Videos
Mario Part 3 - Easter Egg Hunting
Mario Part 2 - Easter Egg Hunting
Nintendo 64 - Did You Know Gaming? Feat. Brutalmoose
Mario - Did You Know Gaming? Feat. Egoraptor
 
The level select sound that occurs after the player jumps into a painting is actually the first few notes of the Super Mario Bros. overworld theme but with vocals.
Contributed by MeleeWaluigi
During a stream of Super Mario 64, Twitch user DOTA_Teabag accidentally warped upwards in Tick-Tock Clock while trying to land on a platform on the first floor. While similar to a glitch in Bowser in the Fire Sea that allows Mario to warp into the caged portion of the level from the platform directly below, DOTA_Teabag's version did not rely on any hang-able ceilings being above Mario during its performance. This prompted Super Mario 64 analyst and Youtube personality Pannenkoek2012 to offer a $1000 reward to anyone who could submit a recording of themselves replicating the glitch in Mupen64 (a Nintendo 64 emulator) under the same criteria as when DOTA_Teabag discovered the glitch, with the purpose of reverse-engineering it.
At the time of this writing the bounty has not been collected.
Contributed by game4brains
The Wing Cap theme is actually the "Powerful Baby" theme from Super Mario World 2: Yoshi's Island, but sped up and featuring different instruments.
Contributed by Boyobmas
Attachment
There is an unused flower within the graphics for Lethal Lava Land.
Contributed by WoopeTon33
Attachment
In early version of the game Mario's health bar was different. It featured numbers, as well three colors, green, yellow and red. This was later changed in the finished product where Mario's health is a full pie graph, and the colors that are in the final version of the health bar are Blue, Green, Yellow, and Red.
Contributed by CLXcool
A rideable horse was discussed during early development of the game but was never included. This idea eventually made it into The Legend of Zelda: Ocarina of Time as Link's horse, Epona.
Contributed by Mighty Jetters
Attachment
After defeating Bowser, a key will appear with a number of coins flying outwards from it, but none of them actually fall onto the ground. This is likely a remnant of a past idea where coins would appear after Bowser's defeat, as seen in early pre-release footage. The idea was likely scrapped as the coins would serve little to no purpose after defeating Bowser, since Mario's health automatically recovers after collecting the key and returning to the hub world.
Contributed by G-Haven
In addition to the red, blue, and green switches, there was originally going to be a yellow switch too. When used in game, the switch is automatically set to the "on" position for unknown reasons.
Contributed by GamerBen144
There's unused text that may have been spoken by a Boo upon entering Big Boo's Haunt, saying "Eh he he... You're mine, now, hee hee! I'll pass right through this wall. Can you do that? Heh, heh, heh!" It was likely removed because no mission involved chasing a Boo through the Level.
Contributed by CuriousUserX90
If you pick up Tuxie the baby penguin after returning her to her mother, the mother penguin will angrily follow Mario around until Tuxie is put back down.
Contributed by CuriousUserX90
Early in development, there was originally going to be a level-cleared flagpole. However, the developers felt that scouring the land for hidden items was better, so the flagpole was scrapped. It would be included in Super Mario 3D Land, and Super Mario 3D World.
Contributed by GamerBen144
The "Slider" and "Snow Mountain" Theme are both variations of the main theme of Super Mario 64, which is played on the "Bob-omb Battlefield". The songs are all played at different tempos and with different instruments, but are largely the same tune.
Contributed by Boyobmas
In a late pre-release build, stars that have already been collected are in grey shades instead of the dark blue seen in the final version. This was shown during E3 '96 when demonstrating the game before its release.
Contributed by Andy_san
Attachment
The enemy "Whomp" was likely inspired by a Japanese mythological creature known as a "Nurikabe". Nurikabe were said to take the form of a wall either to trick or trap any travelers. It's also said that Nurikabe could expand infinitely in size. The only known way to make it disappear was to knock on its lower-right-hand side.
