorgeous! オトメディウス ゴージャス! | XBOX360 | | Original | | KN-2030 | |
| Operation WinBack 2: Project Poseidon | XBOX | | Original | | KO-008 | |
| Omerta: City of Gangsters | XBOX360 | | Original | | KY-2021 | |
| One Two Animal: Let's Animal Series 1 ワンツーあにまる レッツあにまるシリーズ1 | PC | | Original | | LAOA-96101 | |
| Online Connection CD: For the PlayStation Game Console | PSX | | Beta Trial Version 1.0 | | LSP-150500 … | |
| ObsCure | XBOX | | Original | | MI-009 | |
| ObsCure | XBOX | | Original | | MI-009 | |
| ObsCure | XBOX | | Original | | MI-009 | |
| ObsCure | XBOX | | Original | | MI-009 | |
| Outtrigger | DC | 1.001 | Original | | MK-51102-50 | |
| Oddworld: Abe's Exoddus (Play Disc) | PC | 2.0 | Budget, Covermount | | MMICDR 5280 | |
| Oddworld: Abe's Exoddus (Installatie Disk) | PC | 2.0 | Budget | | MMICDR 5280 | |
| Orion Burger | PC | | Abenteuer Doppelpack: Premier Collection | | MOBRLPGE72 | |
| Operation Flashpoint: Dragon Rising | PC | 1.0 | Original | | MOFP2CDEU00 | |
| Operation Flashpoint: Dragon Rising | PC | | Original | | MOFP2CDEU00 | |
| Operation Flashpoint: Red River | PC | 1.0 | Original | | MOFP3CDEU00 | |
| Operation Flashpoint: Red River | PC | | Original | | MOFP3CDUS00 | |
| Operation Flashpoint: Resistance | PC | 1.75 | Original | | MOFRCDEU00 | |
| Operation Flashpoint: Resistance | PC | 1.75 | Original | | MOFRCDUS00 | |
| Operation Flashpoint: Gold Upgrade | PC | 1.30 | Original, Gold Edition | | MOFUCDEU00, MOFUCDUS00 | |
| Operation Flashpoint: Gold Upgrade | PC | 1.30 | Original | | MOFUCDUS00 | |
| Operation Flashpoint: Cold War Crisis | PC | 1.0 | Original | | MOPFCDEU00 | |
| Operation Flashpoint: Cold War Crisis | PC | 1.0 | Original, Gold Edition | | MOPFCDEU00 | |
| Operation Flashpoint: Cold War Crisis | PC | 1.0 | Original | | MOPFCDUS00 | |
| Overlord | PC | | Original | | MOVL1CDEU00 | |
| Overlord | PC | 1.0 | Original | | MOVL1CDFC00 | |
| Overlord | PC | 1.2 | Original | | MOVL1CDPL00 (DVD), POVL1CDPL03 (Box) | |
| Overlord II | PC | | Original | | MOVL2CDEU00 | |
| Overlord II | PC | 1.0 | Original | | MOVL2CDUS00 | |
| Overlord: Raising Hell | PC | 1.3 | Original | | MOVLRCDEU00 | |
| Oscar Wilde's The Selfish Giant | PC | 2.10 | Original | | MQ 13-004-144 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original, Classics | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Platinum Hits | | MS-001 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 1) | PC | 1.3 | The Learning Company | | OAE744BE-CD1 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 2) | PC | 1.3 | The Learning Company | | OAE744BE-CD2 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 3) | PC | 1.3 | The Learning Company | | OAE744BE-CD3 | |
| Odyssey: The Search for Ulysses (Disc 1) | PC | | Original | | ODY-ENCD1 | |
| Odyssey: The Search for Ulysses (Disc 2) | PC | | Original | | ODY-ENCD2 | |
| Odyssee: Auf der Suche nach Odysseus (Disc 1) | PC | | Original | | ODY-GERCD1 | |
| Odyssee: Auf der Suche nach Odysseus (Disc 2) | PC | | Original | | ODY-GERCD2 | |
| Odissea: Sulle tracce di Ulisse (Disc 1) | PC | | Original | | ODY-ITA-P01 | |
| Odissea: Sulle tracce di Ulisse (Disc 2) | PC | | Original | | ODY-ITA-P02 | |
| Offroad Off-Road Redneck Racing | PC | | Original | | OFFPCCDML | |
| Oh!PC 1998-nen 8-gatsu-gou Tokubetsu Furoku CD-ROM Oh!PC 1998年 8月号 特別付録CD-ROM | PC | | | | OHPC-9808 | |
| Oh!PC 1998-nen 9-gatsu-gou Tokubetsu Furoku CD-ROM Oh!PC 1998年 9月号 特別付録CDーROM | PC | | | | OHPC-9809 | |
| The Omega Stone: Secrets of the Ancients (Disc 1) | PC | | Original | | OMSTENCD1 | |
| The Omega Stone: Secrets of the Ancients (Disc 2) | PC | | Original | | OMSTENCD2 | |
| The Omega Stone: Secrets of the Ancients (Disc 3) | PC | | Original | | OMSTENCD3 | |
| The Omega Stone: Secrets of the Ancients (Disc 4) | PC | | Original | | OMSTENCD4 | |
| Only One 2: Bijin Casino Dealer Hitomi: Sei no Roulette オンリーワン2 美人カジノディーラー瞳 性のルーレット | PC | | Original | | ON2-HITO | |
| Only One 2: Naomi: Ai no Inori ga Todoku Toki オンリーワン2 なおみ 愛の祈りが届く時 | PC | 1.0.0.1 | Original | | ON2-NAO | |
| Operation Neptune | PC | 1.22 | Original | | ONT744CE-CD | |
| Operation Neptune | PC | 1.23 | The ClueFinders: Math Ages 9-12 | | ONT744EE-CD | |
| Operation Neptun | PC | 1.2 | Original | | ONT844AW-CD | |
| Operation: Surgery Has Never Been so Silly! | PC | | Replay Kids | | OPERPCREGB/A | |
