This is a strange glitch in Super Mario 64. It makes Mario look retarded. To do it (do outside of castle for best results), tilt the cartridge to the right SLOWLY until the music sounds weird. Let go, and half of Mario's body will disappear.so know you can run around looking like a retard. If you enter a door, the game will freeze, unless you tilt the cartridge back to the way it was.
NOTE: Do this glitch at your own risk. If you tilt the cartridge too much, there's a CHANCE it might corrupt data. Although ths has been tested multiple times without any side effects, there is a CHANCE .