We all know it's not a mystery. But just imagine for a second... imagine if it was actually real. That would mean all the absolutes we know about unreleased video games would be questioned. For instance, that would mean maybe there was a SMB4 made for the NES.
Quote: "Rumor has it that there is a new Mario coming on the scene for you die-hard 8-bit Nintendo fans. We've heard whisperings that Super Mario 4 for the original NES system will be out sometime in 1992. No confirmation yet from Nintendo yet, but we'll keep our ears open." - Game Informer Jan/Feb 1992 (pg 17).