| The Oregon Trail 3rd Edition: Pioneer Adventures | PC | 1.0 | DVD-ROM | | ORG811AE-DVD | |
| The Oregon Trail | PC | 1.22 | Smart Saver | | ORT844AE-CD | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 1) | PC | 1.0 | Original | | OTA744AE-CD1 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 2) | PC | | Original | | OTA744AE-CD2 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 3) | PC | | Original | | OTA744AE-CD3 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 3) | PC | | Original | | OTA744AE-CD3 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 1) | PC | 1.2 | Rerelease | | OTA744BE-CD1 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 2) | PC | 1.2 | Original | | OTA744BE-CD2 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 3) | PC | 1.2 | Original | | OTA744BE-CD3 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 1) | PC | 1.2 | Original | | OTA744CE-CD1 | |
| The Oregon Trail 4th Edition (Disc 1) | PC | 1 | Original | | OTF744AE-CD1 | |
| The Oregon Trail 4th Edition (Disc 2) | PC | 1 | Original | | OTF744AE-CD2 | |
| The Oregon Trail 4th Edition (Disc 3) | PC | 1 | Original | | OTF744AE-CD3 | |
| The Oregon Trail 4th Edition (Disc 1) | PC | 1.1 | Rerelease | | OTF744BE-CD1 | |
| The Oregon Trail 4th Edition (Disc 2) | PC | 1.1 | Rerelease | | OTF744BE-CD2 | |
| The Oregon Trail 4th Edition (Disc 3) | PC | 1.1 | Rerelease | | OTF744BE-CD3 | |
| The Oregon Trail 4th Edition (Disc 2) | PC | 1 | Rerelease | | OTF744CE-CD2 | |
| De Overval: Over Dwangmiddelen en Getuigenverhoor | CDI | | Original | | ovrvl 01 | |
| O! Rety! Psoty Dudusia Wesołka | PC | | Playada Gier | | P_20265_03A_PL | |
| OverBlood 2 オーバーブラッド2 | PSX | | Special Movie-ban | | PAPX 90046 … | |
| Ore no Ryouri 俺の料理 | PSX | | Taikenban | | PAPX 90089 | |
| Online Start-Up Disc v3.5: Broadband Only | PS2 | 1.00 | Original | | PBPX 95247 | |
| Online Start-Up Disc 4.0: Broadband Only | PS2 | 1.02 | Bundled with PS2 | | PBPX 95248 … | |
| Online Start-Up Disc v1.0 Disco de Inicio en Línea v1.0 | PS2 | 1.00 | Original | | PBPX 95250 … | |
| Online Start-Up Disc v3.0 | PS2 | 1.02 | Original | | PBPX-95239 | |
| Online Start-Up Disc v3.0 | PS2 | 1.01 | | | PBPX-95242 | |
| Online Start-Up Disc v3.5: Broadband Only | PS2 | 1.00 | Original | | PBPX-95246 | |
| ObsCure (Disc 1) | PC | 1.0 | Original | | PCO457CD | |
| ObsCure (Disc 2) | PC | 1.0 | Original | | PCO457CD | |
| ObsCure (Disc 3) | PC | 1.0 | Original | | PCO457CD | |
| ObsCure (Disc 4) | PC | 1.0 | Original | | PCO457CD | |
| ObsCure (Disc 5) | PC | 1.0 | Original | | PCO457CD | |
| Outcry (Disc 1) Outcry: The Dawn | PC | Version DPV 1.0 | Original | | PCO596CD | |
| Outcry (Disc 2) Outcry: The Dawn | PC | Version DPV 1.0 | Original | | PCO596CD | |
| Ore no Shikabane o Koete Yuke 俺の屍を越えてゆけ | PSX | | Tentou-you Movie Disc | | PCPX 96160 | |
| OnHand Chess / Sega Swirl Lite | PALM | PDA103-01 | Original | | PDA103-01 | |
| OnHand Sports Games / Sega Swirl Lite | PALM | PDA105-01 | OnHand Double Pack (Sports Games/Astrologer) | | PDA105-01 | |
| OnHand Complete Astrologer OnHand Complete Astrologer: Horoscopes & More! | PALM | PDA108-01 | OnHand Double Pack (Sports Games/Astrologer) | | PDA108-01 | |
| Odell Down Under | PC | | Original, SoftKey | | POD544AE-CD | |
| Operation Flashpoint: Cold War Crisis | PC | | Playable Demo | | POPFCDUS40 | |
| The Oregon Trail: Classic Edition | PC | | SoftKey | | POT144BE-CD | |
| The Oregon Trail: Classic Edition | PC | 3.0.1 | SoftKey | | POT144CE-CD | |
| The Oregon Trail: Classic Edition | PC | | SoftKey | | POT144EE-CD | |
| Outburst | PC | | Classic Value Series | | Product# 99043 | |
| Outlaw Golf | PC | | Original | | RM-OUTGOLF-UK | |
| OverKill | PC | | ROMWARE | | ROM 10 007 | |
| One Must Fall 2097 One Must Fall 2097 CD-ROM | PC | 1.1 | ROMWARE | | ROM 10017 | |
| Off Limits: Cassiopeia | PC | | ROMWARE | | ROM 10100 | |
| Off Limits: Mizar | PC | | ROMWARE | | ROM 10120 | |
| Objectif Transparence | CDI | | Original | | RP IND 4 94 | |
| Objectif Transparence | CDI | | Original | | RP IND 4 94 | |
| Onsen Ryokou Kakumei: Ich liebe dich.! 温泉旅行革命 ~Ich liebe dich.!~ | PC | 1.00 | Original | | RUCCA-003 | |
| Ob"ekt 69: Kasablanka Объект 69: Касабланка | PC | | Original | | RUSSOBIT-M 2003/408 | |
| Oceans Below | PC | | Bundle Version OEM | | RVL 13-004-059 Rev. A / 2198610-590002 / I 083100 | |
