Genesis
Browse all Genesis Games
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General and System Information
Genesis Message Board
| Genesis Hardware FAQs
| Genesis Hardware Reviews
| Genesis Answers
Games by Alpha: 'O'
| Olympic Gold | Data | FAQs | --- | Reviews | Q&A | Pics | Board |
| Olympic Gold: Barcelona '92 | Data | FAQs | --- | Reviews | Q&A | Pics | Board |
| Olympic Summer Games: Atlanta 1996 | Data | FAQs | --- | Reviews | Q&A | Pics | Board |
| Onslaught | Data | --- | Codes | --- | Q&A | Pics | Board |
| Ooze, The | Data | FAQs | --- | Reviews | Q&A | Pics | Board |
| Operation Europe | Data | FAQs | --- | Reviews | Q&A | Pics | Board |
| Osaki Tadamichi no Super Masters | Data | --- | Codes | Reviews | Q&A | Pics | Board |
| Osomatsu-kun: Hachamecha Gekijou | Data | --- | --- | --- | Q&A | Pics | Board |
| Ottifants, The | Data | --- | Codes | --- | Q&A | Pics | Board |
| Out of This World | Data | FAQs | Codes | Reviews | Q&A | Pics | Board |
| Outlander | Data | FAQs | Codes | Reviews | Q&A | Pics | Board |
| OutRun | Data | --- | Codes | Reviews | Q&A | Pics | Board |
| OutRun 2019 | Data | --- | Codes | Reviews | Q&A | Pics | Board |
| OutRunners | Data | --- | Codes | Reviews | Q&A | Pics | Board |