Contributed by Yoshispacedragon
Attachment
An unused trampoline can be found in the game's files. It has no model in-game, and behaviour for it was never created.
Contributed by GamerBen144
In the world "Bowser in the Sky", two Goombas can be seen on the same platform together. These two Goombas are actually part of a Goomba trio object loaded by the game, however, the third Goomba is placed over the edge of the platform, resulting in it rendering at the bottom of the stage, out of reach.
Contributed by RadSpyro
Attachment
The Japan-only Shindō Pak Taiō edition of the game contains an exclusive Easter Egg on the introductory screen: pressing Z fills the background with images of Mario's face. These images are taken from the frame buffer, and therefore reflect the current state of the 3D model of Mario's head that the player can manipulate.
Contributed by game4brains
Early in development, before Charles Martinet was hired to provide Mario's voice, the developers used stock Looney Tunes voices as placeholders.
Contributed by GamerBen144
Attachment
In the Power Star "Blast to the Stone Pillar" in Jolly Roger Bay, the Power Star is contained within a box in the Western versions, but not in the Japanese version of the game. This was likely changed during localization to make the star's position less obvious.
Contributed by CuriousUserX90
Attachment
There is a metal wing texture in the game for combining the Wing Cap and Metal Cap, similar to how the Vanish Cap and Metal Cap can be combined in Dire Dire Docks. There are no levels in the game where it would be possible to equip both simultaneously, but they do function and use this texture if given to Mario via hacking.
Contributed by CuriousUserX90
There is a glitch that causes Mario to hold his hat in his right hand. This occurs when Mario picks up two hats in rapid succession. If Mario loses his hat in Snowman's Land by being blown away by the giant snowman's breath, and then takes the warp under the tree, his hat will duplicate, and retrieving it will cause this glitch.
Contributed by Antwan
Attachment
Two small Koopa Troopa shells, one green and one red, can be found in the game's data. Both of these shells are the same sizes as Spiny shells, however, they cannot be used.
Contributed by GamerBen144
Attachment
The second Power Star on Cool Cool Mountain, acquired by reuniting the baby penguin with her mother, appeared over the mother penguin's head in the Japanese version. It was moved next to the pool in other releases, likely to make it easier to obtain.
Contributed by CuriousUserX90
Princess Peach doesn't have any voice acting in the original Japanese release during the beginning and final cutscenes. This was added for all other versions.
Contributed by CuriousUserX90
Several of Mario's voiced lines didn't exist in the original Japanese version of the game, and were added for western releases:

• "Hello" and "Press Start to Play" during the demo screen with Mario's head.
• "Okey-dokey!" when choosing a save file.
• "Let's-a go!" when choosing a star.
• "Game over." when Mario runs out of lives.
• His dreams about pasta are missing.
• "I'm-a tired." - when the player is idle.
• "So long-a Bowser!" - when Mario throws Bowser a long distance.
• "D'oh!" - when long-jumping, sliding, or diving into a wall.
• "Boing!" - when bouncing off of a Spindrift's head.
• Mario will say either "Yahoo!", "Wha-ha!", or "Yippee!" during the last jump in a triple jump. In the Japanese game, he says "Yahoo!" every time for the third jump.
• In the opening sequence, Mario says "Yahoo! Ha ha!" when he leaps out of the pipe instead of just "Yahoo!" in the Japanese version.
Contributed by CuriousUserX90
The Idea for Metal Mario may have come from an interview with Shigeru Miyamoto published in 1991, in Nintendo Power's Mario Mania Player's Guide, Miyamoto reportedly said: "Who knows what Mario will look like in the future? Maybe he'll wear metallic clothes!"
Contributed by CuriousUserX90
In an interview with Satoru Iwata and Shigeru Miyamoto, it was revealed that an early, experimental build of the game had split-screen multiplayer, with Mario and Luigi as playable characters.
