James 'Buster' Douglas Knockout Boxing © 1990 SEGA of America, Inc.
Description from the back cover:
This is your chance, big guy! James 'Buster' Douglas Knockout Boxing™ throws you into the ring with the meanest power-punchers around. Pound your way to the title in a game designed with input from James 'Buster' Douglas, the boxer who beat Mike Tyson.
Slug and jab with devastating accuracy. Daze your opponent with a flurry of straight shots and hooks, then send him to the convos with some vicious uppercuts.
Be one of five boxers, including 'Buster' Douglas. Each fighter has his own style and characteristics, making every fight a whole new challenge.
Once you win the title, you better be prepared to defend it. Each fighter will come back madder and meaner! If you're looking for a real boxing challenge, James 'Buster' Douglas is looking for you!
GAME ID: 7063
Developed in Japan but released outside Japan only. First in North America, then exported in Europe and Brazil.
Export releases:
[EU] "Heavyweight Champ [Model 7063]"
[BR] "Heavyweight Champ [Model 024180]"
Game's ROM.