World Boxing is a boxing game released for the NES in Japan. The game likely features standard boxing gameplay, with players controlling a boxer, aiming to land punches and win matches through knockouts or points. It features the typical gameplay of other boxing games from the era, and probably includes various boxers to select or a career mode.  Additional details, such as specific features and developers, would need further research.

World Boxing (Japan)

Wizards & Warriors III - Kuros - Visions of Power (USA)