Contributed by RadSpyro
Attachment
The Big Boo in Big Boo's Haunt course originally held a key instead of a Power Star inside of him. The keys would unlock the various doors in Big Boo's Haunt. There was even a key counter to display how many keys the player had acquired.
Contributed by VGSavvy
Attachment
The enemy Blargg from Super Mario World is found in the game's code, but it's model and programming are unfinished. It has an animation for jumping out of lava, but doesn't do anything else.
Contributed by RetroRex
If you allow Mario to fall asleep (by remaining idle for an extended period of time) for long enough, he'll start sleep-talking about food.
Contributed by Smurfman256
Attachment
Nintendo released a Japan exclusive version of Super Mario 64 which had Rumble Pak support. It also included the English voice acting which the original Japanese version didn't have, and fixed some glitches.
Contributed by weegeechan
Attachment
There is an unused animated Yoshi egg texture in the game's data, suggesting that Yoshi was going to play a bigger role in the game, similar to Super Mario World.
Contributed by xianc78
In the original Japanese version, if the player runs to where a key will land after defeating Bowser in the Dark World or Fire Sea, presses C-Up and looks somewhere, Mario will keep looking in that direction during the key collection cutscene.
Contributed by game4brains
Attachment
In the December 1997 issue of The64Dream, Miyamoto stated that Super Mario 64-2 would have made Luigi a full part of the game, and that if he was really popular, then the box for Super Mario 64-2 would be green.
Contributed by ThisGuyInTheSuit
If you jump up and down in a shallow pool of water, you can occasionally see a fish jump out of the water with you.
Contributed by gamemaster1991
Super Mario 64 was originally planned for release on the SNES, utilizing a more advanced version of the Super FX Chip. However, the project was later moved to the N64. Super Mario 64 actually defined the features for the N64 Controller, the analog stick and C Buttons respectively being incorporated for better movement in a 3D environment and better free-camera control. This seems to show that a lack of buttons, not a need for better processing power, pushed the game to the N64.
Contributed by game4brains
There is a cancelled sequel for Super Mario 64, commonly called "Super Mario 64 2" or "Super Mario 128" (not to be confused with the tech demo of the same name) for the failed N64 DD. Only one demo was ever made, but was never shown to the public. The only information known about the game is that Luigi was going to feature in it, and co-operative play was a speculated feature. Since these two elements feature in Super Mario 64 DS, it's possible that other elements from Super Mario 64 2 were incorporated into Super Mario 64 DS.
Contributed by game4brains
MIPS, the rabbit in the castle basement, is named after the MIPS (Microprocessor without Interlocked Pipeline Stages) microprocessor. The Nintendo 64's CPU runs on a MIPS Microprocessor, so the name was chosen for the rabbit.
Contributed by gamemaster1991
In early development of the game when Nintendo were working on character movement and camera angles, they only had two characters; MIPS the rabbit and Mario. MIPS was planned to be just a testing dummy, but made it into the final game because they didn't want to part with him.
Contributed by Charlie
Attachment
When you catch MIPS the bunny in the castle basement, he references Alice In Wonderland. Just like the White Rabbit, he says he's late. Then he says says he'll give you a star, but he has an important date to get to.
Contributed by Charlie
Attachment
The penguin found during the 3rd star of the "Cool, Cool Mountain" level changes after 120 stars are found. After obtaining all the stars, the penguin is found much fatter than before from not doing races lately. He can be raced again, but there is no additional reward for beating him.
Contributed by gamemaster1991
Attachment
There are murals on the pillars in Bowser in the Sky depicting the original Bowser from Super Mario Bros.
Contributed by ummwat
Attachment
In the Japanese version, the painting for Jolly Roger Bay originally had a blue frame with bubbles. This was changed to a pirate ship with a gold frame. In the remake Super Mario 64 DS, the painting reverted back to the original blue-framed form.
Contributed by ummwat
Boo's creepy laugh is actually just Bowser's laugh sped up.
Contributed by DidYouKnowGaming