Yes, we have found the Super Mario 64 BETA!!!!!! It's a ROM, so you will need a N64 emulator. To get the ROM, go to
http://www.sm128c.com/april2001/sm642.html and go to the bottom. Oh, and evidence shows that Luigi was planned for the game.
Edit: (really really really really mad) Never mind, this was a terrible prank pulled by SM128. Please close.