| Nostradamus Yeeon | 1993 | arcade |
| Null Drifter | 2020 | ps4, xboxone |
| Nuts | 1983 | a2600 |
| Offensive | 1981 | arcade |
| Omega Fighter | 1989 | arcade |
| Omega Fighter Special | 1989 | arcade |
| Operacion Defender | 1981 | arcade |
| Orguss | 1984 | sg1000 |
| Orius | 1991 | arcade |
| Otocky | 1987 | fds |
| Otomedius Excellent | 2011 | xbox360 |
| Otomedius Gorgeous! | 2008 | xbox360 |
| Over Horizon | 1991 | nes |
| Overdriven Reloaded: Special Edition | 2018 | xboxone |
| Override | 1991 | pcengine |
| P'Radikus Conflict | 1990 | nes |
| P-47 Aces | 1995 | arcade |
| P-47 II MD | 2025 | genesis |
| P-47: The Freedom Fighter | 1988 | arcade, pcengine |
| PC Denjin - Punkic Cyborgs | 1992 | pcengine |
| Panorama Cotton | 1994 | genesis, ps4, switch |
| Panzer Dragoon II Zwei | 1996 | saturn |
| Panzer Dragoon Orta | 2002 | xbox |
| Papillon Gals | 1990 | nes |
| Paranoia | 1990 | pcengine |
| Paranoia | 1990 | arcade |
| Parodius Da!: Shinwa kara Owarai e | 1990 | arcade, gb, nes, pcengine, snes |
| Pawarumi | 2019 | ps4, xboxone |
| Penta Dragon | 1992 | gb |
| Phalanx | 1992 | gba, snes |
| Phantom II | 1979 | arcade |
| Phelios | 1988 | arcade, genesis, wii |
| Phoenix | 1983 | a2600 |
| Pilot Kids | 1998 | arcade |
| Pink Sweets: Ibara Sorekara | 2006 | arcade |
| Pink Sweets: Suicide Club | 2017 | arcade |
| Pioneer Balloon | 1982 | arcade |
| Pistol Daimyo no Bouken | 1990 | arcade |
| PixelJunk Shooter | 2009 | ps3 |
| PixelJunk Shooter 2 | 2011 | ps3 |
| PixelJunk SideScroller | 2011 | ps3 |
| PlayStation Move Ape Escape | 2011 | ps3 |
| Plus Alpha | 1989 | arcade |
| Pocky & Rocky Reshrined | 2022 | ps4, switch |
| Pollux | 1991 | arcade |
| Polybius | 2017 | ps4 |
| Polychromatic | 2015 | xboxone |
| Postal Redux | 2020 | ps4, switch |
| Povar / Sobrat' Buran / Agroprom | | arcade |
| Power Gate | 1991 | pcengine |
| Power Strike II | 1993 | gg, sms |
| The Powerpuff Girls - Mojo Jojo A-Go-Go | 2001 | gba |
| Prehistoric Isle in 1930 | 1989 | arcade |
| Prismatic Solid | 2015 | ps4 |
| Progear | 2001 | arcade |
| Progear no Arashi | 2001 | arcade |
| Project Root | 2015 | vita, xboxone |
| Project S-11 | 2000 | gbc |
| Project Starship | 2020 | xboxone |
| Protector | 2002 | jaguar |
| Protector - Special Edition | 2002 | jaguar |
| Psikyo Shooting Collection | | ps4 |
| Psychic Storm | 1992 | pcengine |
| Psychosis | 1990 | pcengine |
| Psyvariar -Medium Unit | 2000 | arcade |
| Psyvariar -Revision | 2000 | arcade |
| Psyvariar 2 - The Will To Fabricate | 2003 | arcade |
| Pulstar | 1995 | arcade, neogeo, neogeocd |
| Purple Chicken Spaceman | 2019 | xboxone |
| R-Shark | 1995 | arcade |
| R-Type | 1987 | arcade, pcengine, sms |
| R-Type | 2009 | arcade |
| R-Type DX | 1999 | gbc |
| R-Type Final | 2003 | ps2 |
| R-Type Final 2 | 2021 | ps4, switch, xboxone |
| R-Type I | 1988 | pcengine |
| R-Type II | 1988 | pcengine |
| R-Type II | 1989 | arcade |
| R-Type II | 1997 | arcade |
| R-Type III | 1994 | snes |
| R-Type III - The Third Lightning | 1993 | snes |
| R-Type Leo | 1992 | arcade |
| RUN=DIM - Return to Earth | 2002 | wsc |
| Rabbit Punch | 1987 | arcade |
| Rabio Lepus | 1987 | arcade |
| Rabio Lepus Special | 1990 | pcengine |
| Racing Aces | 1993 | segacd |
| Radar | 1983 | a2600 |
| Radiant Silvergun | 1998 | arcade, saturn, switch |
| Radirgy | 2005 | arcade, dreamcast, gc, naomi, ps2 |
| Radirgy Noa Massive | 2010 | xbox360 |
| Rafflesia | 1986 | arcade |
| Raiden | 1990 | arcade, jaguar, lynx, pcengine |
| Raiden DX | 1994 | arcade, ps1 |
| Raiden Densetsu | 1991 | snes |
| Raiden Fighters | 1996 | arcade |
| Raiden Fighters 2 - Operation Hell Dive | 1997 | arcade |
| Raiden Fighters Jet | 1998 | arcade |
| Raiden Fighters Jet 2000 | 2000 | arcade |
| Raiden II | 1993 | arcade |