| Oha Suta Produce! Gentei Collabo Game Disc!! おはスタプロデュース!限定コラボゲームディスク!! | WII | | Limited Edition | | RVL-DCHJ-JPN | |
| Oops! Prank Party | WII | | Demo | | RVL-DPIE-USA-B0 | |
| Oyako de Asobo: Miffy no Omochabako おやこ で あそぼ ミッフィーの おもちゃばこ | WII | | Original | | RVL-R3UJ-JPN-B0 | |
| Osouji Sentai Clean Keeper お掃除戦隊くりーんきーぱー | WII | | Original | | RVL-RC5J-JPN | |
| One Piece: Unlimited Adventure ワンピース アンリミテッドアドベンチャー | WII | | Original | | RVL-RIPJ-JPN | |
| One Piece: Unlimited Cruise: Episode 2: Mezameru Yuusha ワンピース アンリミテッドクルーズ エピソード2 目覚める勇者 | WII | | Original | | RVL-RIUJ-JPN | |
| One Piece: Unlimited Cruise: Episode 2: Mezameru Yuusha ワンピース アンリミテッドクルーズ エピソード2 目覚める勇者 | WII | Rev 1 | Original | | RVL-RIUJ-JPN-B0 | |
| One Piece: Unlimited Cruise 2: Awakening of a Hero | WII | | Original | | RVL-RIUP-EUR-B0 | |
| Ougon no Kizuna 黄金の絆 | WII | | Original | | RVL-RK7J-JPN | |
| Off Road | WII | | Original | | RVL-RO2P-EUR | |
| Ousama Monogatari 王様物語 | WII | | Original | | RVL-RO3J-JPN-B0 | |
| Overlord: Dark Legend | WII | | Original | | RVL-ROAE-USA | |
| Overlord: Dark Legend | WII | | Original | | RVL-ROAP-EUR | |
| ObsCure: The Aftermath | WII | | Original | | RVL-ROBE-USA | |
| ObsCure II | WII | | Original | | RVL-ROBP-EUR | |
| Odoru Made in Wario おどる メイド イン ワリオ | WII | | Original | | RVL-RODJ-JPN | |
| Offroad Extreme! Special Edition | WII | | Original | | RVL-ROFE-USA-B0 | |
| Offroad Extreme! | WII | | Original | | RVL-ROFP-UKV-1 | |
| Offroad Extreme! | WII | | Original | | RVL-ROFX-NOE | |
| Onechanbara: Bikini Zombie Slayers | WII | | Original | | RVL-RONE-USA | |
| Oneechanbara Revolution お姉チャンバラ Revolution | WII | | Original | | RVL-RONJ-JPN | |
| Onechanbara: Bikini Zombie Slayers | WII | Rev 1 | Original | | RVL-RONP-EUR | |
| Open Season | WII | | Original | | RVL-ROPE-USA | |
| Open Season | WII | | Original | | RVL-ROPP-EUR | |
| One Piece: Unlimited Cruise: Episode 1: Nami ni Yureru Hihou ワンピース アンリミテッドクルーズ エピソード1 波に揺れる秘宝 | WII | Rev 1 | Minna no Osusume Selection | | RVL-ROUJ-JPN-B0 | |
| One Piece: Unlimited Cruise 1: The Treasure Beneath the Waves | WII | | Original | | RVL-ROUP-EUR-B0 | |
| Ōkami | WII | | Original | | RVL-ROWE-USA | |
| Ookami 大神 | WII | | Original | | RVL-ROWJ-JPN-B0 | |
| Ōkami | WII | | Original | | RVL-ROWP-EUR | |
| Order Up! | WII | | Original | | RVL-ROXE-USA | |
| Order Up! | WII | Rev 1 | Original | | RVL-ROXE-USA | |
| Order Up! | WII | | Original | | RVL-ROXP-UKV | |
| Order Up! | WII | | Original | | RVL-ROXX-EUR | |
| Opoona | WII | | Original | | RVL-RPOE-USA | |
| Opoona オプーナ | WII | | Original | | RVL-RPOJ-JPN | |
| Opoona | WII | | Original | | RVL-RPOP-EUR | |
| Ocean Commander | WII | | Original | | RVL-RQME-USA | |
| Oboro Muramasa 朧村正 | WII | | Original, Minna no Osusume Selection | | RVL-RSFJ-JPN-B0 | |
| Octomania | WII | | Original | | RVL-RTKE-USA | |
| Offshore Tycoon | WII | | Original | | RVL-RXFE-USA | |
| Outdoor Action Double Pack Outdoor Action Double Pack: Remington Great American Bird Hunt and Shimano Xtreme Fishing | WII | | Original | | RVL-SFHE-USA-B0 | |
| Our House: Party! | WII | | Original | | RVL-SHPE-USA-B0 | |
| De Ontdekker en het Mysterie van de Diamanten Scarabee The Explorer and the Mystery of the Diamond Scarab | WII | | Original | | RVL-SODP-EUR-B0 | |
| The Oregon Trail | WII | | 40th Anniversary Edition | | RVL-SORE-USA-B0 | |
| Oops! Prank Party | WII | Rev 1 | Original | | RVL-SPIE-USA-B0 | |
| Once Upon a Time | WII | Rev 1 | Original | | RVL-SUTE-USA-B0 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition | | S0025036 | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.004 | Game of the Year Edition | | S0025037 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition (BestSeller Series) | | S0026178 | |
| Okiraku TownsGEAR お気楽 TownsGEAR | FMT | | Bundled with Book | | SBHW-00002 | |
| OPSM Best Racing Game Ever | PSX | | | | SCED-02492 | |
| OPSM Best Ever Ever Games Demo | PSX | | Demo | | SCED-02851 | |
| OPSM Best PS One Games Ever Official Australian PlayStation Magazine Demo 44 | PSX | | | | SCED-03239 | |
| Official PlayStation Magazine Best Games Ever 2000 | PSX | | | | SCED-03375 | |
