List of Super Mario 64 pre-release and unused content

This is a list of pre-release and unused content for the game Super Mario 64.

Early ideas
Thirty-two courses were initially planned for the game, but only 15 of them made it into the final product. In some sketch-ups of the game's early development in Super Mario History, Mario is seen jumping on a piano with the phrase ピアノの上をあるく (Walk atop a piano). He is also seen climbing a ladder, swinging around a pole, and pushing a door and a block of ice.

The crouching trip kick (+), present in the final game, was intended to be for attacking short/small enemies, but the developers never added any enemies that were specifically targeted by that move.

During an interview between Satoru Iwata and Shigeru Miyamoto regarding New Super Mario Bros. Wii, Iwata stated that there used to be a multiplayer function that was scrapped from Super Mario 64, likely due to hardware limitations. It was also stated that one could see Mario and Luigi meet in the corridor. This, apparently, inspired the multiplayer function of New Super Mario Bros. Wii.

Iwata: Ever since Mario Bros., you've had your heart set on making a multiplayer Mario game. You've tried each time, but it's never quite come together… Even with Mario 64, it started with Mario and Luigi running around together, didn't it? Miyamoto: That's right. The screen was split and they went into the castle separately. When they meet in the corridor, I was incredibly happy! (laughs) Then there was also the mode where the camera is fixed and we see Mario running away, steadily getting smaller and smaller. Iwata: Yes, that's right. Miyamoto: That was a remnant of an experiment we did where Mario and Luigi would run away from each other but you could still see them both. But we were unable to pull it off...

In an interview between Iwata and Koichi Hayashida regarding Super Mario 3D Land, it was mentioned during a discussion about the flagpole that it was once considered to be incorporated into Super Mario 64.

Iwata: The impression the goal pole makes has a big influence over the impression that the game makes. I suppose he thought this was an area that deserved effort. Hayashida: Later, I asked (Yoshiaki) Koizumi-san, and he said that they tried a goal pole once for Super Mario 64. Iwata: Oh, is that so. Hayashida: But at the time, when they thought about what was the most fun about playing in 3D, it was going to all sorts of places and looking for something, so they decided on players getting a Star.

According to Yoshiaki Koizumi, Luigi was dropped from the game because technical limitations prevented from having both him and more elaborate levels. Koizumi: This may not be a direct answer, but personally, when we made Super Mario Galaxy, I had regrets about some things. I was able to do those things in Super Mario 3D World. Iwata: Regrets? Koizumi: One goes all the way back to Super Mario 64. When we made the first prototype, Mario and Luigi were on a flat field. Iwata: Both of them. Koizumi: Yes. We ran it that way, but when we made the landforms, because of hardware limitations we had a choice between cutting Luigi or making less elaborate landforms. Then, in tears, we had to ask Luigi to leave. The team eventually decided to put Luigi in a Mario Bros. type minigame instead, but the fact that the N64 would be sold with only one controller factored into his total removal by February 1996. Reportedly, Shigeru Miyamoto also cited space limitations. After the game's release, rumors started to circulate about how to unlock Luigi; however, these were all proven false.

Early builds
Mario originally used the "cowboy" and "painful" yelling voice clips from the Warner Bros. Sound Effects Library as placeholder voice clips before Charles Martinet was brought in to give him his current Italian accent. Bowser sounded more tiger-like. Big Boo held a key instead of a Power Star inside him. The purpose of the keys were to unlock a variety of the various doors in Big Boo's Haunt; there was even a "key counter". The upgraded Triple Jump Mario receives after talking to Yoshi in the final game is the same animation used for when Mario enters any level in earlier builds. Jolly Roger Bay used to have music that is similar to the one used in the final game. Also, the sunken ship was much different in the E3 trailer, as it was more modern, had a bridge and a funnel, and was white. The water was very white also. Mario's Triple Jump resembled Luigi's backward somersault in Super Mario 64 DS. The Thwomp's grunt used to be a deep thunderous "thud". Bowser in the Dark World was only the arena where the player fought Bowser. Blargg was planned to be in the game with its Super Mario World design and was loaded but not placed in Lethal Lava Land, Bowser in the Fire Sea, Wing Mario over the Rainbow. It has only one animation (in which it jumps out of lava) and its textures are unfinished, meaning it was likely scrapped early in development. Originally, if Mario were to not get on the wooden part of the slide in Tall, Tall Mountain, he would not be led to a dead end, but instead further down a slope that was not present in the final game. Whomps had a more simplistic design, having a design similar to Thwomps, but with thick eyebrows. Whomp's Fortress was originally going to be called The World of Rocky Mountain. There was also a minimap, though the concept of displaying a map in-game would be passed down to its remake. Coins resembled how they appeared in past games rather than having a carving of a Star on them. When Bowser was defeated, he would leave behind multiple coins and a Power Star. The former of the two is somewhat utilized as a visual effect when defeating Bowser in either Bowser in the Dark World or Bowser in the Fire Sea. Power Stars were two-dimensional like the coins in the game and resembled the white and red stars on the title screen, and the Scuttle Bug enemies were fully 3D and mahogany colored, and had bushy, angry eyebrows and beady pupils.

