In Super Mario Sunshine, the differences between surfing Bloopers are presented as a tradeoff between speed and handling, appearing to not have any clear advantage over each other. However, this is not true, and the green Blooper is actually OBJECTIVELY SUPERIOR to the other two.

The code of Super Mario World contains an unused translucent level mode, which causes the environment to appear ethereal and was as such possibly intended for ghost house levels. Below is footage of some ghost houses with the mode enabled.

Since the star collection and post-star collection cutscenes in Super Mario Galaxy 2 have an average length of 30 seconds and a full playthrough collects 240 stars, the player spends at least 2 hours per playthrough simply watching Mario collect stars.

Extremely rare banana putter given out to Nintendo employees who participated in the marketing of Donkey Kong 64.

In Super Mario Sunshine, Mario is immune to bees while talking. He will be pushed around by them, but not be harmed while he's engaged in conversation. Note that he is not simply immune to damage - e.g. he will still die to heat stroke while talking. It is specifically bees.

In Donkey Kong Country 2, it is possible to trap Diddy Kong in a state of eternal horror. Hitting K. Rool with a team-up throw in a specific manner will cause Diddy's eyes to pop out in shock; however, he will never recover and stay in this state until the game is reset.

In Super Mario 64, parts of Lethal Lava Land are actually made out of leather, which simply appears to be stone due to the low resolution of the textures.

In the Nintendo Switch version of Super Mario Galaxy (but not Super Mario Galaxy 2), Mario and Luigi's right hands have been moved away and stored separately from their models for an unknown reason. It is theorized that this is somehow an attempt at optimization.

The "communications terminated" error screen in Super Mario 64 DS and New Super Mario Bros. is uncharacteristically startling, interrupting gameplay with a red error screen and loud siren.

Super Mario World has an extremely eclectic art style whereby many enemies are drawn in completely different ways. Development files reveal Mario went through many stylistic changes; it is possible that all the enemies were made to fit Mario, but at different points in time.

In Super Mario RPG, refusing to give the Baby Yoshi cookies after talking to him in the middle of a jump will cause Yoshi to completely freeze. His only motion will be sliding silently along the ground.

It is possible to break the Frog Flap microgame in WarioWare simply by being too skillful. Red platforms speed up the frog, blue ones slow it down. By skipping red platforms and landing on the blue ones, the frog will eventually start flying and never come back down.

In Super Mario Galaxy 2, the Wigglers on the Tall Trunk Galaxy slide are special slide-only Wigglers that literally cannot exist outside of it. If one of them is allowed to make it all the way up the slide, he will lose his head and become a singularity.

In Super Mario Sunshine, there is a small plant in Gelato Beach that raises a staircase when sprayed with water. In the files, an unused, presumably corrupt animation for it exists that shows it slowly stretching in an unsettling manner.

In Mario & Luigi: Bowser's Inside Story, the characters are deathly allergic to wearing inappropriate clothing. If Mario and Luigi are made to wear Bowser's clothes or vice versa, all their stats drop to 0. It is unknown if this is merely a code quirk or an intentional failsafe.

In Super Mario Bros. Wonder, the Floating High Jump badge is called "Luigi" internally. This means the playable Luigi has to have a different name - "PlayerLuigi". Whenever Luigi wears the badge, it is actually PlayerLuigi wearing Luigi.

The programmers of the Donkey Kong arcade left a message in the code to hackers mockingly congratulating them and offering to teach them as a joke. A group of bootleggers actually took this seriously and contacted the company asking for help pirating their own game.

The Bowser in the Sky skybox from Super Mario 64 is well-known for its ominous appearance. However, it is actually made by combining real sky photos from texture libraries and then color-shifting them. Restoring the image from the original files shows it to be rather serene.

In Super Mario Galaxy 2, the cutscenes on Starship Mario are controlled by a giant floating L in a special cutscene dimension.

In Luigi's Mansion 2 HD, there is a cutscene where a Toad's face textures are shifted upward briefly. While he is facing away from the camera during this, looking at him from the front reveals he has two mouths and no eyes.

In Super Mario Odyssey, there is a single Luigi who is somehow too much for the Nintendo Switch to handle. Bringing the camera close to this 8-bit Luigi in Metro Kingdom at night will cause the game to stutter and slow down to 5 FPS. This is the only Luigi who has this effect.

In Mario & Luigi: Brothership, one of the lines a character says about Dorrie is a warning to not be its lunch. This is a reference to an infamous sign from Super Mario 64 warning of the same fate, which spawned urban legends that it would be possible to be eaten by Dorrie.

Mario & Luigi: Partners in Time contains an unused enemy called the Scoot Bloop, a Blooper whimsically wearing shoes. It has two attacks: a regular one and a "do nothing forever" attack where it just freezes in place and refuses to end its turn, trapping the player indefinitely.

Illustration from a 2023 patent granted to Snap Inc., the developers of Snapchat, showcasing an augmented reality effect that renders a dancing Mario over a user's video.

In Mario Kart: Double Dash, heavy racers are objectively better when racing against the player. While it may seem random which CPUs are the best in any given race, on the highest difficulties, the top team is actually guaranteed to contain one of the five heavy characters.