| Official UK PlayStation Best Games Ever! | PSX | | | | SCED-03408 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 1: Special Edition: Buyers Guide playstation2 greatest hits: vol 1 | PS2 | 1.00 | | | SCED-50161 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 2: Special Edition: A-Z of PS2 best ps2 games ever 2 demo | PS2 | 1.00 | | | SCED-50162 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 3: Special Edition: Players Guide playstation2 greatest hits: vol 3 | PS2 | 1.00 | | | SCED-50163 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 4: Special Edition: Yearbook 2001 playstation2 greatest hits: vol 4 | PS2 | 1.00 | | | SCED-50164 | |
| Official Demo Disc 1: Retail Edition November 01 | PS2 | 1.04 | Kiosk Demo | | SCED-50615 | |
| Official PlayStation 2 Magazine Demo 16 OPS2M DEMO 16/FRE | PS2 | 1.00 | | | SCED-50675 | |
| Official Demo Disc Retail Edition February 02 official demo disc retail edition february 02 | PS2 | 1.02 | | | SCED-50732 | |
| Official PlayStation 2 Magazine Germany Special Edition 1 ops2m germany special edition 1 | PS2 | 1.10 | | | SCED-50780 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 6: Special Edition: Awards 2002 playstation2 greatest hits volume 6 | PS2 | 1.00 | | | SCED-50783 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 5: Special Edition: Action Heroes playstation2 greatest hits volume 5 | PS2 | 1.00 | | | SCED-50784 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 7: Special Edition: Sports Games playstation 2 greatest hits volume 7 | PS2 | 1.00 | | | SCED-50785 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 8: Special Edition: Racing Games playstation 2 greatest hits volume 8 | PS2 | 1.10 | | | SCED-50786 | |
| Official PlayStation 2 Magazine Demo 21 ops2m demo 21: euro version | PS2 | 1.00 | | | SCED-50989 | |
| Das Offizielle PlayStation 2 Magazin: Special Edition 2 german special edition demo 2 | PS2 | 1.00 | | | SCED-51161 | |
| Official PlayStation 2 Magazine-UK Greatest Hits Volume 9: Special Edition: Buyers Guide playstation 2 greatest hits volume 9 | PS2 | 1.00 | | | SCED-51280 | |
| Official PlayStation 2 Magazine-UK: Crime Special ops2m crime special | PS2 | 1.01 | | | SCED-51444 | |
| Official PlayStation 2 Magazine-UK Special Edition 11: The World's Best PS2 Games Ever ops2m special edition 11 | PS2 | 1.02 | | | SCED-51505 | |
| Official PlayStation 2 Magazine Germany Special Edition 2003/01 ops2m germany special edition 2003/01 | PS2 | 1.00 | | | SCED-51512 | |
| Official PlayStation 2 Magazine-UK Special Edition 12: PlayStation 2 Blockbusters! ops2m special edition 12 | PS2 | 1.01 | | | SCED-51541 | |
| Official PlayStation 2 Magazine-UK Special Edition 13: Girls! Motors! Guns! War! Monsters! ops2m special edition 13 | PS2 | 1.00 | | | SCED-51542 | |
| Official PlayStation 2 Magazine-UK Special Edition 15: Summer Blockbusters! ops2m special edition 15 | PS2 | 1.00 | | | SCED-51544 | |
| Official PlayStation 2 Magazine-UK Special Edition 16: Buyers Guide ops2m special edition 16 | PS2 | 1.01 | | | SCED-51545 | |
| Official PlayStation 2 Magazine Germany Special Edition 2003/02 | PS2 | 1.01 | | | SCED-51549 | |
| Official PlayStation 2 Magazine Germany Special Edition 2003/03 | PS2 | 1.00 | | | SCED-51551 | |
| Official PlayStation 2 Magazine Demo 37 PlayStation 2 Magazine CD 37 Septembre 2003 | PS2 | 1.00 | | | SCED-51563 | |
| Official PlayStation 2 Magazine Germany Special Edition 01/2004 | PS2 | 1.01 | | | SCED-52119 | |
| Official PlayStation 2 Magazine-UK Special Edition 20: It's Here! ops2m special edition 20/demo | PS2 | 1.01 | | | SCED-52196 | |
| Official PlayStation 2 Magazine Sonderausgabe 2004/3 | PS2 | 1.00 | | | SCED-52997 | |
| Official PlayStation 2 Magazine Germany Special Edition 2005/01 ops2m ger special 01/2005 | PS2 | 1.02 | | | SCED-53298 | |
| Official PlayStation 2 Magazine Demo 58 ops2m demo 58: spa/por | PS2 | 1.00 | | | SCED-53348 | |
| Official PlayStation 2 Magazine: German Kids Special OPS2 Ger Kids Special/DEM/GER | PS2 | 1.00 | | | SCED-53611 | |
| Official PlayStation 2 Magazine Germany Special 2/2005 | PS2 | 1.00 | | | SCED-53662 | |
| Official PlayStation 2 Magazine French Christmas Special Demo ops2m french christmas special demo | PS2 | 1.00 | | | SCED-53854 | |
| Official PlayStation 2 Magazine Germany Special 3/2005 ops2 ger special 3/2005 | PS2 | 1.00 | | | SCED-53938 | |
| Official PlayStation 2 Magazine Demo 77 ops2m germany 10-2006 | PS2 | 1.00 | | | SCED-54056 | |
| Official PlayStation 2 Magazine Germany Winter 2006 ops2 ger winter 2006 | PS2 | 1.00 | | | SCED-54558 | |
