Name Format Release date
O-to-gi XBX 
Obscure XBX 
Oddworld Fangus XBX 
Oddworld: Munch's Odysee XBX 
Oddworld: Stranger XBX 
Off Road - Wide Open XBX 
Onechanbara: Bikini Samurai Squad 360 
Operation Darkness 360 
Operation Flashpoint 2: Dragon Rising 360 
Operation Flashpoint 3 360 
Operation Flashpoint: Cold War Crisis XBX 
Operation Flashpoint: Elite XBX 
Operation Flashpoint: Red River 360 
Orchid XBX 
Ori And The Blind Forest One 
Otogi 2 XBX 
Otogi: Myth of Demons XBX 
Outlaw Golf XBX 
Outlaw Golf 2 XBX 
Outlaw Tennis XBX 
Outlaw Volleyball XBX 
Outrun 2 XBX 
OutRun 2006: Coast 2 Coast XBX 
OutRun Online Arcade 360 
Outrun: Coast to Coast XBX 
Over G Fighters 360 
Over The Hedge XBX 
Overlord 360 
Overlord II 360