An incredibly old and rare NES cartridge has made its way online, and it's missing one of the most infamous video game bosses of all time.

It can be argued that many of Punch-Out’s characters are big Nintendo names in their own right. Buuuuttt, eeehhh…they don’t have the pulling power of, say, one of Nintendo’s other characters.

Little Mac, Glass Joe, King Hippo. If you’ve played the original NES Punch-Out!!, you know these characters. They’re old. But what about that character up there? He’s new. The game’s box art shows ...

A generous gamer who won the $45,000 auction for the Punch-Out!! prototype has shared its contents online for everyone to enjoy.