Reset • Displaying results 1 - 19 of 19
| Region | Title | System | Version | Edition | Languages | Serial | Status |
|---|---|---|---|---|---|---|---|
 | Oceans Below オーシャンズ・ビロウ | 3DO | Original |  | FZ-SJ2752 |  | |
 | Oceans Below | 3DO | Original |  | ![2 and more dumps from original media [!]](/images/status/green.png "2 and more dumps from original media [!]") | ||
| Off-World Interceptor オフ‐ワールド・インターセプター | 3DO | Original | | FZ-SJ3151 | | |
 | Off-World Interceptor 혹성질주 | 3DO | Original | | GDT-GA241 | | |
 | Off-World Interceptor | 3DO | Original | | | ||
| Ogura Hyakunin Isshu 小倉百人一首 | 3DO | Original | | SV-0201 | | |
| Oilman オイルマン | 3DO | Hibaihin | | OIL-9610 | | |
 | Olympic Games | 3DO | Bundled with Magazine (Demo) | | | ||
| Olympic Soccer | 3DO | Original |     | FZ-SW0011 | | |
| Olympic Summer Games | 3DO | Original | | FZ-SW0012 | | |
| Onee-san to Issho! Janken Paradise お姉さんといっしょ！ じゃんけん パラダイス | 3DO | Original | | FZ-SJ5251 | | |
| Onee-san to Issho! Kisekae Paradise お姉さんといっしょ！ 着せ替え パラダイス | 3DO | Original | | FZ-SJ5252 | | |
| OnSide Soccer | 3DO | Unlicensed (oldergames, Good Deal Games Double Header! Two Game Set) | | | ||
| Orbatak | 3DO | Arcade CD-ROM | | | ||
| Oukoku no Grand Chef 王国のグランシェフ | 3DO | Original | | FZ-SJ4252 | | |
| Out of This World | 3DO | Original | | | ||
| Out of This World | 3DO | RE | 3DO Maniac Pack | | | |
| Outer World アウター・ワールド | 3DO | Original | | FZ-SJ3451 | | |
| Oyaji Hunter Mahjong おやじハンター・マージャン | 3DO | Original, Sample | | IMP-SF0703 | |