There’s Been a Secret Two-Player Mode in Super Punch-Out!! All This Time

Nintendo’s notoriously single-player boxing game SuperPunch-Out!! was released to nearly universal praise 28 years ago. One issue for some reviewers, though, was the game’s lack of a two player mode. Through numerous re-releases on consoles, there has never been a way to play the game with a friend—except there actually was the whole time. This week, UnlistedCheats on Twitter revealed a hidden multiplayer mode in the game, accessible with cheat codes, that allows it to be played with two people for the first time.
While start menu cheats for the game have been found before, they affect sound and name input rather than gameplay. The first newly discovered cheat, which can be accessed by pressing Y+R (on the second player controller) and then A or Start (on player one’s controller), gets you to a secret menu which allows you to fight a free match as any of the opponents in the game. Subsequently holding B+Y and pressing A will allow the CPU to be controlled from the second joypad, and allows two players to play against each other.