| Mermaid Melody - Pichi Pichi Pitch | 2003 | gba |
| Mezase Idol Star!! Natsuiro Memories - Mahjong-hen | 1996 | saturn |
| Michigan Super Draw | 1986 | arcade |
| Michinoku Hitou Koi Monogatari Kai | 1999 | ps1 |
| Mickey no Pocket Resort | 2004 | gba |
| Micro Arcade 250-in-1 | | arcade |
| Microgammon SB | 1983 | a5200 |
| Millennium Nuovo 4000 | 2000 | arcade |
| Millionaire | 1990 | nes |
| Minasan no Okagesamadesu! Dai Sugoroku Taikai | 1990 | arcade |
| Mingxing San Que Yi | 2003 | arcade |
| Mini-Moni. Dice de Pyon! | 2002 | ps1 |
| Mini-Moni. Step Pyon Pyon Pyon | 2002 | ps1 |
| Minna Atsumare! Igo Kyoushitsu | 2003 | ps1 |
| Minna de Asobou - Shanghai DS 2 | 2010 | nds |
| Minna no Mahjong DS | 2005 | nds |
| Minna no Ouji-sama | 2003 | gba |
| Minna no Shougi - Shokyuu Hen | 1999 | gbc |
| Minna no Soft Series - Happy Trump 20 | 2005 | gba |
| Minna no Soft Series - Minna no Mahjong | 2003 | gba |
| Minna no Soft Series - Minna no Shougi | 2004 | gba |
| Minnya de Ghost Hunter | 2002 | ps1 |
| Mirage Youjuu Mahjongden | 1994 | arcade |
| Miss Mahjong Contest | 1989 | arcade |
| Mizuki Shigeru no Youkai Hyakkiyakou | 1995 | snes |
| Moeru Casinyo | 2002 | arcade |
| Moeru Mahjong - Moe-Jong! | 2008 | psp |
| Momotarou Densetsu | 1987 | nes |
| Momotarou Dentetsu | 1988 | nes |
| Momotarou Dentetsu - 20 Shuunen | 2008 | nds |
| Momotarou Dentetsu - World | 2010 | nds |
| Momotarou Dentetsu 11 - Black Bonby Shutsugen! no Maki | 2004 | ps2 |
| Momotarou Dentetsu 12 - Nishi Nihon-hen mo Arimasse! | 2003 | ps2 |
| Momotarou Dentetsu 16 - Hokkaido Daiidou no Maki! | 2009 | ps2 |
| Momotarou Dentetsu 16 Gold | 2007 | xbox360 |
| Momotarou Dentetsu 2010 - Sengoku Ishin no Hero Daishuugou! no Maki | 2009 | wii |
| Momotarou Dentetsu 7 | 1997 | ps1 |
| Momotarou Dentetsu Batten - Kyushu-hen mo Arubai | 2001 | ps2 |
| Momotarou Dentetsu DS - Tokyo & Japan | 2007 | nds |
| Momotarou Dentetsu G - Gold Deck o Tsukure! | 2005 | gba |
| Momotarou Dentetsu Happy | 1996 | snes |
| Momotarou Dentetsu USA | 2004 | ps2 |
| Momotarou Dentetsu V | 1999 | ps1 |
| Momotarou Dentetsu jr. - Zenkoku Ramen Meguri no Maki | 1998 | gb |
| Momotarou Douchuuki | 1997 | saturn |
| Mongolfier New | | arcade |
| Monopoly | 1998 | gb |
| Monopoly | 1991 | gb |
| Monopoly | 2004 | gba |
| Monopoly | 1998 | gbc |
| Monopoly | 1991 | genesis, nes, snes |
| Monopoly | 1999 | n64 |
| Monopoly | 1997 | ps1 |
| Monopoly | 2008 | ps3 |
| Monopoly | 2024 | ps4 |
| Monopoly | 1988 | sms |
| Monopoly | 1993 | snes |
| Monopoly | 2017 | switch |
| Monopoly | 2008 | xbox360 |
| Monopoly Deal | 2014 | ps3, xbox360, xboxone |
| Monopoly Deal | 2014 | ps4 |
| The Monopoly Game 2 | 1995 | snes |
| Monopoly Madness | 2021 | ps4, switch, xboxone |
| Monopoly Party | 2002 | gc, ps2, xbox |
| Monopoly Plus | 2014 | ps3, ps4, xbox360, xboxone |
| Monopoly Streets | 2010 | ps3, wii, xbox360 |
| Monster Farm Battle Card | 2000 | ps1 |
| Monster Maker Kids - Ousama ni Naritai | 1994 | snes |
| Monster Monpiece | 2014 | vita |
| Monster Rancher Battle Card - Episode II | 2000 | ps1 |
| Montana Choice Multi-Game | 1994 | arcade |
| Montana Super Draw | 1990 | arcade |
| Morita Kazurou no Chess | 1999 | ps1 |
| Morita Kazurou no Gomoku Narabe to Renju | 1999 | ps1 |
| Morita Kazurou no Hanafuda | 1999 | ps1 |
| Morita Kazurou no Mahjong | 2000 | ps1 |
| Morita Kazurou no Reversi | 1999 | ps1 |
| Morita Kazurou no Shougi Doujou | 1999 | ps1 |
| Morita Shougi | 1987 | nes |
| Morita Shougi | 1997 | ps1 |
| Morita Shougi 64 | 1998 | n64 |
| Morita Shougi Advance | 2001 | gba |
| Morita Shougi PC | 1991 | pcengine |
| Morita Shougi for WonderSwan | 1999 | ws |
| Morita no Saikyou Reversi | 1999 | dreamcast |
| Morita no Saikyou Shougi | 1999 | dreamcast |
| Morskoy Boy | 1996 | nes |
| Motteke Oh! Dorobou | 1995 | snes |
| Motto Trump Shiyou yo! i-Mode de Grand Prix | 2002 | ps1 |
| Movie Card | 1998 | arcade |
| Multi Win | 1991 | arcade |
| Multi-Action 6711-14-R0A | 1992 | arcade |
| Multi-Action 7558-01-R4 | | arcade |
| Multi-Action 8340-01-R1 | | arcade |
| Multi-Action 9800-20-R0 | 1992 | arcade |
| Munchkin: Quacked Quest | 2019 | ps4 |
| Mundial/Mondial | 1987 | arcade |
| Muroge Monaco | | arcade |
| Music Sort | 1995 | arcade |
| Musoubana | 1995 | arcade |