| Sega Dreamcast GD |  Gakkyuu-ou Yamazaki - Yamazaki Oukoku Daifunsou! Model HDR-0050 | 1999 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sony PlayStation CD | Gakuen Sentai Solblast Model SLPS-01852 | 1999 | Creative Heads |
| Redemption mechanical game | Galaxy Dream | 1999 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sony PlayStation CD | Galerians Model SLPS 02192~4 | 1999 | ASCII Corp. Japan |
| Pachislot | Gallop - Sammy Horse Racing | 1999 | Sammy Corp. Japan |
| Arcade Video game | Gallop Racer 3 | 1999 | Tecmo, Ltd. Tokyo, Japan |
| Sony PlayStation CD | Gallop Racer 3 Model SLPS-01981 | 1999 | Tecmo, Ltd. Tokyo, Japan |
| Sony PlayStation CD |  Gallop Racer Model SLUS-00942 | 1999 | Tecmo, Inc. CA, USA |
| Kaneko Super Nova cart. | Gals Panic S2 | 1999 | Kaneko Co., Ltd. Tokyo, Japan |
| Kaneko Super Nova cart. | Gals Panic SU | 1999 | Kaneko Co., Ltd. Tokyo, Japan |
| Nintendo Game Boy Color cart. | Game & Watch Gallery 3 Model DMG-ACQE-USA | 1999 | Nintendo of America, Inc. USA 45496 |
| Nintendo Game Boy Color cart. | Game Boy Gallery 3 Model DMG-AGQJ-JPN | 1999 | Nintendo Co., Ltd. Japan |
| PC/MS-Windows CD | Game Gallery | 1999 | Swing! Ent. Media AG |
| Video Slot Machine | Game Magic | 1999 | Bally Gaming, Inc. Las Vegas, NV, USA |
| Slot Machine | Game Stack | 1999 | WMS Gaming, Inc. Chicago, IL, USA |
| Sony PlayStation CD | Gamesoft wo Tsukurou - Let's Be a Super Game Creator Model SLPS-01607 | 1999 | Imagineer Co., Ltd. Japan |
| Medal video game | Gamushara Battle! Puchi Monster | 1999 | Capcom Co., Ltd. Japan |
| Nintendo Game Boy Color cart. | Ganbare Goemon - Mononoke Douchuu Tobisuise Nabebugyou! Model DMG-AEFJ-JPN | 1999 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Color cart. | Ganbare Goemon - Tengutou no Gyakushuu Model DMG-AGUJ-JPN | 1999 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | Ganso Family Mahjong 2 Model SLPS-02094 | 1999 | Nichibutsu Nihon Bussan Co., Ltd. Osaka, Japan |
| Bandai WonderSwan cart. | Ganso Jajamaru-kun Model SWJ-JLC001 | 1999 | JALECO Co., Ltd. Japan |
| SNK Neo-Geo MVS cart. | Garou - Mark of the Wolves Model NGM-253 | 1999 | SNK Corp. Shin Nihon Kikaku Japan |
| SNK Hyper NeoGeo 64 cart. | Garou Densetsu - Wild Ambition | 1999 | SNK Corp. Shin Nihon Kikaku Japan |
| Sony PlayStation CD |  Garou Densetsu - Wild Ambition - Taikenban Model SLPM-80446 | 1999 | SNK Corp. Shin Nihon Kikaku Japan |
| Sony PlayStation CD | Garou Densetsu - Wild Ambition Model SLPM-86236 | 1999 | SNK Corp. Shin Nihon Kikaku Japan |
| SNK Neo-Geo Pocket Color cart. | Garou Densetsu First Contact Model NEOP00110 | 1999 | SNK Corp. Shin Nihon Kikaku Japan |
| Nintendo 64 cart. | Gauntlet Legends | 1999 | Midway Home Ent. |
| Arcade Video game kit | Gauntlet Legends | 1999 | Atari Games Corp. CA, USA |
| LodgetNet Gateway System (N64) pack. | Gauntlet Legends | 1999 | LodgeNet |
| Sega Dreamcast GD |  Geist Force | 1999 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sony PlayStation CD | Geki-Oh ShienRyu Model SLPS-02056 | 1999 | Warashi, Inc. |
| Sony PlayStation CD | Gekisou Tomarunner Model SCPS-10087 | 1999 | Sony Computer Ent., Inc. SCEI Japan |
| Nintendo Game Boy Color cart. | Gem Gem Monster Model DMG-AJYJ-JPN | 1999 | KID Kindle Imagine Develop |
| Sega Dreamcast GD | Generator Vol. 1 | 1999 | SEGA of America, Inc. San Francisco, CA, USA |
| Sony PlayStation CD | Genghis Khan - Aoki Ookami to Shiroki Mejika IV Model SLPM-86175 | 1999 | KOEI Co., Ltd. Japan |
| Video Slot Machine | Genie Magic | 1999 | Aristocrat Leisure Industries Pty, Ltd. |
| MSX 2 disk | Genius Hb | 1999 | Marcelo's HP |
| Sony PlayStation CD | Germany Speziale 11-99 Model SCED-02383 | 1999 | Unknown |
| Sony PlayStation CD | Germs - Nerawareta Machi Model SLPS-02107 | 1999 | KAJ |
| Sega Dreamcast GD | Get Bass Model HDR-0012 | 1999 | SEGA Enterprises, Ltd. Tokyo, Japan |
