The Twitter account Unlisted Cheats searches for and reports on undiscovered codes in classic games. They found a real doozy yesterday, about a secret two-player mode in the SNES game Super Punch-Out!! The news hit Reddit and has gotten up to 4,400 positive votes, so, folk seems really interested.
(Note, for clarity, you have to say the SNES game Super Punch-Out!!, because Nintendo made a different arcade game that they also called Super Punch-Out!! Also, the exclamation points are part of the name. I’m not just really excited.)
To do it, Y+R must be held on controller 2, and Start pressed on controller 1. This loads a screen where any opponent may be selected
Then, on the character info screen, hold B+Y, again on controller 2, and press Start on controller 1 to allow player 2 to control the opposing boxer.
The code even works on the version of the game on Nintendo Switch Online, so if you have an account there you can try it out without setting up an emulator or digging up an old cartridge.
It’s interesting to note the times that the big gaming sites reported on this. As of this writing (yesterday) and according to Google, Ars Technica reported on it 18 hours ago, followed by IGN (16 hours), Kotaku (15 hours), and then Eurogamer. Reddit says the post went up there 19 hours ago, and Unlisted Cheats posted it 20 hours ago. News travels fast in the videoscape.
The phenomenon of the cheat code has gone kind of out of fashion these days. They still exist, but tend to be more for debugging than anything, especially since interesting features can conceivably locked behind paid DLC gates and bring in more lucre to the mothership. I know of a particularly interesting code that news broke about some time back, but let’s give that its own moment in the sun, tomorrow….