One Piece: Round the Land!
2
Action - Platformer - Beat'em up | 1 player | 2004
1
Operation WinBack
3
Action | 2 players | 2001
Oni
4
Action | 1 player | 2001
1
Omega Boost
2
Action - Shooter | 1 player | 1999
4
Onimusha: Dawn of Dreams
15
Action - Adventure | 2 players | 2006
Onimusha 2: Samurai's Destiny
17
Action - Adventure | 1 player | 2002
5
Onimusha 3: Demon Siege
12
Action - Adventure | 1 player | 2004
10
Onimusha: Warlords
11
Action - Adventure | 1 player | 2001
1
Odin Sphere
7
Action - RPG | 1 player | 2008
9
Okami
42
Action - Adventure | 1 player | 2007
O.D.T.: Escape... Or Die Trying
1
Action - Adventure - RPG | 1 player | 1998
One Piece Mansion
1
Action - Strategy | 1 player | 2001
1
Oddworld Adventures
1
Action | 1 player | 1998
Operation Thunderbolt
1
Action - Shooter | 1 player | 1994
Out to Lunch
Action - Platformer | 2 players | 1993
Oddworld Adventures II
4
Action - Platformer | 1 player | 2000
Open Season
1
Action - Platformer | 1 player | 2006
Onna Sansirou - Typhoon Gal
1
Action | 2 players | 1985
21
Oddworld : L'Exode d'Abe
26
Action - Platformer - Reflexion | 2 players | 1998
20
Oddworld : L'Odyssée d'Abe
69
Action - Platformer - Reflexion | 2 players | 1997
1
Outlander
2
Action - Racing | 1 player | 1992
Ozzy & Drix
1
Action - Platformer | 1 player | 2003
Operation Armored Liberty
1
Action | 1 player | 2003
Oddworld: Munch's Oddysee
2
Action - Platformer - Reflexion | 1 player | 2003
Operation Logic Bomb
Action - Shooter | 1 player | 1993
Obitus
Action - RPG | 1 player | 1994
1
On the Ball
1
Action | 2 players | 1992