Ultra-rare Punch-Out ROM dumped online featuring missing fighters, major differences from final NES release

An ultra-rare, fully playable but silent early prototype of Mike Tyson’s Punch-Out!! has been dumped online, revealing major departures from the final 1987 NES release, including arcade-era character

names, unused fighters, and only four accessible opponents. The Video Game History Foundation analyzed the unusual cartridge, reportedly found at a former Nintendo of America employee’s garage sale an ...