| Nintendo DS cart. |  Madden NFL 2005 | 2004 | Electronic Arts CA, USA 14633 |
| Nintendo GBA cart. | Madden NFL 2005 Model AGB-BMFE-USA | 2004 | EA Sports |
| Nintendo GameCube disc | Madden NFL 2005 Model DOL-GNQE-USA | 2004 | Electronic Arts CA, USA 14633 |
| Sony PlayStation CD | Madden NFL 2005 Model SLUS-01584 | 2004 | Electronic Arts CA, USA 14633 |
| Slot Machine | Made of Money | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Magic 7 | 2004 | Astro Corp. Taipei, Taiwan |
| Redemption mechanical game | Magic 7 | 2004 | Harry Levy Amusements |
| Pachislot | Magic BAR 30-Pai | 2004 | Bellco Corp. Japan |
| Slot Machine | Magic Hall | 2004 | Subsino Co., Ltd. |
| Medal video game | Magic Lamp | 2004 | Unknown Korea |
| Slot Machine | Magic Lantern Model WMH-208ML | 2004 | Paokai Electronic Enterprise Co., Ltd. Taiwan |
| Slot Machine | Magical Nights | 2004 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Pachinko | Magical Tour | 2004 | AAA Ace Active Amusement Japan |
| Slot Machine | Magician | 2004 | Magic Dreams |
| Slot Machine | Magnus | 2004 | Panther |
| Arcade Video game | Mahjong Fight Club 3 | 2004 | Konami Corp. Japan |
| Arcade Video game | Mahjong Hot Momotarou | 2004 | Techno-Top, Ltd. Japan |
| Arcade Video game | Mahjong Hot Sushi | 2004 | Techno-Top, Ltd. Japan |
| Medal video game | Mahjong Momotarou | 2004 | Techno-Top, Ltd. Japan |
| Arcade Video game | Mahjong Nigirichou | 2004 | Techno-Top, Ltd. Japan |
| Arcade Video game | Mahjong Sushi | 2004 | Techno-Top, Ltd. Japan |
| Pachislot | Mahouno Haibi | 2004 | Pioneer Co., Ltd. Japan |
| Pachinko | Maimu | 2004 | Sansei R&D Japan |
| PC/MS-Windows DVD | Majo no Shokuzai Model ALS-0054 | 2004 | Alicesoft Japan |
| Nintendo GBA cart. | Majokko Cream-chan no Gokko Series 2 - Kisekae Angel Model AGB-BE2J-JPN | 2004 | Culture Brain |
| Redemption mechanical game | Major League | 2004 | 5 Star Redemption, Inc. Los Angeles, CA, USA |
| Slot Machine | Make It Pay | 2004 | IGT International Game Technologies Reno, NV, USA |
| Redemption mechanical game | Make It! Take It! | 2004 | American Alpha, Inc. Monmouth Junction, NJ, USA |
| PC/MS-Windows CD | Manhunt | 2004 | Rockstar Games |
| Sinclair ZX Spectrum cass. | Manic Miner: Jet Set Willy Hb | 2004 | Broadsoft |
| Slot Machine | Maquina Latina | 2004 | IGT International Game Technologies Reno, NV, USA |
| Nokia N-Gage card | Marcel Desailly Pro Soccer Model 0630797 | 2004 | Gameloft S.A. France |
| Slot Machine | Marco Polo | 2004 | AGI Austrian Gaming Industries Novomatic Group |
| Slot Machine | Marco Polo | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Marilyn Monroe Starring in the Million Dollar Jewels | 2004 | IGT International Game Technologies Reno, NV, USA |
| Pachislot | Marine Panic | 2004 | Abilit Japan |
| Nintendo GBA cart. | Mario Golf - Advance Tour Model AGB-BMGE-USA | 2004 | Nintendo of America, Inc. USA 45496 |
| Nintendo GBA cart. | Mario Golf - Advance Tour Model AGB-BMGP | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. |  Mario Golf - Advance Tour Model AGB-BMGU-AUS | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. | Mario Golf - GBA Tour Model AGB-BMGJ-JPN | 2004 | Nintendo Co., Ltd. Japan |
