Cold, Cold Crevasse

Cold, Cold Crevasse is an anomalous area associated with Cool, Cool Mountain. It is generally described as a linear claustrophobic snow-themed ravine level with very limited stars. It can commonly be accessed by sliding down a seemingly random area in Cool, Cool Mountain or finding a hole in the geometry of the level. The level was first theorized about due to it being referenced in a sign near the beginning of CCM that says "Warning! Cold, Cold Crevasse Below!" While this could have been wordplay, it led some to believe this level existed before its eventual discovery, especially since the area did not match the description of a crevasse.

Existence
There's a sign nearby the broken bridge at the beginning of Cool, Cool Mountain. On it, it reads, "Warning! Cold, Cold Crevasse Below!" and below this area is a large slope that leads downwards. It's not much of a crevasse, which led some to speculate that this isn't the Cold, Cold Crevasse the sign is referring to. Considering that the name "Cold, Cold Crevasse" follows the common naming conventions for Super Mario 64 stages, it could instead be referring to a removed area erroneously still mentioned due to a developer forgetting to change the text on the sign. A crevasse is a deep open crack; this doesn't fit the description well since there is no other side that would make it qualify as a giant crack.

Description
Cold, Cold Crevasse is typically described as a cramped ravine area filled with snow, with several platforms above a massive void. It typically shares it's music with Cool, Cool Mountain or Hazy Maze Cave. The level is typically made up of linear platforming from one end of the crevasse to another, or to the top. The level usually contains Spindrifts, Mr. Blizzards, and Goombas. Notably, penguins can also be found in this level in multiple reports, either NPCs as usual, though some reports claim they are aggressive. The reason behind this is unknown.

There are usually some unique secondary segments of the level if it appears as a full course instead of a smaller level like most reports indicate. This commonly includes a massive lake oftentimes described as indefinite, a village of penguins, or a large castle made out of snow similar to the citadel found in Chroma Tundra. Some have even reported a "surface area" if one were to reach the top of the ravine, indicating it to be an entirely separate region instead of part of Cool, Cool Mountain.

Missions
The 2 most common missions of Cold, Cold Crevasse are obtained by collecting 8 red coins scattered throughout the level, or by reaching a certain end point of the level. More stars only usually appear if the level manifests as a full course. These include reaching the end of the "Snowfort", reaching the bottom of the lake, typically using the Metal Cap or even the Frog Cap, or fighting a boss somewhere in the level, most commonly the Snowfort. This is usually a large penguin, a white or blue Wiggler nicknamed a Snowy Wiggler by those who encounter them, or a larger Mr. Blizzard named the Chief Snowman. The third is the most common of the bosses to encounter.

Music
It's possible that the music present within this area varies from player to player. Even then, it is still possible to find some videos around the internet that claim to have the music for Cold, Cold Crevasse, although it is suggested that you don't take these sources for granted. The sound file provided here is quite an obscure recording:

Unfortunately, not much is known about this audio recording or whoever captured it on tape.

Reports
''Everything in this section should be taken with a grain of salt. These are all unverified claims.''

Report No. 1
Youtuber Jefftastic, among many of their other videos, has documented Cold, Cold Crevasse. It begins with them selecting a 4-star save file, spawning in the Castle Grounds, and looking up to the stained glass to see a glitching, translucent model of Princess Peach. What this means is unknown. They enter the castle, and a black screen appears, before the screen returns to normal. Notably, the star count has increased to 11, and the lives count went from 4 to 6. What caused this is unknown. They unlock the door to Cool, Cool Mountain and enter, before attempting to wrangle Tuxie. They drop the penguin to read the Cold, Cold Crevasse sign, leading to another black screen before the text appears. We then see the player attempting to jump over the massive wedge in the map while carrying Tuxie, suddenly hitting a warp and entering Cold, Cold Crevasse.

They begin in a small tunnel that leads out into the main area. They find a sign that reads: "Warning! You have entered the Cold, Cold Crevasse! Please watch your footing... --Chief Snowman" The player then begins to navigate the level, defeating a Spindrift, collecting coins, obtaining a 1-Up, and climbing upwards. On this second layer, they defeat Mr. Blizzards as they progress, gradually navigating the chasm. They briefly look up, revealing the walls end at a certain point, as well as the total lack of a ceiling, showing Cool, Cool Mountain's skybox. They find 2 platforms leading to the end, jumping on Spindrifts to progress, before reaching a raised bit of land with the Power Star, as well as another sign from the Chief Snowman. "Chief Snowman is out at the moment to get some delicious pastries! I left a star as compensation; I hope it helps any travelers that come by. --Chief Snowman" The player collects the Power Star, which is labelled as a castle's secret star. They then run out to the Castle Grounds, showing that the Princess Peach model is still in the air.

