Most of these licensed out to Sega games were also programmed by Sega which was probably due to some contractual agreement with Nintendo. Final Fight CD on the Sega CD was just one more title in a line of these “ports” which includes Strider and Ghouls n Ghosts (featured head to head against the SNES version in the first issue of RGM).
Many popular Sega franchises came to Sega in the 1990s in the form of ports, which included Final Fight CD.
Capcom’s Final Fight was edited quite a bit on the Super Nintendo. Stages were left out, characters were changed, and audio samples weren’t present.
Sega aimed to fix these problems with their version of Final Fight on their fledgling Sega CD platform. Why this was not released on cartridge I will never understand- this SHOULD have been a cartridge release, even without the voices, cut scenes and arranged music. Bad play Sega.
People who have played the game also enjoy it. The Sega CD features all of the missing stuff that SNES gamers missed out on (and it better since it required a heftily priced add-on to enjoy). The missing level, Industrial Area Stage, ability to play as any of the three original characters and the girls have returned (though slightly edited).
Poison and Roxy are in the Sega CD version but not like they were in the arcade original. Rather than wearing booty shorts and a short shirt, they now wear spandex shorts and a much longer shirt that covers more and is less revealing.
Sega added a time attack mode to pit your individual under one life to take on waves of enemies for as long as possible. However, the Sega CD version may only have fewer enemies on screen which may be welcomed by many, or not.
Sega did an admirable job with Final Fight CD. They should have released it on cartridge, just like a few other Sega CD games were on cartridge. By the time Final Fight CD came out, it was done for the Sega CD, rather than system seller.
The game released in the 1990s contains various platforms, including iOS, Game Boy Advance, X68000 (coming in issue two of RGM), PSP, PS2, Xbox and the Super Nintendo.