| Official PlayStation 2 Magazine Demo 80 ops2m demo 80 spa/por | PS2 | 1.00 | | | SCED-54567 | |
| Official PlayStation 2 Magazine Demo 81 ops2m demo 81 spa/por | PS2 | 1.00 | | | SCED-54603 | |
| Official PlayStation 2 Magazine Demo 82 ops2m germany 02-2007 | PS2 | 1.01 | | | SCED-54642 | |
| Official PlayStation 2 Magazine Demo 83 ops2m germany 2007/03 | PS2 | 1.01 | | | SCED-54692 | |
| Official PlayStation 2 Magazine Germany Special Edition 2007-1 | PS2 | 1.02 | | | SCED-54693 | |
| Official PlayStation 2 Magazine Demo 95 ops2m demo 95 eur | PS2 | 1.00 | | | SCED-55114 | |
| Official PlayStation 2 Magazine Demo 101 ops2m demo 101 eur | PS2 | 1.00 | | | SCED-55120 | |
| Odin Sphere 오딘 스피어 | PS2 | 1.00 | Sample | | SCKA 20107 | |
| Ore no Shikabane o Koete Yuke 俺の屍を越えてゆけ | PSX | | Original, PlayStation the Best, PSone Books, PSone Books (Silver Disc) | | SCPS 10074 … | |
| Ore no Ryouri 俺の料理 | PSX | | Original, PlayStation the Best | | SCPS 10099 … | |
| Operator's Side オペレーターズ・サイド | PS2 | 1.02 | Doukonban, Doukonban: PlayStation 2 the Best | | SCPS 15038 … | |
| Operator's Side オペレーターズサイド | PS2 | 1.02 | Original | | SCPS 15039 | |
| Online Start-Up Disc v3.0 | PS2 | 1.01 | | | SCUS 97425 | |
| Online Start-Up Disc 4.0 | PS2 | 1.00 | | | SCUS-97357 | |
| Official Yarudora Fan Book: Double Cast: CD-ROM Special Data-shuu オフィシャルやるドラファンブック ダブルキャスト | PSX | | Original | | SCZS 94101 | |
| Official Yarudora Fan Book: Kisetsu o Dakishimete オフィシャルやるドラファンブック 季節を抱きしめて | PSX | | Original | | SCZS 94102 | |
| Official Yarudora Fan Book: Sampaguita オフィシャルやるドラファンブック サンパギータ | PSX | | Original | | SCZS 94103 | |
| Official Yarudora Fan Book: Yukiwari no Hana: CD-ROM Special Data-shuu オフィシャルやるドラファンブック 雪割りの花 | PSX | | Original | | SCZS 94104 | |
| Official Fan Book: Circadia: Special CD-ROM オフィシャルファンブック サーカディア | PSX | | Original | | SCZS 94106 | |
| OutRun 2 | XBOX | | Original | | SE-054 | |
| OutRun 2 アウトラン2 | XBOX | | Shokai Genteiban | | SE-054 | |
| OutRun 2 | XBOX | | Original | | SE-054 | |
| OutRun 2 | XBOX | | Demo | | SE-057 | |
| OutRun 2006: Coast 2 Coast | XBOX | | Original | | SE-136 | |
| OutRun 2006: Coast 2 Coast | PC | 1.0 | Original | | SEGA-PC029 | |
| OutRun 2006: Coast 2 Coast | PC | 1.00.0000 | Serie Maxima II | | SEGA-PC029 | |
| OutRun 2006: Coast 2 Coast | PC | | Top Games | | SEGA-PC029 | |
| Oksfordzka Encyklopedia Historii Świata | PC | | Covermount | | SELL 0103 | |
| Oksfordzka Encyklopedia Historii Świata. Tom II | PC | | Covermount | | SELL 0108 | |
| Omnia Junior 1: Enciclopedia: Dizionario | PC | | Covermount | | SIAE 08A01PA | |
| Omnia Junior 2: Storia: Attività interattive | PC | | Covermount | | SIAE 0901PA | |
| Omnia Junior 3: Il Mondo degli Animali | PC | | Covermount | | SIAE1001PA | |
| Oddworld: Abe's Oddysee | PSX | | Demo | | SLED-00725 | |
| Oddworld: Abe's Exoddus + Duke Nukem: Time To Kill + B-Movie | PSX | | Demo | | SLED-01608 | |
| Oddworld: Abe's Exoddus + Duke Nukem: Time to Kill + Duke Nukem: 3D | PSX | | | | SLED-01655 | |
| Off-World Interceptor Extreme | PSX | | Original | | SLES-00047 | |
| Onside Complete Soccer | PSX | | Original | | SLES-00079 | |
| Onside Complete Soccer | PSX | Rev 1 | Original | | SLES-00079 | |
| Olympic Soccer | PSX | | Original | | SLES-00113 | |
| Oddworld: Abe's Oddysee | PSX | | Original, Platinum, Best of Infogrames: Value Series, Best of Infogrames: Adventure | | SLES-00664 … | |
| OverBlood | PSX | | Original | | SLES-00768 | |
| OverBlood | PSX | | Original | | SLES-00769 | |
| OverBlood | PSX | | Original | | SLES-00770 | |
| Oddworld: L'Odyssée d'Abe | PSX | | Original, Best of Infogrames | | SLES-00838 … | |
| Oddworld: Abe's Oddysee | PSX | | Platinum | | SLES-00839 | |
| Oddworld: Abe's Oddysee | PSX | | Original | | SLES-00840 | |
| Oddworld: Abe's Oddysee | PSX | | Original | | SLES-00841 | |
| Overboard! | PSX | | Original, 1998 4 PlayStation Multi Pack | | SLES-00865 | |
| Oddworld: Abe's Exoddus (Disc 1) | PSX | | Original, Platinum | | SLES-01480 … | |
| Oddworld: L'Exode d'Abe (Disc 1) | PSX | | Original | | SLES-01502 | |
| Oddworld: Abe's Exoddus (Disc 1) | PSX | | Original | | SLES-01503 | |
| Oddworld: Abe's Exoddus (Disc 1) | PSX | | Original, Platinum | | SLES-01504 … | |
| Oddworld: Abe's Exoddus (Disc 1) | PSX | | Original | | SLES-01505 | |
