Sega Genesis ROMs
Letter: M
- M-1 Abrams Battle Tank
- Madden NFL '94
- Madden NFL '95
- Madden NFL '96
- Madden NFL '97
- Madden NFL '98
- Madonna Songs for 50HZ
- Madou Monogatari I (Japan)
- Magic Girl
- Magic School Bus
- Magical Christmas Greetings
- Magical Hat no Buttobi Turbo! Daibouken (Japan)
- Magical Rip Intro 2
- Magical Rip Intro 3
- Magical Rip Intro 4
- Magical Rip Intro 5
- Magical Rip Intro 6
- Magical Taruruuto-Kun (Japan)
- Mahjong Club (Japan)
- Mahjong Cop Ryuu - Shiro Ookami no Yabou (Japan)
- Mahjong Lover (China)
- Majikaru Hashito no Butsutobi Turbo! Daibouken (Japan)
- Mamono Hunter Yohko - Makai Kara no Tenkosei (Japan)
- Mamono Hunter Youko - Dai 7 no Keishou (Japan)
- Man Overboard! (Europe)
- Maou Renjishi (Japan)
- Marble Madness
- Marko's Magic Football
- Marko's Magic Football (Europe)
- Marsupilami
- Marsupilami (Europe)
- Marvel Land
- Marvel Land (Japan)
- Mary Shelley's Frankenstein
- Master of Monsters
- Master of Monsters (Japan)
- Master of Weapon (Japan)
- Maten Densetsu (Japan)
- Maten no Soumetsu (Japan)
- Math Blaster - Episode 1
- Matrix Movie Intro
- Mazin Saga (Asia)
- Mazin Saga (Japan)
- Mazin Saga Mutant Figher
- Mazin Wars (Europe)
- McDonald's Treasure Land Adventure
- McDonald's Treasure Land Adventure (Europe)
- McDonald's Treasure Land Adventure (Japan)
- Mega Anser (Japan)
- Mega Bomberman
- Mega Bomberman (Europe)
- Mega Games 10 (Brazil)
- Mega Games 2 (Europe)
- Mega Games 3 (Europe)
- Mega Games 6 Vol. 1 (Europe)
- Mega Games 6 Vol. 2 (Europe)
- Mega Games 6 Vol. 3 (Europe)
- Mega Games I (Europe)
- Mega Lo Mania (Europe)
- Mega Man - The Wily Wars (Europe)
- Mega Q - The Party Quiz Game
- Mega SWIV (Europe)
- Mega Turrican
- Mega Turrican (Europe)
- Mega-Lo-Mania (Japan)
- MegaGames 3in1 Vol 1
- MegaGames 3in1 Vol 2
- MegaGames 3in1 Vol 3
- MegaGames 4in1
- MegaGames 6in1
- MegaPanel (Japan)
- MegaTrax (Japan)
- Menacer 6-Game Cartridge
- Mercs
- Metal Fangs (Japan)
- Metal Head
- Michael Jackson's Moonwalker
- Mick & Mack as the Global Gladiators
- Mickey Mania - The Timeless Adventures of Mickey Mouse (Europe)
- Mickey Mania - The Timeless Adventures of Mickey Mouse (Japan)
- Mickey Mania - Timeless Adventures of Mickey Mouse
- Mickey Mouse - Castle of Illusion
- Mickey Mouse - Fantasia
- Mickey Mouse - Great Circus Mystery
- Mickey Mouse - Minnie's Magical Adventure 2
- Mickey Mouse - World of Illusion
- Mickey's Ultimate Challenge
- Micro Machines
- Micro Machines '96
- Micro Machines 2 - Turbo Tournament (Europe)
- Micro Machines Military - It's a Blast! (Europe)
- Micro Machines Turbo Tournament 96 (Europe)
- Midnight Resistance
- Midnight Resistance (Japan)
- Midway Presents Arcade's Greatest Hits (Europe)
- Mig-29 Fighter Pilot
- Mig-29 Fighter Pilot (Europe)
- Mig-29 Fighter Pilot (Japan)
- Mig-29 Fulcrum
- Might and Magic II - Gates to Another World
- Might and Magic III - Isles of Terra
- Mighty Max
- Mighty Morphin Power Rangers
- Mighty Morphin Power Rangers (Europe)
- Mighty Morphin Power Rangers - The Movie
- Mighty Morphin Power Rangers - The Movie (Europe)
- Mike Ditka Power Football
- Minato no Traysia (Japan)
- Mine Demo V0.03
- Minnesota Fats Pool Legend
- Miracle Piano Teaching System
- Misadventures of Flink
- MLBPA Baseball
- MLBPA Sports Talk Baseball (Japan)
- Monica na Terra dos Monstros
- Monopoly
- Monster World IV (Japan)
- Moonbase V0.06
- Mortal Combat 5
- Mortal Kombat
- Mortal Kombat 2
- Mortal Kombat 3
- Mortal Kombat 3 (Europe)
- Motocross Championship
- Mr. Nutz (Europe)
- Ms. Pac-Man
- Mugen Senshi Valis (Japan)
- Muhammad Ali Heavyweight Boxing
- Muhammad Ali Heavyweight Boxing (Europe)
- Mulan (China)
- Multitap - IO Sample Program
- MUSHA - Metallic Uniframe Super Hybrid Armor
- Musha Aleste - Full Metal Fighter Ellinor (Japan)
- Mutant League Football
- Mutant League Football (Japan)
- Mutant League Hockey
- Mystic Defender
- Mystical Fighter