| Slot Machine |  Magic Hat | 2003 | Octavian Italy srl Bussolengo, VR, Italy |
| Slot Machine | Magic Money | 2003 | AGI Austrian Gaming Industries Novomatic Group |
| Pachislot | Magic Monster | 2003 | Olympia Co., Ltd. Japan |
| Bingo | Magic Screen | 2003 | Sirmo Belgium |
| Slot Machine | Magic Sky | 2003 | Subsino Co., Ltd. |
| Video Slot Machine | Magic Slot | 2003 | GMS Co., Ltd. Game Master System Taipei, Taiwan |
| PC/MS-Windows CD | Magic The Gathering - Battlegrounds | 2003 | Atari Interactive, Inc. |
| Pachinko | Magical Carpet | 2003 | Sankyo Tokyo, Japan |
| Pachinko | Magical Pachinko Cotton | 2003 | Daiichi Denshi |
| Fruit Machine | Magnificent 7's | 2003 | Vivid Gaming England |
| Arcade Video game | Mahjong China Girl | 2003 | Techno-Top, Ltd. Japan |
| Arcade Video game | Mahjong Dai-Reach | 2003 | Techno-Top, Ltd. Japan |
| Arcade Video game | Mahjong Fight Club 2 | 2003 | Konami Corp. Japan |
| Arcade Video game | Mahjong Taketori Densetsu | 2003 | Techno-Top, Ltd. Japan |
| Arcade Video game | Mahjong Taketori Densetsu Deluxe | 2003 | Techno-Top, Ltd. Japan |
| Nintendo GameCube disc | Mahoo no Pumpkin - Anne to Greg no daiboken | 2003 | MTO, Inc. Japan |
| Nintendo GBA cart. | Mahou no Pumpkin - Ann to Greg no Daibouken Model AGB-AWNJ-JPN | 2003 | MTO, Inc. Japan |
| Sega Dreamcast GD | Majo no Ochakai Model T-20124M | 2003 | Nec InterChannel, Ltd. Japan |
| Nintendo GBA cart. | Majokko Cream-chan no Gokko Series 1 - Wannyan Idol Gakuen Model AGB-BWAJ-JPN | 2003 | Culture Brain |
| Slot Machine | Major Slot | 2003 | Subsino Co., Ltd. |
| Sony PlayStation CD |  Major Wave Arcade Hits: Soukyuugurentai - Oubu Shustugeki Model SLPM-87255 | 2003 | Hamster Japan |
| Sony PlayStation CD | Major Wave Arcade Hits: Wolf Fang - Ku-U-Ga 2001 Model SLPM-87270 | 2003 | Hamster Japan |
| Sony PlayStation CD | Major Wave Series: Azito Model SLPM-87284 | 2003 | Hamster Japan |
| Sony PlayStation CD | Major Wave Series: Block Kuzushi - Kowashite Help! Model SLPM-87236 | 2003 | Hamster Japan |
| Sony PlayStation CD | Major Wave Series: Hyouryuu Ki - The Reportage Beyond the Sea Model SLPM-87229 | 2003 | Hamster Japan |
| Sony PlayStation CD | Major Wave: Family Bowling Model SLPM-87225 | 2003 | Hamster Japan |
| Sony PlayStation CD | Major Wave: Shienryu Model SLPM-87228 | 2003 | Hamster Japan |
| Sony PlayStation CD | MajorWave Series: The Famires - Shijou Saikyou no Menu Model SLPM-87254 | 2003 | Hamster Japan |
| iQue Player pack. | Malìou Kadingche | 2003 | IQue China |
| iQue Player pack. | Malìou Yisheng | 2003 | IQue China |
| PC/MS-Windows CD | Mamanyonyo 18 | 2003 | Alicesoft Japan |
| PC/MS-Windows CD | Mamatoto - A Record of War Model ALS-0035A 18 | 2003 | Alicesoft Japan |
| PC/MS-Windows CD | Manhwa Wangguk - Nae Chin'gu Kkeobeongi | 2003 | Samsung Korea |
| Sinclair ZX Spectrum cass. | Manic Miner 4 - Special Edition Hb | 2003 | Broadsoft |
| Sinclair ZX Spectrum cass. | Manic Miner ZX81 Hb | 2003 | Martinik, Ales |
| Slot Machine | Mardi Gras Madness | 2003 | WMS Gaming, Inc. Chicago, IL, USA |
| Nintendo GBA cart. | Marie, Elie & Anis no Atelier - Soyokaze kara no Dengon Model AGB-ANSJ-JPN | 2003 | Banpresto Japan |
| Arcade Video game | Marine Battle Arcade | 2003 | Aruze Corp. Japan |
| Pachislot | Marine Carnival | 2003 | Aristocrat Technologies Co., Ltd. Tokyo, Japan |
| Slot Machine | Marine Circus | 2003 | Subsino Co., Ltd. |