| OverBlood 2 (Disc 1) | PSX | | Original | | SLES-01879 | |
| OverBlood 2 (Disc 1) | PSX | Rev 1 | Original | | SLES-01879 … | |
| OverBlood 2 (Disc 1) | PSX | | Original | | SLES-01880 | |
| OverBlood 2 (Disc 1) | PSX | Rev 1 | Original | | SLES-02187 … | |
| Oro e Gloria: La Strada per El Dorado | PSX | | Original | | SLES-03186 | |
| Oro y Gloria: La Ruta hacia El Dorado | PSX | | Original | | SLES-03187 | |
| Oddworld: Abe's Exoddus (Disc 2) | PSX | | Original, Platinum | | SLES-11480 … | |
| Oddworld: L'Exode d'Abe (Disc 2) | PSX | | Original | | SLES-11502 | |
| Oddworld: Abe's Exoddus (Disc 2) | PSX | | Original | | SLES-11503 | |
| Oddworld: Abe's Exoddus (Disc 2) | PSX | | Original, Platinum | | SLES-11504 … | |
| Oddworld: Abe's Exoddus (Disc 2) | PSX | | Original | | SLES-11505 | |
| OverBlood 2 (Disc 2) | PSX | | Original | | SLES-11879 | |
| OverBlood 2 (Disc 2) | PSX | Rev 1 | Original | | SLES-11879 … | |
| OverBlood 2 (Disc 2) | PSX | | Original | | SLES-11880 | |
| OverBlood 2 (Disc 2) | PSX | Rev 1 | Original | | SLES-12187 … | |
| Orphen: Scion of Sorcery | PS2 | 1.00 | Original | | SLES-50062 | |
| Operation WinBack | PS2 | 1.10 | Original | | SLES-50155 | |
| Off-Road: Wide Open Test Drive Off-Road: Wide Open | PS2 | 1.00 | Original | | SLES-50232 | |
| Onimusha: Warlords | PS2 | 1.02 | Original, Platinum | | SLES-50247 … | |
| The Operative: No One Lives Forever | PS2 | 1.00 | Original | | SLES-50592 | |
| Onimusha 2: Samurai's Destiny | PS2 | 1.00 | Original | | SLES-50978 | |
| Onimusha 2: Samurai's Destiny 鬼武者2 PAL | PS2 | 1.00 | Beta | | SLES-50978 | |
| Onimusha: Blade Warriors | PS2 | 1.01 | Original | | SLES-51913 | |
| ObsCure | PS2 | 1.01 | Original | | SLES-52508 | |
| Operation Air Assault | PS2 | 1.01 | Original | | SLES-52572 | |
| One Piece: Round the Land! | PS2 | 1.00 | Original | | SLES-52731 | |
| ObsCure | PS2 | 1.00 | Original | | SLES-52737 | |
| ObsCure | PS2 | 1.00 | Original | | SLES-52738 | |
| Offroad Extreme! | PS2 | 1.01 | Original | | SLES-52751 | |
| Outlaw Volleyball Remixed | PS2 | 1.01 | Original | | SLES-53138 … | |
| ObsCure | PS2 | 1.01 | Original | | SLES-53322 | |
| Obliterate | PS2 | 1.01 | Original | | SLES-53355 … | |
| Opowieści z Narnii: Lew, Czarownica i Stara Szafa | PS2 | 1.00 | Original | | SLES-53713 | |
| OutRun 2006: Coast 2 Coast | PS2 | 1.01 | Review | | SLES-53998 | |
| OutRun 2006: Coast 2 Coast | PS2 | 1.02 | Original | | SLES-53998 | |
| Offroad Extreme! Special Edition | PS2 | 1.00 | Original | | SLES-54109 | |
| Operation WinBack 2: Project Poseidon | PS2 | 1.00 | Original | | SLES-54116 … | |
| ObsCure II | PS2 | 1.01 | Original | | SLES-54782 | |
| Operation Air Assault 2 | PS2 | 1.01 | Original | | SLES-54804 | |
| Off Road | PS2 | 1.01 | Original | | SLES-55032 | |
| Ocean Commander | PS2 | 1.01 | Original | | SLES-55047 | |
| Odin Sphere | PS2 | 1.00 | Original | | SLES-55110 | |
| Onimusha: Dawn of Dreams (Disc 1) | PS2 | 1.00 | Original | | SLES-82038 | |
| Onimusha: Dawn of Dreams (Disc 2) | PS2 | 1.00 | Original | | SLES-82039 | |
| One Piece: Round the Land! 원피스 라운드 더 랜드! | PS2 | 1.00 | Original | | SLKA 25208 | |
| One Piece: Grand Battle! Rush 원피스 그랜드배틀! RUSH | PS2 | 1.00 | Original | | SLKA 25299 | |
| One Piece: Pirates Carnival 원피즈 해적카니발 | PS2 | 1.01 | Original | | SLKA 25351 | |
| One Piece: Grand Adventure 원피스: 그랜드 배틀 어드벤처 | PS2 | 1.00 | Original | | SLKA 25388 | |
| Osouji Sentai Clean Keeper H お掃除戦隊 くりーんきーぱーはいぱーH | PS2 | 1.01 | Original | | SLPM 55220 | |
| Online Games: Dai Guru Guru Onsen オンラインゲームズ 大ぐるぐる温泉 | PS2 | 1.01 | Original | | SLPM 62195 | |
| Oretachi Geesen Zoku: Scramble オレたちゲーセン族 スクランブル | PS2 | 1.01 | Original | | SLPM 62626 | |
| Oretachi Geesen Zoku: Crazy Climber オレたちゲーセン族 クレイジー・クライマー | PS2 | 1.01 | Original | | SLPM 62627 | |
| Oretachi Geesen Zoku: Karate-dou オレたちゲーセン族 空手道 | PS2 | 1.01 | Original | | SLPM 62628 | |
| Oretachi Geesen Zoku: Time Pilot オレたちゲーセン族 タイムパイロット | PS2 | 1.01 | Original | | SLPM 62644 | |
| Oretachi Geesen Zoku: Moon Cresta オレたちゲーセン族 ムーンクレスタ | PS2 | 1.01 | Original | | SLPM 62645 | |
| Oretachi Geesen Zoku: Sonic Wings オレたちゲーセン族 ~ソニックウィングス~ | PS2 | 1.01 | Original | | SLPM 62646 | |
| Oretachi Geesen Zoku: Super Volleyball オレたちゲーセン族 スーパーバレーボール | PS2 | 1.04 | Original | | SLPM 62660 | |
| Oretachi Geesen Zoku: Terra Cresta オレたちゲーセン族 テラクレスタ | PS2 | 1.04 | Original | | SLPM 62661 | |
