This is the XBLA version in widescreen played on the Xbox 360. Originally released on Sega's Naomi arcade hardware in 2000. Ported later that year to the Sega Dreamcast. The game has also seen physical releases on the original Xbox and PS2. Digital releases existed on Xbox 360, PS3, and even iOS. Unfortunately, all of the digital releases have been delisted since the end of 2013.