Level behavior
All paintings in the game are divided into three segments, thus theoretically allowing every level except for Big Boo's Haunt and Rainbow Ride (accessed from a Boo and a hole, respectively), as well as the Metal Cap stage and the slide inside Tall Tall Mountain, to have three possible entry points and/or actions. However, in the final game, only Wet-Dry World actually uses this, to set the starting water level as part of its "water level" gimmick. Wet-Dry World's painting is also unusual in that it is divided horizontally. Every other painting is divided into three segments vertically.

It is unknown if the new paintings introduced in Super Mario 64 DS, such as the one for Sunshine Isles, have this functionality.

Enemy behavior
An unused animation of Klepto holding a "used" Power Star exists if In the Talons of the Big Bird is replayed after the Star is collected. In the final version, however, he always holds a "new" Star regardless of whether it's been collected or not. This unused animation also extends to Super Mario 64 DS and the new Star introduced in that game.

Items and objects
Water mines (with graphics identical to spiked bombs) were going to be in a water level. Yoshi Egg graphics are stored in the game's code, along with a yellow ! Switch. The presence of a Yoshi Egg seemingly implies that Yoshi was originally going to play a more prominent role in the game; however, the egg is internally named bird_egg, with bird_ being the prefix for code and files related to Hoot the owl. Additionally, an object also named bird_egg was found next to these files, revealing that the egg was actually supposed to be Hoot's egg instead of Yoshi's.

There are some unused platforms in the game, such as a flat, checkered platform, resembling the two elevator platforms in Whomp's Fortress. This platform, however, does not do anything other than let Mario stand on it. Another unused platform is like the previous one, except it rotates after every couple of seconds. A cactus was found in the data for Shifting Sand Land, and frames of a flower can also be found in the Lethal Lava Land textures. It seems like both would have been used as background objects. Two early life counters were used: The first one includes a clock-like look, with a clock hand pointing at Mario's health. The second one is similar to the final counter, but it decreased clockwise instead of counter-clockwise.

There is an unused HUD icon of the key which only exists in the Japanese version. It was replaced by a Ü in the European version and removed completely in the U.S. version.

Enemies
There was originally going to be a Blargg, which is still in the game's data, that was to appear in the Lethal Lava Land, Bowser in the Fire Sea, and, although seemingly unneeded, Wing Mario Over the Rainbow. In the game, there are small and large Bullies, using two models; a Chill Bully appeared in Course 10: Snowman's Land. It also had a small and a large model, but only the large model was used. A grasshopper enemy can also be found in the data, which is named "Hopper" and has an animation where it jumps in place.

An unused enemy named "Motos" was discovered in 2020 from assembled source code. Its method of attack was to pick up Mario and throw him and only weakness was to be thrown into lava themselves. The textures for Lethal Lava Land and Bowser in the Fire Sea have "motos" in the names, indicating they were meant to be staple enemies there. Bullies also have the early name "Otos" in the source code and use sounds meant for Motos, suggesting a connection, although they also have similarities to Chuckya and the Big Bob-omb. Heave-Ho appears to have based its code on Motos. References to other objects such as Bloober and "Ice Motos" are also present in source code assets.

Textures
One texture in the game is found in Cool, Cool Mountain. It is much like the ice texture that is used, but it has cracks in it. The texture probably used to be covering the water hole where the Mother Penguin is. A variation was later used in the remake, as the texture for the breakable ice pond.

In early footage, Bowser had blue eyes instead of red eyes.

A metallic Wing Cap texture exists, which would presumably be used if Mario could get both a Metal Cap and Wing Cap at the same time, but this is impossible in the final game, as no level has both.

VL-Tone (the creator of Toad's Tool 64, a Super Mario 64 level editor) found textures of what looks like a red, black and white trampoline, with a yellow "?" painted on the side. It would most likely have had the same effects as its predecessors.

On July 25, 2020, source code was leaked with unused textures and the model of Luigi. It is mostly functional, but lacks a capless variant and has less detailed shading than Mario's model, which suggests that the model was based off of an earlier Mario model used in the Shoshinkai 1995 build.

Text
There is unused text that may have been spoken by a Boo: "Eh he he... You're mine, now, hee hee! I'll pass right through this wall. Can you do that? Heh, heh, heh!". This dialogue was also unused in Super Mario 64 DS, with alternate translations.

Animations
Some unused animations for Mario can be found in the game's code. This includes Mario quickly putting his hat on, bending his knees while riding a Green Shell, performing a flip while in freefall, putting one hand on his head and the other on his hip, a duplicate running animation, a static sitting pose that would've been used at the end of a Ground Pound, and an alternate version of the Side Somersault where Mario flips forward instead of sideways.

Additional animations were planned, such as one where Mario would throw MIPS by the ears, but ultimately unimplemented due to time constraints. Although unused, animation of MIPS falling can still be found in the code.

Miscellaneous

 * A debug function stored in the game is the "level select". In the menu, some of the courses have different names and some symbols can only be seen in the Japanese game (e.g. Whomp's Fortress is simply called "Mountain").

Trivia

 * A pre-release screenshot is used on the Italian rear cover of Super Mario 64. It is evidenced by the HUD, presented in its early form.
 * A pre-release screenshot is used on the board of the 2006 version of Nintendo Monopoly. This is evidenced by the colored number displays.