The reason for the Balrog/Vega/M. Bison change is this: Balrog (Here) is Mike Bison in Japan. Who was a ultra famous black boxer in America in the early 90s? Hmmm...He had his own version of Punch Out on the NES...Ah, Mike Tyson! Do you want Tyson to sue/beat/bite the fuck out of you? No! So, they changed three names around to where it fit somewhat. History my younger brethren, History!