| Sega Dreamcast GD |  Grauen no Torikago Kapitel 2 - Torikago Model HDR-0034 | 1999 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Dreamcast GD | Grauen no Torikago Kapitel 3 - Kansei Model HDR-0035 | 2000 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Dreamcast GD | Grauen no Torikago Kapitel 4 - Kaikou Model HDR-0036 | 2000 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Dreamcast GD | Grauen no Torikago Kapitel 5 - Shokuzai Model HDR-0037 | 2000 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Dreamcast GD | Grauen no Torikago Kapitel 6 - Senritsu Model HDR-0038 | 2000 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mark III card | Great Baseball Model C-505 | 1985 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. |  Great Baseball Model MK-5061-50 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Great Basketball Model MK-5071-50 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega-Tech cart. | Great Football Model 19 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Great Football Model G-1321 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Great Football Model MK-5058-50 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega-Tech cart. | Great Golf Model 04 | 1989 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Great Golf Model 5057 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mark III cart. | Great Golf Model G-1313 | 1986 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mark III cart. | Great Ice Hockey | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Great Soccer | 1985 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega-Tech cart. | Great Soccer Model 05 | 1989 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System card | Great Soccer Model 4082 | 1985 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mark III card | Great Soccer Model C-504 | 1985 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mark III card | Great Tennis Model C-515 | 1985 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Master System cart. | Great Volleyball Model 5070 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mark III cart. | Great Volleyball Model G-1317 | 1987 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega Drive cart. | Greatest Heavyweights | 1994 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Greatest Nine '96 | 1996 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Game Gear cart. | Greendog | 1993 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Guardian Heroes | 1996 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Guardian Heroes | 1996 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Guardian Heroes Model 81035 | 1996 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega SG-1000 game | Gulkave Model C-63 | 1986 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega AI Computer cart. | Gulliver Pocket Model AI-4055 | 1988 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Gun game | Gun Fight | 1970 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Arcade Video game | Gunblade NY - Special Air Assault Force | 1995 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Gungriffon | 1996 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Gungriffon Model 81046 | 1996 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega Play cart. | Gunstar Heroes | 1993 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega Drive cart. | Gunstar Heroes Model 1077-50 | 1993 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Game Gear cart. | Gunstar Heroes Model G-3349 | 1995 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega Drive cart. | Gunstar Heroes Model G-4103 | 1993 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Arcade Video game | Guttang Gottong | 1982 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Mega Drive cart. | Gynoug | 1991 | SEGA Enterprises, Ltd. Tokyo, Japan |