| Oretachi Geesen Zoku: Burger Time オレたちゲーセン族 バーガータイム | PS2 | 1.00 | Original | | SLPM 62695 | |
| Oretachi Geesen Zoku: Yie Ar Kung Fu オレたちゲーセン族 イー・アル・カンフー | PS2 | 1.01 | Original | | SLPM 62696 | |
| Oretachi Geesen Zoku: Quarth オレたちゲーセン族 クォース | PS2 | 1.02 | Original | | SLPM 62704 | |
| Oretachi Geesen Zoku: Nekketsu Koukou Dodgeball-bu オレたちゲーセン族 熱血高校ドッジボール部 | PS2 | 1.00 | Original | | SLPM 62705 | |
| Oretachi Geesen Zoku: Nekketsu Kouha Kunio-kun オレたちゲーセン族 熱血硬派くにおくん | PS2 | 1.01 | Original | | SLPM 62706 | |
| Oretachi Geesen Zoku: Rabio Lepus オレたちゲーセン族 ラビオ レプス | PS2 | 1.00 | Original | | SLPM 62707 | |
| Oretachi Geesen Zoku: Akumajou Dracula オレたちゲーセン族 悪魔城ドラキュラ | PS2 | 1.01 | Original | | SLPM 62729 | |
| Oretachi Geesen Zoku: Contra オレたちゲーセン族 魂斗羅 | PS2 | 1.00 | Original | | SLPM 62730 | |
| Oretachi Geesen Zoku: Pooyan オレたちゲーセン族 プーヤン | PS2 | 1.01 | Original | | SLPM 62731 | |
| Oretachi Geesen Zoku: Thunder Cross オレたちゲーセン族 サンダークロス | PS2 | 1.02 | Original | | SLPM 62744 | |
| Oretachi Geesen Zoku: Trio the Punch オレたちゲーセン族 トリオ・ザ・パンチ | PS2 | 1.02 | Original | | SLPM 62745 | |
| Ore ga Kantoku da! Gekitou Pennant Race オレが監督だ! ~激闘ペナントレース~ | PS2 | 1.03 | Original | | SLPM 65005 | |
| Ore ga Kantoku da! Volume 2: Gekitou Pennant Race オレが監督だ!Volume.2 ~激闘ペナントレース~ | PS2 | 1.04 | Original | | SLPM 65056 | |
| Over the Monochrome Rainbow featuring Shogo Hamada | PS2 | 1.40 | Original | | SLPM 65271 | |
| Onimusha Buraiden 鬼武者 無頼伝 | PS2 | 1.02 | Original | | SLPM 65411 | |
| Orange Pocket: Root オレンジポケット ~リュート~ | PS2 | 1.02 | Shokai Genteiban | | SLPM 65524 | |
| Orange Pocket: Root オレンジポケット ~リュート~ | PS2 | 1.02 | Original | | SLPM 65525 | |
| Online Pro Wrestling オンラインプロレスリング | PS2 | 1.03 | Original | | SLPM 65586 | |
| Otome wa Boku ni Koishiteru 乙女はお姉さまに恋してる | PS2 | 1.05 | Original | | SLPM 66165 | |
| Otome-teki Koi Kakumei: Love Revo!! 乙女的恋革命★ラブレボ!! | PS2 | 1.03 | Love Revo Box | | SLPM 66237 | |
| Otome-teki Koi Kakumei: Love Revo!! 乙女的恋革命★ラブレボ!! | PS2 | 1.03 | Original, Love Revo Box | | SLPM 66238 … | |
| Omoi no Kakera: Close to 想いのかけら ‐Close to‐ | PS2 | 1.02 | 2800 Collection | | SLPM 66385 | |
| Ouka: Kokoro Kagayakaseru Sakura 桜華 ~心輝かせる桜~ | PS2 | 1.01 | Original | | SLPM 66406 | |
| Odin Sphere オーディン・スフィア | PS2 | 1.02 | Original, PlayStation 2 the Best | | SLPM 66474 … | |
| OutRun 2 SP アウトラン2 スペシャルツアーズ | PS2 | 1.03 | Shokai Genteiban | | SLPM 66628 | |
| Ojousama Kumikyoku: Sweet Concert お嬢様組曲 -Sweet Concert- | PS2 | 1.01 | Special Pack-ban | | SLPM 66726 | |
| Ouran Koukou Host Club 桜蘭高校ホスト部 | PS2 | 1.01 | Genteiban | | SLPM 66737 | |
| Ouran Koukou Host Club 桜蘭高校ホスト部 | PS2 | 1.01 | Original | | SLPM 66738 | |
| Onimusha: Warlords | PS2 | 1.00 | Original | | SLPM 67507 | |
| Over Drivin' DX: Rally Edition オーバードライビンDX ラリーエディション | PSX | | Hibaihin | | SLPM 80032 | |
| Ore! Tomba オレっ!トンバ | PSX | | Taikenban | | SLPM 80165 | |
| Option: Tuning Car Battle Option チューニングカーバトル | PSX | | Highlight-ban | | SLPM 80203 | |
| Option: Tuning Car Battle Option チューニングカーバトル | PSX | | Taikenban | | SLPM 80206 | |
| Ojousama Express お嬢様特急 | PSX | | Taikenban | | SLPM 80255 | |
| OverBlood 2: The "East Edge" File オーバーブラッド2 -The "East Edge" File- | PSX | | Premium Disc | | SLPM 80270 | |
| Over Drivin' III: Hot Pursuit オーバードライビンⅢ | PSX | | Taikenban Disc | | SLPM 80298 | |
| Over Drivin' IV オーバードライビンⅣ | PSX | | Taikenban Disc | | SLPM 80437 | |
| Other Life Azure Dreams アザーライフ アザードリームス | PSX | | Original | | SLPM 86047 | |
| Oyako Entertainment Series: TV Kamishibai Vol. 1 親子エンタテインメントシリーズ ~てれび紙芝居Vol.1~ | PSX | | Original | | SLPM 86393 | |
| Oha Suta Dance Dance Revolution おはスタ ダンス ダンス レボリューション | PSX | | Original | | SLPM 86603 | |
| OverBlood オーバーブラッド | PSX | | Major Wave | | SLPM 86641 | |
| The Oni Taiji!!: Mezase! Nidaime Momotarou The鬼退治!! 目指せ!二代目桃太郎 | PSX | | Major Wave | | SLPM 86989 | |
| Otenki Kororin お天気ころりん | PSX | | Original | | SLPM 87047 | |
| The Oni Taiji!!: Mezase! Nidaime Momotarou The鬼退治!! 目指せ!二代目桃太郎 | PSX | | Original | | SLPS 00089 | |
| Off-World Interceptor Extreme オフワールド・インターセプター エクストリーム | PSX | | Original | | SLPS 00122 | |
| Othello World II: Yume to Michi e no Chousen オセロワールドII 夢と未知への挑戦 | PSX | | Original, Fukkokuban | | SLPS 00136 … | |
| Oracle no Houseki: Jewels of the Oracle オラクルの宝石 Jewels of the Oracle | PSX | | Original | | SLPS 00240 | |
| Over Drivin' DX オーバードライビンDX | PSX | | Original | | SLPS 00327 | |
