Misty Misty Valley

Misty Misty Valley is a level found in certain personalized copies of Super Mario 64. This level does not have much documentation, and it's unknown if the level even exists, or if it is simply an urban legend.

Supposedly, the level the used the mist from Jolly Roger Bay's first star as a level gimmick. Mario would have to jump on buttons which made a large fan spin, removing the mist from the level for some amount of time. If too much mist built up, Mario would start taking damage. This is the most documented part of the level, and is consistent with most reports of people finding the level. The level also took place on the side of a cliff, with the fan being in the distance and most likely a flat model. Some documentations of the level claim the fan is in the level geometry itself, but these are few and far between.

With the unreliable documentations and inaccuracies with certain known aspects of the Personalization AI, it's unknown if this level has ever even existed in any point in time, as no raw footage of the level has ever been found.