In a 1996 interview about Super Mario 64, Shigeru Miyamoto said he really wanted to make Mario throw MIPS the Rabbit by his ears, and would have done it if the team had just one more month.

Experimental post: Mode 7? What About Modes 1-6? Some games on the SNES, such as Super Mario Kart, boasted "Mode 7" technology. However, this raises the question of what happened to the previous modes. This post explains them and gives examples of their usage in Mario games.

Piranha Plants in Paper Mario: The Thousand-Year Door are the sleepiest creatures in the game, with some of their subtypes being up to 110% sleepy. This may be a reference to the famously sleepy Piranha Plants from Super Mario 64.

Super Mario Galaxy contains a variety of placeholder text. The placeholder for the screen when Mario returns to the Comet Observatory is particularly humorous, appearing to explain the Spin ability while repeatedly getting interrupted. Below is a mock-up of it displayed in-game.

Using a specific setup in Super Mario Maker 2, it is possible to create a "Negative Space Koopa Troopa". It will not only be invisible, but make objects behind it invisible as well, appearing as a walking hole in reality.

In Super Mario 3D Land, the welcome screen that is displayed when starting the game for the first time appears to be much less enthusiastic about the game in the European version compared to the US version.

"Fresh", sealed copies of Super Mario RPG actually have a unique title screen. This screen is lost permanently on that cartridge after playing and saving just once, and can not be restored without tinkering with the cartridge or waiting decades for the save battery to run out.

A glitch may occur in Super Mario Galaxy when played on a Nintendo Switch 2 whereby Mario will get stuck in freefall in the tunnel in Gateway Galaxy. The usual failsafe that would kill Mario for falling too long does not activate here, so Mario will tumble forever and never die.

Early concept art for the Super Mario Bros. Super Show suggesting the cartoon was planned to have animated public service announcements. While Captain Lou Albano did a similar PSA wearing a Mario hat ("if you do drugs, you go to Hell before you die"), that one was live-action.

While this may be obvious to some players, Cataquacks resemble Wiggler segments that have come to life. This is likely intentional due to them originating in Gelato Beach in Super Mario Sunshine, where the antagonist is a Wiggler.

The Donkey Kong Bananalysis stream continues! Please join me as I point out details and provide obscure information about Donkey Kong Bananza on the Supper Mario Broth Twitch channel! www.twitch.tv/suppermariob...

In 1999, the official Nintendo Australia site tested the visitor's ability to display Shockwave/Flash content by displaying a running Mario, crudely edited from a screenshot of Super Mario 64.

By changing only a single byte in the code of Mario Paint, the music composer will not stop at the end of the song and instead continue to play the entire contents of the console's memory as music.

Game & Watch Gallery 3 contains a debug mode that displays the game's graphics. However, due to an incorrectly loaded palette and using a black background, the sprites for Yoshi in the Egg game appear inadvertently unsettling when viewed in that mode.

Two well-known voice clips from Super Mario Sunshine are Mario saying "Aren't I done yet?!" and "There's more?!" in an exasperated way, long presumed unused. However, there is actually a way to hear them in-game, as they have a chance to play when he enters a level at low health.

In Yoshi's Island, a cave background sparkles, but only when Yoshi moves. This is achieved in an inventive way by making many 1-pixel "pinholes" in the background through which a field of stars is visible. The parallax motion shows the stars intermittently, creating sparkles.

In Super Smash Bros., the skeletons visible when characters are hurt by electric attacks are not tied to specific animations, and instead are a form that can be toggled on and off at any time, including in cutscenes. Below are excerpts of the game's intro, with skeletons.

In Super Mario 3D World, eight colorful star particles appear every time a Ground Pound is performed. An extremely rare event of all eight of them matching in color may occur with a less than 1 in 2,000,000 chance. No known recordings of this event exist.

Looking through binoculars around Moo Moo Meadows in Mario Kart World has a small chance of activating a "cute jumpscare" Easter egg whereby a group of Para-Biddybuds will suddenly look into the binoculars from the other side.

In the Super Mario Galaxy games, the staff credits text is always loaded into RAM despite not being needed until the ending. While horribly inefficient, this is inadvertently heartwarming as the games appear to honor their creators by keeping them in memory at all times.

Artwork used internally at DIC Entertainment during the production of the Super Mario World cartoon, replacing Marge Simpson with Mario. According to a former DIC employee, this was made due to an inside joke at the studio, though the exact nature of the joke has been lost.

Due to the unique way Super Mario Bros. stores its maps, its level designers were at the mercy of the decorative hills and bushes when placing bottomless pits. While the pits can be placed freely, the decorations are non-negotiable and dictate the level design.

Development files for Super Mario Kart show that the earliest sprite for Koopa Troopa did not have his eyes visible from the back, making him appear like an unknown bald man (left). The eyes were made prominent in the finished version to avoid this (right).

It's a new series of Supper Mario Broth livestreams! Please join me as I bananalyze details and provide obscure information about Donkey Kong Bananza on the Supper Mario Broth Twitch channel! www.twitch.tv/suppermariob...

In Donkey Kong Bananza, Void Kong's banana remote opens from the end opposite the stem. This is actually consistent with how apes and monkeys peel bananas in real life. While humans tend to peel bananas from the stem, monkeys peel from the opposite end.