| Nintendo GBA cart. |  Mario & Luigi - Superstar Saga Model AGB-A88E-USA | 2003 | Nintendo of America, Inc. USA 45496 |
| Nintendo GBA cart. | Mario & Luigi - Superstar Saga Model AGB-A88P | 2003 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. | Mario & Luigi RPG Model AGB-A88J-JPN | 2003 | Nintendo Co., Ltd. Japan |
| Nintendo GameCube disc | Mario Golf - Family Tour | 2003 | Nintendo Co., Ltd. Japan |
| Nintendo GameCube disc | Mario Golf - Toadstool Tour Model DOL-GFTE-USA | 2003 | Nintendo of America, Inc. USA 45496 |
| Nintendo GameCube disc | Mario Kart - Double Dash!! Model DOL-GM4E-USA | 2003 | Nintendo of America, Inc. USA 45496 |
| Nintendo GameCube disc | Mario Kart - Double Dash!! Model DOL-GM4J-JPN | 2003 | Nintendo Co., Ltd. Japan |
| Nintendo GameCube disc |  Mario Kart - Double Dash!! Model DOL-GM4P-EUR | 2003 | Nintendo Co., Ltd. Japan |
| Nintendo GameCube disc | Mario Party 5 Model DOL-GP5E-USA | 2003 | Nintendo of America, Inc. USA 45496 |
| Nintendo GameCube disc | Mario Party 5 Model DOL-GP5P-EUR | 2003 | Nintendo Co., Ltd. Japan |
| Sony PlayStation CD | Marl Jong!! Model SLPS-03537 | 2003 | Nippon Ichi Soft., Inc. Japan |
| Sony PlayStation CD | Marl Jong!! Model SLPS-03538 | 2003 | Nippon Ichi Soft., Inc. Japan |
| Slot Machine | Marvellous Magic Model WMH-208MM | 2003 | Paokai Electronic Enterprise Co., Ltd. Taiwan |
| PC/MS-Windows CD | Mary-Kate and Ashley - Crush Course | 2003 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Nintendo GameCube disc | Mary-Kate and Ashley: Sweet 16 - Licensed to Drive Model DOL-GMAE-USA | 2003 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Video Slot Machine | Maski-Show | 2003 | Extrema Intersystems |
| PC/MS-Windows CD | Master of Orion III | 2003 | Infogrames, Inc. NY, USA 42725 |
| IBM PC/AT DOS pack. | MasterMind | 2003 | Dunfield, Dave |
| Nintendo GBA cart. | Matantei Loki Ragnarok - Gensou no Labyrinth Model AGB-BMRJ-JPN | 2003 | J-Wing |
| Slot Machine | Match Game | 2003 | WMS Gaming, Inc. Chicago, IL, USA |
| LeapFrog Leapster cart. | Math Baseball | 2003 | LeapFrog |
| PC/MS-Windows CD | Matte? | 2003 | Complet's |
| Takara e-Kara cart. | Matthew's Best Hit Selection Model EC0082-MBH | 2003 | Takara Co., Ltd. Japan |
| PC/MS-Windows CD | Max Payne 2 - The Fall of Max Payne | 2003 | Take-Two Interactive |
| Microsoft XBOX disc | Max Payne 2 - The Fall of Max Payne | 2003 | Unknown |
| Nintendo GBA cart. | Max Payne Model AGB-BMEE-USA | 2003 | Rockstar Games |
| Sammy Atomiswave cart. | Maximum Speed | 2003 | Sammy Corp. Japan |
| Nintendo GBA cart. | Medabots - Metabee Version Model AGB-A8BE-USA | 2003 | Natsume, Inc. Japan |
| Nintendo GBA cart. | Medabots - Metabee Version Model AGB-A8BP | 2003 | Natsume, Inc. Japan |
| Nintendo GBA cart. | Medabots - Rokusho Version Model AGB-A9BE-USA | 2003 | Natsume, Inc. Japan |
| Nintendo GBA cart. | Medabots - Rokusho Version Model AGB-A9BP | 2003 | Natsume, Inc. Japan |
| Nintendo GBA cart. | Medabots AX - Metabee Version Model AGB-AK8E-USA | 2003 | Natsume, Inc. Japan |
| Nintendo GBA cart. | Medabots AX - Metabee Version Model AGB-AK8P | 2003 | Natsume, Inc. Japan |
| Nintendo GBA cart. | Medabots AX - Rokusho Version Model AGB-AK9P | 2003 | Natsume, Inc. Japan |
| Nintendo GameCube disc | Medabots Infinity Model DOL-GM6E-USA | 2003 | Natsume, Inc. Japan |
| PC/MS-Windows CD | Medal of Honor - Allied Assault - Breakthrough | 2003 | Electronic Arts CA, USA 14633 |
| Nintendo GBA cart. | Medal of Honor - Infiltrator Model AGB-BMHE-USA | 2003 | EA Games Electronic Arts, Inc. |
| Nintendo GBA cart. | Medal of Honor - Infiltrator Model AGB-BMHP-EUR | 2003 | EA Games Electronic Arts, Inc. |
| Microsoft XBOX disc | Medal of Honor - Rising Sun | 2003 | Unknown |
| Nintendo GameCube disc | Medal of Honor - Rising Sun Model DOL-GR8D-NOE | 2003 | Electronic Arts CA, USA 14633 |
