Heavyweight Champ game is a ROM you can play online within your browser. This Sega Master System ROM runs in our top-notch quality emulator at PlayRoms.net only. Play Heavyweight Champ Sega Master game online in English USA version on your desktop, tablet, and mobile. If you liked playing this emulator then you will also be interested in similar classic titles Greatest Heavyweights of the Ring and Muhammad Ali Heavyweight Boxing. This free game belongs to the Sports and Action category of online retro games.