| Arcade Video game |  Mogu Rapper | 1999 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Slot Machine | Mohican's Pride | 1999 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | Momotarou Dentetsu V + Battle Bombee 2 - Sukkiri Momoaji Model SLPS-02456~7 | 1999 | Hudson Soft. Hudson Group Japan |
| Sony PlayStation CD | Momotarou Dentetsu V Model SLPS-02458 | 1999 | Hudson Soft. Hudson Group Japan |
| Sony PlayStation CD |  Monaco Grand Prix - Racing Simulation 2 demo Model SLED-01901 | 1999 | UBI Soft Creteil, France 307211 |
| Sony PlayStation CD |  Monaco Grand Prix - Racing Simulation 2 Model SLES-01665 | 1999 | UBI Soft Creteil, France 307211 |
| Sony PlayStation CD | Monaco Grand Prix - Racing Simulation 2 Model SLES-01691 | 1999 | UBI Soft Creteil, France 307211 |
| Sony PlayStation CD | Monaco Grand Prix - Racing Simulation 2 Model SLPS-02106 | 1999 | UBI Soft Creteil, France 307211 |
| Sega Dreamcast GD | Monaco Grand Prix - Racing Simulation 2 Model T-17701D-50 | 1999 | UBI Soft Creteil, France 307211 |
| Sega Dreamcast GD | Monaco Grand Prix - Racing Simulation 2 Model T-17701M | 1999 | UBI Soft Creteil, France 307211 |
| Nintendo 64 cart. | Monaco Grand Prix Model NUS-NMGE-USA | 1999 | UBI Soft Ent., Inc. San Francisco, CA, USA 08888 |
| Sony PlayStation CD | Monaco Grand Prix Model SLUS-00834 | 1999 | UBI Soft Creteil, France 307211 |
| Sega Dreamcast GD | Monaco Grand Prix Model T-17701M | 1999 | UBI Soft Creteil, France 307211 |
| Sega Dreamcast GD | Monaco Grand Prix Model T-17701N | 1999 | UBI Soft Creteil, France 307211 |
| Pachinko | Monakist Dozen | 1999 | Okumura Japan |
| Pachinko | Monakist Fire | 1999 | Okumura Japan |
| Pachinko | Monakist World Model 2 | 1999 | Okumura Japan |
| Slot Machine | Money Grab | 1999 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Money Power Model GG754 | 1999 | Konami Co., Ltd. Japan |
| Video Slot Machine | Money to Burn | 1999 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Money Tree | 1999 | WMS Gaming, Inc. Chicago, IL, USA |
| Redemption game (mechanical) | Monkey Bingo | 1999 | Kusuno |
| Sony PlayStation CD | Monkey Hero Model SLUS-00765 | 1999 | Take-Two Interactive |
| Sony PlayStation CD | Monkey Magic Model SLUS-00930 | 1999 | SUNSOFT Sun Corp. of America IL, USA |
| Nintendo 64 cart. | Monopoly | 1999 | Hasbro Interactive, Inc. |
| Handheld game | Monopoly | 1999 | WMS Gaming, Inc. Chicago, IL, USA |
| Tiger game.com cart. | Monopoly | 1999 | Tiger Electronic Toys, Inc. Orchard Mundelein, IL, USA |
| Nintendo Game Boy Color cart. | Monopoly Model DMG-ANOE-USA | 1999 | Majesco Sales, Inc. |
| Sony PlayStation CD | Monster Collection - Kamen no Madoushi Model SLPS-02245 | 1999 | Kadokawa Shoten Japan |
| Sony PlayStation CD | Monster Complete World Model SLPS-01870 | 1999 | Idea Factory Co., Ltd. Japan |
| Sony PlayStation CD | Monster Farm 2 Model SLPS-01906 | 1999 | Tecmo, Ltd. Tokyo, Japan |
| Nintendo Game Boy Color cart. | Monster Farm Battle Card GB Model DMG-A6TJ-JPN | 1999 | Tecmo, Ltd. Tokyo, Japan |
| Sony PlayStation CD | Monster Punish Model SLPS-02491 | 1999 | Teichiku Co., Ltd. Japan |
| Nintendo Game Boy Color cart. | Monster Race 2 Model DMG-AMWJ-JPN | 1999 | KOEI Co., Ltd. Japan |
| Sony PlayStation CD | Monster Rancher 2 demo Model SLUS-90071 | 1999 | Tecmo, Inc. CA, USA |
| Sony PlayStation CD | Monster Rancher 2 Model SLUS-00917 | 1999 | Tecmo, Inc. CA, USA |
| Nintendo 64 cart. | Monster Truck Madness 64 | 1999 | Rockstar Games |
| Sony PlayStation CD | MonsterSeed Model SLES-01540 | 1999 | SUNSOFT Kounan, Japan |
| Sony PlayStation CD | MonsterSeed Model SLUS-00743 | 1999 | SUNSOFT Sun Corp. of America IL, USA |
| Pachislot | Monte Carlo | 1999 | IGT-Japan KK Japan |
