Click here to download the ROM: Ottos-Ottifanten-E

Click here to download the ROM: Otoko-Jyuku-J

Click here to download the ROM: Othello-World-J-S

Click here to download the ROM: Otogi-Banasi-Tai-J-S

Click here to download the ROM: Othello-J

Click here to download the ROM: Othello-UE-

Click here to download the ROM: Osawagase-Penguin-Boy-J-

Click here to download the ROM: Operation-C-U-

Click here to download the ROM: Oni-5-Innin-wo-Tsugumono-J-S

Click here to download the ROM: Onigashima-Pachinko-Ten-J-