| Gaia - The Last Choice of Earth | ? | 1999 |
Semicom | Commercial |
| Gaia Crusaders | ? | 1999 |
Noise Factory | Commercial |
| Gallop Racer 3 | ? | 1999 |
Tecmo | Commercial |
| Gallop Racer 3 | JP | 1999 |
Tecmo | Commercial |
| Gals Panic S2 | AS | 1999 |
Kaneko | Commercial |
| Gals Panic S2 | EU | 1999 |
Kaneko | Commercial |
| Gals Panic S2 | JP | 1999 |
Kaneko | Commercial |
| Gals Panic SU | KR | 1999 |
Kaneko | Commercial |
| Game Magic | ? | 1999 |
Bally Gaming Co | Commercial |
| Gamushara Battle! Puchi Monster | JP | 1999 |
Capcom | Commercial |
| Ganryu / Musashi Ganryuki | ? | 1999 |
Visco | Commercial |
| Gauntlet Dark Legacy | ? | 1999 |
Midway | Commercial |
| Ghoul Panic | WORLD | 1999 |
Namco | Commercial |
| Giant Gram: All Japan Pro Wrestling 2 | JP | 1999 |
Sega | Commercial |
| Go By RC | ? | 1999 |
Taito | Commercial |
| Golden Tee Royal Edition Tournament | ? | 1999 |
Incredible Technologies | Commercial |
| Golgo 13 | JP | 1999 |
Namco | Commercial |
| Goori Goori | ? | 1999 |
Unico | Commercial |
| Guitar Freaks | ? | 1999 |
Konami | Commercial |
| Guitar Freaks 2nd Mix | ? | 1999 |
Konami | Commercial |
| Guitar Freaks 2nd Mix Link Kit 1 | ? | 1999 |
Konami | Commercial |
| Guitar Freaks 2nd Mix Link Kit 2 | ? | 1999 |
Konami | Commercial |
| Guitar Freaks 2nd Mix Ver 1.01 | ? | 1999 |
Konami | Commercial |
| Guitar Freaks Ver 1.01 | ? | 1999 |
Konami | Commercial |
| Gun Gabacho | JP | 1999 |
GM Shoji | Commercial |
| Gacha Gachamp | ? | 1999-01 |
Konami | Commercial |
| Gunbarl | JP | 1999-01 |
Namco | Commercial |
| Giga Wing | AS | 1999-03 |
Capcom | Commercial |
| Giga Wing | BR | 1999-03 |
Capcom | Commercial |
| Giga Wing | JP | 1999-03 |
| Unlicensed |
| Giga Wing | JP | 1999-03 |
Capcom | Commercial |
| Giga Wing | LATAM | 1999-03 |
Capcom | Commercial |
| Giga Wing | US | 1999-03 |
| Unlicensed |
| Giga Wing | US | 1999-03 |
Capcom | Commercial |
| Golden Tee '99 | ? | 1999-03 |
Incredible Technologies | Commercial |
| Golden Tee '99 Tournament | ? | 1999-03 |
Incredible Technologies | Commercial |
| Guwange | JP | 1999-06 |
Atlus | Commercial |
| Garou - Mark of the Wolves | ? | 1999-11 |
Ydmis | Unlicensed |
| Garou - Mark of the Wolves | ? | 1999-11 |
SNK | Commercial |
| Garou - Mark of the Wolves | ? | 1999-11 |
SNK | Prototype |