One Piece: Gigant Battle!
2
Fighting | 4 players | 2011
1
Operation Wolf 3
2
Shooter | 2 players | 1994
Oddworld: Munch's Oddysee
2
Adventure - Platformer | 1 player | 2001
2
Over Rev
1
Racing | 2 players | 1997
1
Odin Sphere
7
Action - RPG | 1 player | 2008
Overlord: Raising Hell
4
Action - Adventure | 1 player | 2008
Oneesan to Issho! Janken Paradise
Adult - Strategy | 1 player | 1994
3
Obscure: The Aftermath
3
Survival - Horror | 2 players | 2008
1
Omega Boost
4
Action - Shooter | 1 player | 1999
1
Operation WinBack
3
Action | 2 players | 2001
One Piece: Pirates' Carnival
3
Party game | 4 players | 2006
OutRun 2 SP
2
Racing | 6 players | 2007
One Piece: Round the Land!
2
Action - Platformer - Beat'em up | 1 player | 2004
1
Onimusha: Blade Warriors
4
Fighting - Action | 4 players | 2004
Operation Spacehog
Action - Shoot'em up | 1 player | 2000
Operation Europe: Path to Victory 1939-45
1
Strategy | 2 players | 1994
OutRunners
3
Racing | 2 players | 1994
Otoboke Ninja Colosseum
Action - Puzzle | 4 players | 1995
One Piece: Grand Adventure
4
Fighting | 2 players | 2006
1
Ogre Battle : The March of the Black Queen
1
RPG - Tactical | 1 player | 1995
One Piece: Unlimited Adventure (Undub)
2
Action - Adventure | 2 players | 2008
Out Run 3-D
1
Racing | 1 player | 1989
1
One Piece: Romance Dawn - Bouken no Yoake
2
RPG | 1 player | 2012
Olympic Summer Games
1
Sports | 1 player | 1996
1
Olympic Gold
3
Sports | 4 players | 1992
Operation C
1
Action | 1 player | 1991
Onslaught : Armoured Assault
Simulation | 1 player | 2018
Out Run
2
Action - Racing | 1 player | 1989
O.D.T. (Prototype)
Action - Adventure | 1 player | 1998
OutRun
1
Racing | 1 player | 1991
Oishii Puzzle wa Irimasen ka
Puzzle | 5 players | 1993
Outlanders
2
Action - RPG | 1 player | 1987
Otona no Gal Jan: Kimi ni Hane Man
Adult - Board game | 1 player | 2003
Ore ga Omae o Mamoru
Action - Adventure - Platformer | 1 player | 2009
Oide yo Doubutsu no Mori
1
Management - Simulation | 4 players | 2005
1
One Piece: Pirate Warriors 2
20
Beat'em up | 2 players | 2013
Operation Thunderbolt
3
Shooter | 2 players | 1988
4
Operation Wolf
9
Shooter | 1 player | 1987
Oui-Oui au Pays des jouets
Edutainment | 1 player | 2011
1
OSman
8
Beat'em up | 2 players | 1996
Oddballz: Your Wacky Computer Petz
Simulation | 1 player | 1996
Oni
2
Action - Beat'em up - Shooter | 1 player | 2001
3
OpenArena
6
FPS | 12 players | 2005
Ordyne
4
Shoot'em up | 2 players | 1990
Off-World Interceptor Extreme
Racing | 2 players | 1995
2
Out Run
4
Racing | 1 player | 1987
1
Operation Wolf
4
Shooter | 1 player | 1990
One Piece: Unlimited Adventure
1
Action - Adventure | 2 players | 2007
One Piece: Grand Battle
2
Action - Fighting | 2 players | 2005
One Piece: Grand Battle
2
Action - Fighting | 2 players | 2005