Dreamcast - G
- Garou - Mark of the Wolves
- Gauntlet Legends
- Generator - Vol1
- Generator Volume 1
- Get Bass
- Get Grind Radio
- Giant Gram
- Giant Gram - All Japan Pro Wrestling 2
- Giant Gram 2000
- Giant Gram 2000 - All Japan Pro Wrestling 3
- Giant Gram 2000 - All-Japan Pro Wrestling 3
- Giga Wing
- Giga Wing 2
- Godzilla (VMU)
- Godzilla Atsumete VMS
- Godzilla Generations
- Godzilla Generations - Maximum Impact
- Godzilla Generations Maximum Impact
- Golden Axe - Sega SP Vol1
- Golem no Maigo
- Grand Theft Auto 2
- Grand Theft Auto 2 (Grand Theft Auto 2)
- Grandia 2
- Grinch
- Guilty Gear 10
- Gunbird 2
- Gundam - Renpou vs. Zeon
- Gundam Battle Online
- Gundam Side Story
- Gundam Side Story 0079
- Gundam Side Story 0079 - RFTA
- Gundam Side Story 0079 - Rise From the Ashes
- Gunspike