| Makaimura | 1985 | arcade, nes |
| Makaimura Gaiden - The Demon Darkness | 1993 | gb |
| Makyou Densetsu | 1988 | pcengine |
| Maldita Castilla EX | 2016 | ps4 |
| Malen'kaya Rusalochka | 1994 | nes |
| Mali & Lugi Fighting 2 | 1993 | nes |
| Mali Boss | 1991 | nes |
| Malice | 2004 | ps2, xbox |
| Mamono Hunter Youko - Dai 7 no Keishou | 1991 | genesis |
| Manganga | 2020 | genesis |
| Mappy | 1983 | arcade, gg, nes |
| Mappy Kids | 1989 | nes |
| Mappy-Land | 1986 | nes |
| Marble Void | 2017 | xboxone |
| Marchen Maze | 1988 | arcade |
| Mario 16 | 1993 | nes |
| Mario 3 - Around the World | 2011 | genesis |
| Mario 4 - Space Odyssey | 2011 | genesis |
| Mario Bros | 1983 | a2600, a5200, a7800, arcade, nes |
| Mario Clash | 1995 | vb |
| Mario DX | | gba |
| Mario VB | 2008 | vb |
| Mario and Donkey Kong - Mini Mini Carnival | 2013 | 3ds |
| Mario to Wario | 1993 | snes |
| Mario vs. Donkey Kong | 2024 | switch |
| Mario vs. Donkey Kong - Minna de Mini-Land | 2015 | 3ds |
| Marko | 1994 | segacd |
| Marko's Magic Football | 1993 | genesis, gg, segacd, snes |
| Marsupilami: Hoobadventure | 2021 | ps4 |
| Maru's Mission | 1991 | gb |
| Maru's Quest | 1994 | snes |
| Marvel Land | 1989 | arcade, genesis, wii |
| Marvin's Marvellous Adventure | 1994 | cd32 |
| Mary Pizza Pop! | 1992 | nes |
| Mary-Kate and Ashley - Crush Course | 2001 | gbc |
| Masao | 1983 | arcade |
| Mashin Eiyuuden Wataru | 1988 | pcengine |
| The Mask of Zorro | 2000 | gbc |
| Master Chu and the Drunkard Hu | 1989 | nes |
| Master of Darkness | 1992 | gg, sms |
| Masters of the Universe - The Power of He-Man | 1984 | col |
| Mastho is Together | 2021 | switch |
| Matendouji | 1990 | nes |
| Matt Patrol | 1984 | col |
| Mawthorne 2 | 2025 | nes |
| Max | 1992 | gb |
| Max & the Magic Marker | 2011 | nds, wii |
| Max Steel - Covert Missions | | gbc |
| Max and the Magic Marker - Gold Edition | 2011 | ps3 |
| Max: The Curse of Brotherhood | 2013 | ps4, switch, xbox360, xboxone |
| Maya the Bee - Sweet Gold | 2005 | gba |
| Maya the Bee - The Great Adventure | 2002 | gba |
| Mayhem in Monsterland | 2008 | wii |
| McDonald's Treasure Land Adventure | 1993 | genesis |
| Mecho Tales | 2017 | vita, xboxone |
| Medabots AX - Metabee Ver | 2002 | gba |
| Medabots AX - Rokusho Ver | 2002 | gba |
| Medarot G - Kabuto | 2002 | gba |
| Medarot G - Kuwagata | 2002 | gba |
| Meet the Robinsons | 2007 | gba, nds |
| Mega Cheril Perils | 2017 | genesis |
| Mega Coin Squad | 2015 | ps4, xboxone |
| Mega Man | 1995 | gg |
| Mega Man | 1987 | nes, wii |
| Mega Man | 2013 | wiiu |
| Mega Man & Bass | 2003 | gba, wiiu |
| Mega Man - Dr. Wily's Revenge | 1991 | gb |
| Mega Man - Maverick Hunter X | 2006 | psp |
| Mega Man - Powered Up | 2006 | psp |
| Mega Man - The Sequel Wars - Episode Red | 2023 | genesis |
| Mega Man - The Wily Wars | 1994 | genesis |
| Mega Man 10 | 2010 | ps3, wii, xbox360 |
| Mega Man 11 | 2018 | ps4, switch, xboxone |
| Mega Man 2 | 1988 | nes |
| Mega Man 2 | 2014 | pcengine |
| Mega Man 3 | 1990 | nes |
| Mega Man 4 | 1991 | nes |
| Mega Man 5 | 1992 | nes |
| Mega Man 5 | 2011 | wii |
| Mega Man 6 | 1993 | nes |
| Mega Man 9 | 2008 | ps3 |
| Mega Man 9 | 2008 | wii, xbox360 |
| Mega Man Anniversary Collection | 2004 | gc, ps2, xbox |
| Mega Man II | 1992 | gb |
| Mega Man II | 2015 | sms |
| Mega Man II | | snes |
| Mega Man III | 1992 | gb |
| Mega Man III | 2024 | snes |
| Mega Man IV | 1993 | gb |
| Mega Man Legacy Collection | 2015 | 3ds, ps4, switch, xboxone |
| Mega Man Legacy Collection 2 | 2017 | ps4, switch, xboxone |
| Mega Man Network Transmission | 2003 | gc |
| Mega Man V | 1994 | gb |
| Mega Man VI | 2025 | snes |
| Mega Man X | 1993 | snes, wii, wiiu |
| Mega Man X Collection | 2006 | gc, ps2 |
| Mega Man X Legacy Collection | 2018 | ps4, switch, xboxone |
| Mega Man X Legacy Collection 2 | 2018 | ps4, switch, xboxone |
| Mega Man X2 | 2012 | wii |
| Mega Man Xtreme | 2001 | 3ds, gbc |