Operation C
Action | 1 player | 1991
1
One Piece: Unlimited World Red
9
Action - Adventure | 2 players | 2014
Overlord: Les Larbins en Folie
Action - Adventure - Puzzle | 1 player | 2009
One Piece: Gigant Battle!
2
Fighting | 4 players | 2011
1
OSman
8
Beat'em up | 2 players | 1996
1
Out Zone
11
Shoot'em up | 2 players | 1990
1
OverKart 64
1
Action - Platformer | 4 players | 2021
Order Up!
Management - Simulation | 1 player | 2008
2
One Piece Grand Battle!
9
Fighting | 2 players | 2003
4
Oui-Oui : L'Aventure magique
5
Adventure - Edutainment | 1 player | 2000
Onimusha 2: Samurai's Destiny
17
Action - Adventure | 1 player | 2002
3
Oriental Legend
4
Beat'em up | 4 players | 1997
Odin Sphere
2
Action - RPG | 1 player | 2007
Oni
4
Action | 1 player | 2001
OpenRA
2
Strategy | 12 players | 2007
One Piece: Grand Adventure
4
Fighting | 2 players | 2006
1
Only Up 64
6
Adventure - Platformer | 1 player | 2023
1
One Must Fall 2097
1
Action - Fighting | 2 players | 1994
Oddworld: Munch's Oddysee
2
Action - Platformer - Reflexion | 1 player | 2003
1
Onimusha Tactics
1
Tactical - RPG | 1 player | 2003
Ordyne
3
Shoot'em up | 2 players | 1989
6
O.D.T.: Escape... Or Die Trying
18
Action - Adventure - RPG | 1 player | 1998
Oneesan to Issho! Janken Paradise
Adult - Strategy | 1 player | 1994
Option Tuning Car Battle 2
Racing | 2 players | 1999
Oni
2
Action - Beat'em up - Shooter | 1 player | 2001
Oscar the Balloonist Dives into the Lake
Edutainment - Adventure | 1 player | 2000
One Piece: Grand Adventure
4
Fighting | 2 players | 2006
Othello
Board game - Reflexion | 2 players | 1988
Open Sonic
2
Action - Platformer | 1 player | 2010
Obocchama-kun
Board game | 4 players | 1991
Out of This World (Beta)
Action - Adventure | 1 player | 1992
1
OverBlood 2
1
Survival - Horror | 1 player | 2001
Oregon Trail II
Adventure - Simulation - Edutainment | 1 player | 1995
One Piece Grand Battle! 3
2
Fighting | 2 players | 2003
Outpost 69: Lust in Space
Adventure - Adult | 1 player | 1996
OutRun 2019
Racing | 1 player | 1993
One
1
Action - Shooter - Platformer | 1 player | 1997
Orcs & Elves
RPG | 1 player | 2007
Oui-Oui
1
Action - Platformer | 1 player | 2000
1
Oddworld: Abe's Exoddus
Action - Platformer - Reflexion | 2 players | 1998
Oui-Oui : Grande fête au Pays des jouets
Edutainment | 1 player | 2011
Oda Nobunaga Den
Strategy - Tactical | 1 player | 1998
Oil Cap
1
Board game | 1 player | 1996
Oscar the Balloonist Drops into the Countryside
Edutainment - Adventure | 1 player | 2001
One Piece Grand Battle! Rush
Action - Fighting | 2 players | 2005
Oddworld: Abe's Oddysee
Action - Platformer - Reflexion | 2 players | 1997
1
Operation WinBack
3
Action | 2 players | 2001
1
Onimusha: Blade Warriors
3
Fighting - Action | 4 players | 2004
Oscar the Balloonist and the Secrets of the Forest
Edutainment - Adventure | 1 player | 2000
1
One Piece: Romance Dawn - Bouken no Yoake
2
RPG | 1 player | 2012