New shade of paint, made the site more mobile-friendly. Gamecube set is being updated to 1G1R in RVZ format. Enjoy!

Improved the search function ever so slightly :)

Panasonic 3DO set updated. Doubled the amount of games and converted to CHD.

Sega CD set updated. 60G of games added. NGCD set replaced.

Holiday time again! We've doubled the bandwidth to 500mbps, updated the MAME set to .226, and re-added the Saturn collection. More updates coming soon!

ROMs / Sega Genesis / Megadrive ROMs


Viewing Sega Genesis / Megadrive ROMs ROMs starting with O

Oh Mummy Genesis (World) (Unl)159.19 kb611
Olympic Gold (Europe)220.45 kb424
Olympic Gold (Europe) (En,Fr,De,Es,It,Nl,Pt,Sv)220.51 kb416
Olympic Gold (Japan, USA) (En,Fr,De,Es,It,Nl,Pt,Sv) (Rev A)220.79 kb511
Olympic Gold (Japan, USA) (Rev A)220.74 kb504
Olympic Gold (USA)220.48 kb538
Olympic Gold (USA) (Alt 1)391.66 kb347
Olympic Gold (USA) (En,Fr,De,Es,It,Nl,Pt,Sv)220.53 kb385
Olympic Gold (USA) (En,Fr,De,Es,It,Nl,Pt,Sv) (Alt 1)391.72 kb362
Olympic Summer Games (USA, Europe)575.21 kb730
On Dal Jang Goon (Korea)275.36 kb373
Onslaught (USA, Europe) (Unl)203.40 kb582
Ooze, The (Europe)469.57 kb519
Ooze, The (Japan, USA)468.76 kb1038
Operation Europe - Path to Victory 1939-45 (USA)552.89 kb610
Osomatsu-kun Hachamecha Gekijou (Japan)125.51 kb641
Ottifants, The (Europe)387.75 kb598
Ottifants, The (Germany) (Beta)328.87 kb350
Out of this World (USA)402.96 kb929
Outlander (Europe)370.50 kb434
Outlander (USA)370.31 kb767
OutRun (Japan)445.72 kb940
OutRun (USA, Europe)436.10 kb2113
OutRun (USA, Europe) (Sega Smash Pack)436.25 kb505
OutRun 2019 (Europe)463.01 kb612
OutRun 2019 (Japan)462.80 kb750
OutRun 2019 (USA)463.06 kb1214
OutRun 2019 (USA) (Beta)462.92 kb387
OutRunners (Japan)850.76 kb770
OutRunners (USA)854.23 kb1173
Ozaki Naomichi no Super Masters (Japan)258.54 kb543