The US release of Riddick Bowe Boxing shared the core boxing gameplay experience with its European counterpart. Players likely controlled Riddick Bowe and engaged in boxing matches using the Game Boy's directional pad and buttons.  Information on the specific developer for the US release is limited, but it showcases the popularity of boxing games and licensed sports titles on the Game Boy in America. 

Riddick Bowe Boxing (USA)

Rentaiou (Japan)