The Super Nintendo Entertainment System, or SNES, was Nintendo's console which released super Punch-out. It was a 16-bit console, and unlike the Nes of the past, cartridges stuck out the top of the console instead of a door. The SNES Punch-out game took advantage of the new controls, allowing the KO Punches to be used with A, instead of the Star Punches that used Start on the NES. You also used Y to do left punches instead of B, and B to do right punches instead of A. At the time, it was a good move, and now they remade it on Switch as a software which receives monthly games.