 In the American version, Guile is after Bison, in the original  Japanese version he is really after Vega. This is due to the fact  that names had to be changed for legal reasons. The characters of  Balrog, M. Bison, and Vega were changed about. In the Japanese  version what Americans know as Bison is Vega, Vega is Balrog and  Balrog is M. Bison.