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 kb536
Olympic Gold (Europe)220.45 kb385
Olympic Gold (Europe) (En,Fr,De,Es,It,Nl,Pt,Sv)220.51 kb350
Olympic Gold (Japan, USA) (En,Fr,De,Es,It,Nl,Pt,Sv) (Rev A)220.79 kb464
Olympic Gold (Japan, USA) (Rev A)220.74 kb446
Olympic Gold (USA)220.48 kb490
Olympic Gold (USA) (Alt 1)391.66 kb318
Olympic Gold (USA) (En,Fr,De,Es,It,Nl,Pt,Sv)220.53 kb348
Olympic Gold (USA) (En,Fr,De,Es,It,Nl,Pt,Sv) (Alt 1)391.72 kb330
Olympic Summer Games (USA, Europe)575.21 kb632
On Dal Jang Goon (Korea)275.36 kb343
Onslaught (USA, Europe) (Unl)203.40 kb517
Ooze, The (Europe)469.57 kb460
Ooze, The (Japan, USA)468.76 kb901
Operation Europe - Path to Victory 1939-45 (USA)552.89 kb529
Osomatsu-kun Hachamecha Gekijou (Japan)125.51 kb566
Ottifants, The (Europe)387.75 kb521
Ottifants, The (Germany) (Beta)328.87 kb313
Out of this World (USA)402.96 kb808
Outlander (Europe)370.50 kb390
Outlander (USA)370.31 kb671
OutRun (Japan)445.72 kb825
OutRun (USA, Europe)436.10 kb1789
OutRun (USA, Europe) (Sega Smash Pack)436.25 kb461
OutRun 2019 (Europe)463.01 kb554
OutRun 2019 (Japan)462.80 kb665
OutRun 2019 (USA)463.06 kb1064
OutRun 2019 (USA) (Beta)462.92 kb348
OutRunners (Japan)850.76 kb683
OutRunners (USA)854.23 kb1045
Ozaki Naomichi no Super Masters (Japan)258.54 kb477