Super Mario 64 is subject to an urban legend, that being the personalization of every copy. The game will change and adapt to suit it's player, and there have been many who claim to see new characters, small changes, new maps and even strange creatures, like a Wario head who will chase you until the very end.
Friedfrick for Apparition Mario's Madness Devs for Mario's Madness I animated all of these so credit me if you use them