User:FreeWillyNilly

I did a bit of digging and managed to score myself an unused copy of the build, dated December 25th, 1995. For some reason, this build introduces random changes on every save I make. I will record the phenomenon I experience while playing the game here. I will elaborate more on them when I have the time. The phenomenon are sorted by how much they affect the gameplay, with some major phenomenon having real life consequences.

Bird in a cage in Whomp's Fortress
Phenomenon only occurs if Chip Off Whomp's Block has not been completed. About 5% of the time, when the mission is started, a hanging cage containing a bird of indeterminate type will replace Whomp King. Hitting the cage will release the bird, but also cause Mario to slowly die once the bird despawns. Instead of being jettisoned out of the painting, Mario will respawn in the field area at the base of the fortress, with the fortress itself appearing to extend into the sky forever. Birds will be encircling the fortress at the cloud level. Whomps will ignore Mario. Ascending this modified fortress will cause a sense of vertigo and disorientation that increases the farther the player ascends. To date, no real top of the modified fortress has been found.

Indigo coin in Bob-omb Battlefield
Phenomenon only occurs if Footrace with Koopa the Quick and Mario Wings to the Sky have been completed. Somewhere on the map, a secret hole in the floor disguised among the grass will appear. The location of this hole is inconsistent and resets every time Bomb-omb Battlefield is entered. Dropping into this hole will lead to a short, linear path with a single indigo-colored coin at the end. Please note that this coin is not to be confused with the blue coins found elsewhere in Super Mario 64. Collecting the coin results in Mario being thrown out of the painting without having lost a life and, in the player, temporary tetrachromacy that lasts anywhere between two hours to six weeks.

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Seems to be some kind of memetic hazard. Corrupts all information documented on itself. Due to the information being lost, I will say this: The phenomenon is found only in Jolly Roger Bay.

Wario Head in Tower of the Wing Cap
Only mildly related to the rumored Wario Head Apparition, a fully modeled head of Wario will occasionally appear at the summit of the tower. It does nothing, spinning in place with one revolution every minute.

Algal growth in Behind the Waterfall
On occasion, the water will turn a dull green tint. Nothing else happens beyond this.