Ooedo Hanseiki (19xx)(Panther Software)(Disk 1 of 3)
Ooedo Hanseiki (19xx)(Panther Software)(Disk 2 of 3)
Ora Ora Ball (1995)(Ora Soft)(Disk 1 of 2)
Ora Ora Ball (1995)(Ora Soft)(Disk 2 of 2)
Ora-Shoot (1996)(Ora Soft)(Disk 2 of 2)
Ora-Shoot (1996)(Ora Soft)(Disk 1 of 2)
Ora-Shoot (1996)(Ora Soft)(Disk 2 of 2)[a]
Orange Iro No Biyaku (1989)(System House Oh!)
Original Games (2001)(Tau Software)
Otaku Dama (1999)(Mitsuky)
Otaku Dama (1999)(Mitsuky)[h]
Ougon No Buta (19xx)(Shoujo)
Ougon No Rashinban (1989)(Riverhill Soft)(Disk 1 of 3)(System)
Ougon No Rashinban (1989)(Riverhill Soft)(Disk 3 of 3)(Data)
Ougon No Rashinban (1989)(Riverhill Soft)(Disk 2 of 3)(Game)
Overtake (1992)(Zoom)(Disk 1 of 6)(System)
Overtake (1992)(Zoom)(Disk 2 of 6)(Data A)
Overtake (1992)(Zoom)(Disk 6 of 6)(Opening 2)
Overtake (1992)(Zoom)(Disk 5 of 6)(Opening 1)
Overtake (1992)(Zoom)(Disk 3 of 6)(Data B)
Overtake (1992)(Zoom)(Disk 4 of 6)(Data C)
Overtake (1992)(Zoom)(Disk 6 of 6)(Opening 2)[a]
Overtake (1992)(Zoom)(Disk 3 of 6)(Data B)[a]
Overtake (1992)(Zoom)(Disk 4 of 6)(Data C)[a]
Overtake (1992)(Zoom)(Disk 2 of 6)(Data A)[a]
Overtake (1992)(Zoom)(Disk 1 of 6)(System)[a]
Overtake (1992)(Zoom)(Disk 5 of 6)(Opening 1)[a]
Overtake (1992)(Zoom)(Disk 1 of 6)(System)[a2]
Pac-Land (1994)(Dempa)
Pac-Land (1994)(Dempa)[a]
