| Slot Machine |  Oregon Gold | 2005 | IGT International Game Technologies Reno, NV, USA |
| Nintendo GBA cart. | Oshare Princess 5 Model AGB-BO5J-JPN | 2005 | Culture Brain |
| Pachislot | Osomatsukun | 2005 | Daiichi Denshi |
| Pachislot | Ossu! Bancho | 2005 | Daito-Giken, Inc. Japan |
| Redemption mechanical game | Ostrich Emotion | 2005 | Hope Japan |
| Nintendo DS cart. | Osu! Tatakae! Ouendan Model NTR-AOSJ-JPN | 2005 | Nintendo Co., Ltd. Japan |
| Taito G-Net card | Otenami Haiken Final | 2005 | Success Japan |
| Sinclair ZX Spectrum cass. | Othello 2005a Hb | 2005 | NyitraiSOFT |
| Sinclair ZX Spectrum cass. | Otodolo 2 Hb | 2005 | NyitraiSOFT |
| PC/MS-Windows CD | Otoko no Baken-jutsu Zipang Starter Pack | 2005 | MediaKite Japan |
| Nintendo DS cart. | Otona no DS Golf Model NTR-AGFJ-JPN | 2005 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. |  Ottifanten Pinball Model AGB-BOFD-NOE | 2005 | Trendverlag |
| Video Slot Machine | Outback Jack | 2005 | Aristocrat Leisure Industries Pty, Ltd. |
| Microsoft XBOX disc | Outlaw Tennis | 2005 | Unknown |
| Slot Machine | Outrageous Ollie's Oystermania | 2005 | IGT International Game Technologies Reno, NV, USA |
| PC/MS-Windows DVD | Oyaji no Chousen Mite Kitaeru Otoko no Nou tore - Kiso-hen Model MKO-027 | 2005 | MediaKite Japan |
| PC/MS-Windows CD | Oyaji no Chousen Otoko no Unou Drill | 2005 | MediaKite Japan |
| PC/MS-Windows CD | Oyaji no Katsuryoku Otoko no Kanji Doujou Shokyuu-hen Model MKO-030 | 2005 | MediaKite Japan |
| PC/MS-Windows CD | Oyaji no Katsuryoku Otoko no Sokudoku-jutsu 2 Asameshimae ni Shinbun o Kandoku | 2005 | MediaKite Japan |
| Pachinko | Oyoge! Taiyakikun | 2005 | Heiwa Japan |
| Nintendo GBA cart. | Paard & Pony - Mijn Manege | 2005 | Mindscape, Inc. Northbrook, IL, USA 24294 |
| Nintendo DS cart. | Pac 'n Roll Model NTR-APNE-USA | 2005 | NAMCO, Ltd. Japan |
| Nintendo DS cart. | Pac 'n Roll Model NTR-APNJ-JPN | 2005 | NAMCO, Ltd. Japan |
| Nintendo DS cart. | Pac 'n Roll Model NTR-APNP-AUS | 2005 | Nintendo Co., Ltd. Japan |
| Nintendo DS cart. | Pac 'n Roll Model NTR-APNP-EUR | 2005 | NAMCO, Ltd. Japan |
| Jakks Pacific MS Pacman Game Key | Pac-Man & Bosconian + Rally X P | 2005 | Jakks Pacific, Inc. |
| Jakks Pacific MS Pacman Game Key | Pac-Man + Bosconian P | 2005 | Jakks Pacific, Inc. |
| Arcade Video game | Pac-Man 25th Anniversary | 2005 | NAMCO, Ltd. Japan |
| Nintendo GBA cart. | Pac-Man Pinball Advance Model AGB-BP8E-USA | 2005 | NAMCO, Ltd. Japan |
| Nintendo GBA cart. | Pac-Man Pinball Advance Model AGB-BP8P | 2005 | Zoo Digital Publishing |
| Nintendo GBA cart. | Pac-Man World & Ms. Pac-Man - Maze Madness | 2005 | Zoo Digital Publishing |
| Nintendo GBA cart. | Pac-Man World + Ms. Pac-Man - Maze Madness Model AGB-B6PE-USA | 2005 | NAMCO, Ltd. Japan |
| Nintendo GBA cart. | Pac-Man World 2 Model AGB-B2CE-USA | 2005 | NAMCO, Ltd. Japan |
| Nintendo GBA cart. | Pac-Man World 2 Model AGB-B2CP | 2005 | Zoo Digital Publishing |
| PC/MS-Windows CD | Pac-Man World 3 | 2005 | NAMCO, Ltd. Japan |
| Nintendo GameCube disc | Pac-Man World 3 Model DOL-GP8E-USA | 2005 | NAMCO, Ltd. Japan |
| Microsoft XBOX disc | Pac-Man World 3 Model NM02301A-NM | 2005 | NAMCO, Ltd. Japan |
| Nintendo DS cart. | Pac-Man World 3 Model NTR-APWE-USA | 2005 | NAMCO, Ltd. Japan |
| Sony PlayStation 2 disc | Pac-Man World 3 Model SLUS-21219 | 2005 | NAMCO, Ltd. Japan |
| Sony PSP UMD | Pac-Man World 3 Model ULUS-10055 | 2005 | NAMCO, Ltd. Japan |