| OverBlood オーバーブラッド | PSX | | Original, PlayStation the Best | | SLPS 00392 … | |
| The Open Golf: History of Turnberry ジ・オープンゴルフ History of Turnberry | PSX | | Original | | SLPS 00418 | |
| Öhlins Hyper-Rally ハイパーラリー | PSX | | Original | | SLPS 00462 | |
| Olympic Soccer オリンピックサッカー | PSX | | Original | | SLPS 00523 | |
| Olympia, Yamasa: Virtua Pachi-Slot II: Jissen! Bishoujo Kouryakuhou オリンピア・山佐 バーチャパチスロⅡ ~実戦!美少女攻略法~ | PSX | | Original | | SLPS 00714 | |
| Out Live: Be Eliminate Yesterday アウトライブ Be Eliminate Yesterday | PSX | | Original | | SLPS 00746 | |
| Over Drivin' II オーバードライビンⅡ | PSX | | Original | | SLPS 00895 | |
| Ongaku Tkool: Kanadeeru 2 音楽ツクール かなで~る2 | PSX | | Original | | SLPS 00903 | |
| Ore! Tomba オレっ!トンバ | PSX | | Original | | SLPS 01144 | |
| Option: Tuning Car Battle オプション チューニングカーバトル | PSX | | Original | | SLPS 01207 | |
| OverBlood 2 (Disc 1) オーバーブラッド2 | PSX | | Original | | SLPS 01261 | |
| OverBlood 2 (Disc 2) オーバーブラッド2 | PSX | | Original | | SLPS 01262 | |
| Olympia, Takasago: Virtua Pachi-Slot III オリンピア・高砂 バーチャ・パチスロⅢ | PSX | | Original | | SLPS 01386 | |
| Ojousama Express (Disc 1) お嬢様特急 | PSX | | Original | | SLPS 01495 | |
| Ojousama Express (Disc 2) お嬢様特急 | PSX | | Original | | SLPS 01496 | |
| Okappari-ou 陸釣王 | PSX | | Original | | SLPS 01524 | |
| Over Drivin' III: Hot Pursuit オーバードライビンⅢ | PSX | | Original | | SLPS 01593 | |
| Option: Tuning Car Battle 2 オプション チューニングカーバトル2 | PSX | | Original | | SLPS 01857 | |
| Oasis Road オアシスロード | PSX | | Original | | SLPS 01899 | |
| Osaka Naniwa Matenrou 大阪ナニワ摩天楼 | PSX | | Original | | SLPS 02013 | |
| Over Drivin' IV オーバードライビンⅣ | PSX | | Original | | SLPS 02099 | |
| Ore no Yotto: Ganbare! Nippon Challenge 俺のヨット ~がんばれ! ニッポン・チャレンジ~ | PSX | | Original | | SLPS 02132 | |
| Oz no Mahoutsukai: Another World: Rung Rung オズの魔法使い ~Another World~ ルングルング | PSX | | Original | | SLPS 02335 | |
| Our Graduation: Mahjong de Pon! Hanafuda de Koi! (Disc 1) (Mahjong de Pon!) アワー グラデュエーション ~麻雀でポン 花札でコイ~ | PSX | | Original | | SLPS 02576 | |
| Our Graduation: Mahjong de Pon! Hanafuda de Koi! (Disc 2) (Hanafuda de Koi!) アワー グラデュエーション ~麻雀でポン 花札でコイ~ | PSX | | Original | | SLPS 02577 | |
| Option: Tuning Car Battle Spec R オプション チューニングカーバトル スペックR | PSX | | Original | | SLPS 02587 | |
| Oyaji no Jikan: Nee-chan Tsuri Iku de! おやじの時間 ね~ちゃん釣り行くで! | PSX | | Original | | SLPS 02590 | |
| Ooedo Fuusui Ingaritsu: Hanabi 2 大江戸風水因果律 花火2 | PSX | | Original | | SLPS 02814 | |
| Oja Majo DoReMi Dokkan! Nijiiro ParaDice おジャ魔女どれみドッカ~ン! にじいろパラダイス | PSX | | Original | | SLPS 03497 | |
| Otogi Story: Tenshi no Shippo おとぎストーリー ~天使のしっぽ~ | PSX | | Original | | SLPS 03531 | |
| Ougon Kishi Garo 黄金騎士 牙狼 | PS2 | 1.01 | Genteiban | | SLPS 20462 | |
| Ougon Kishi Garo 黄金騎士 牙狼 | PS2 | 1.01 | Original | | SLPS 20463 | |
| Only You: Rebel Cross Only You リベルクルス | PS2 | 1.03 | Original, Drama CD Tsuki | | SLPS 25150 … | |
| Omoide ni Kawaru Kimi: Memories Off 想い出にかわる君 -Memories Off- | PS2 | 1.01 | Original | | SLPS 25173 | |
| One Piece: Grand Battle! 3 ONE PIECE グランドバトル!3 | PS2 | 1.02 | Original | | SLPS 25315 | |
| One Piece: Round the Land! ワンピース ランドランド! | PS2 | 1.01 | Original | | SLPS 25382 | |
| One Piece: Grand Battle! Rush ワン・ピース ~グラバト!ラッシュ~ | PS2 | 1.01 | Original | | SLPS 25473 | |
| One Piece: Pirates Carnival ワンピース パイレーツカーニバル | PS2 | 1.01 | Original | | SLPS 25576 | |
| One Piece: Pirates Carnival ワンピース パイレーツカーニバル | PS2 | 1.01 | Multi Tap (SCPH-10090) Doukonban | | SLPS 25583 | |
| One Piece: Pirates Carnival ワンピース パイレーツカーニバル | PS2 | 1.01 | Multi Tap (SCPH-70120) Doukonban | | SLPS 25584 | |
| Orange Honey: Boku wa Kimi ni Koi shiteru オレンジ♥ハニー 僕はキミに恋してる | PS2 | 1.02 | Shokai Genteiban | | SLPS 25766 | |
| Orange Honey: Boku wa Kimi ni Koi shiteru オレンジ♥ハニー 僕はキミに恋してる | PS2 | 1.02 | Original, Best Collection | | SLPS 25767 … | |
| Ore no Shita de Agake 俺の下で AGAKE | PS2 | 1.01 | Original | | SLPS 25796 | |
| Option: Tuning Car Battle オプション チューニングカーバトル | PSX | Rev 1 | PlayStation the Best | | SLPS 91037 | |
| The Operative: No One Lives Forever | PS2 | 1.50 | Original | | SLUS 20028 | |
| ObsCure | PS2 | 1.00 | Original | | SLUS 20777 | |
| Outlaw Volleyball Remixed | PS2 | 1.02 | Original | | SLUS 21049 | |
| OutRun 2006: Coast 2 Coast | PS2 | 1.01 | Original | | SLUS 21274 | |
| Odin Sphere | PS2 | 1.00 | Original, Greatest Hits | | SLUS 21577 … | |