Report No. 2
''"I found this place when I was playing on my copy of Mario 64. I found it when I tried to do the Speedrun Strat when doing the Li'l Penguin Lost star (The one where you slide off the "Cold, Cold Crevasse" and then jump back onto the platform.). However, I ended up falling. Then, it took me to this place. The happy music of Cool, Cool Mountain was gone, replaced with the wind blowing. Mario landed onto the snow. I looked around to see the place was just one giant snowy platform engulfed in white fog. No enemies, no coins, no stars - nothing. I heard the "Di-ding, di-ding" (The one when you are on low health underwater) in the distance. I started running in the direction of that sound. Mario's health started falling and he started slowing down. With Mario getting weaker and weaker, my screen started getting covered in snow. When Mario finally reached the sound, he was crawling on the ground, with only one hit-point left. The source of the sound turned out to be a baby penguin. It was completely gray, and it had no eyes - just black holes. Then, another baby penguin appeared. And another one, and another one, and another one. Soon, there were a total of 10 penguins surrounding Mario. A speech box came up, which said "All the players dropped us into this ravine. Join us, Mario. Be free, along with us. In heaven." The camera then zoomed onto Mario's face, who was barely alive. A smile appeared on his face, before he passed out, and subsequently died. All the baby penguins vanished into dust. Then the N64 turned itself off."''

Report No. 3
(Taken from a show named "Video Game Sightings". The episode is lost media, but the transcript still exists in note form. This note was found in a old building's cabinet.)

So, you know Super Mario 64? That game? I loved that game as a middle school student and was very excited when it came out. But there was something strange that I found in this game like a month ago. I was in Cool, Cool Mountain, and I was going to do the very popular trick where you could get to the bottom without taking the bridge. I messed it up and fell, but something very weird happened. I was in this very weird snowy-like maze thing that seemed like it would never end. I found a spindrift and attempted to jump on it, but then it just disappeared. This was the same for every enemy I came by. I attempted to defeat them, but they just disappeared before I could even land. Then I found a house structure, that while was unenterable, still was very interesting. Then I walked to the back of the house to find a penguin NPC. I talked to it and it said (scribbled in black ink, most likely to keep it a secret from Nintendo). It was very interesti(rip), and horrifying. A (red ink) hidden in the (rip)? That was very interesting.

So next I tried to find the (blotch of blue paint, entire section is unreadable)

I found it and the game then told me to go to the (rip). I had no idea where that was, so I just kept wandering around. Then I found it. The place that the game had told to go to. I went inside it and (giant blotch of red ink, entire section is unreadable)

Then a screen showed up. It was very mysterious. I was not worthy? After all of this time of walking around and trying to pass through (rip), I get this screen? Is there something I was missing?

I turned off the console after that and basically have not played since then.

Report No. 4
A video was recently uploaded by Youtuber First Name Last Name documenting Cold, Cold Crevasse. The player, playing as Luigi, enters Cool, Cool Mountain and reads the sign that references Cold, Cold Crevasse before walking onto the bridge next to the sign and being warped to Cold, Cold Crevasse. The level is made up of a large rectangular box, potentially being created by Dynamic Level Arrangement, with a hallway at the beginning functioning as an entrance. There, a blue Wiggler referred to as a Snowy Wiggler in the description, appears as the only object in the level, with unique dialogue:

"Hey! This is MY house! What are you doing here? Do you want to steal my flower? My star? No! No, no, NO!"

"HEY! THAT HURT! YOU'LL REGRET THAT!"

"Ow, you're such a bully!"

"GAH! OW! UNCLE! UNCLE! Fine, take this star! And leave me alone!"

Upon defeating the Snowy Wiggler, the star flies out of bounds, and the player looks at the now miniature Snowy Wiggler, before going to the pause menu and leaving the level as static appears on the screen before the video ends.

Trivia

 * Some reports claim that the giant cavern which houses the slide sub-area in Cool, Cool Mountain once contained Cold, Cold Crevasse. After Cold, Cold Crevasse was scrapped, the hollow mountain environment may have been repurposed for the area the slide takes place in.