1401
The visual design of the scene in Paper Mario where Mario falls from the sky may be a reference to the intro of Yoshi's Island, where Baby Mario falls from the sky. Among other similarities, both scenes feature unique colorful vegetation not seen anywhere else in those games.
1402
This officially licensed 1996 Super Mario 64 telephone is notable for including very subtle Kirby elements despite not having any Kirby branding. The base of the phone includes Kirby among a cast of Mario characters and the back of the box shows three small Maxim Tomatoes.
1403
Photo of a 1995 promotional campaign by Nintendo UK for Donkey Kong Country. Certain bus stops in London were fitted with speakers that played ambient jungle noises, and an actor in a Donkey Kong mascot costume would randomly appear and interact with people waiting for the bus.
1404
In Mario Kart Wii, the poles around the finish line in the N64 Sherbet Land track have a gradient coloring. In an inventive case of asset reuse, the poles do not have their own texture; instead, the letter "I" from the banner is mapped onto them, producing the gradient.
1405
1080° Avalanche for the GameCube contains an unlockable snowboard called "8-bit Soul", depicting a sprite of Mario. Ironically, the sprite is not actually 8-bit; instead, it is from the 16-bit remake of Super Mario Bros. 3 in Super Mario All-Stars.
1406
In Super Mario Odyssey, the shoes of the King's Outfit are shiny and reflect most major areas (left). However, when Mario enters a side area that does not natively contain reflective surfaces, the shoes fail to find a reflection map and become dull as a failsafe instead (right).
1407
An extremely minor detail is present in Level 4-5 of Donkey Kong Country Returns that is nearly impossible to see during gameplay: an unreachable minecart on top of a ledge has a sad expression. The additional eyebrows are only used once in the game, on this particular minecart.
1408
Decoration on a 1981 "Crazy Kong" arcade cabinet. Despite being widely believed to be an unlicensed knock-off of the Donkey Kong arcade, "Crazy Kong" is officially licensed by Nintendo of Japan. More details in the image.
1409
In July 2018, Nintendo of Japan announced a line of licensed travel merchandise using this print pattern, containing original drawings. Some text uses Japanese names, such as "Magnum Killer Airlines" (topmost row, left of middle), that being the Japanese name for Banzai Bill.
1410
Follow-up to the previous Tweet: At the request of a reader, I have attempted to recreate the Small Penguin Mario artwork as accurately as possible using the highest-quality versions of the respective source images, resulting in this 1726x1938 pixel high-resolution version.
1411
Artwork of "Small Penguin Mario" from a recurring segment in the British Official Nintendo Magazine. Since Small Penguin Mario does not actually exist in the games, the artwork was created by splicing together renders from New Super Mario Bros. Wii.
1412
Extremely rare official render of Lanky Kong from Donkey Kong 64, seen in an issue of the Spanish "Magazine 64". According to preliminary research, this render appears to never have been published on the Internet in an isolated form before.
1413
The data for New Super Mario Bros. U contains an unused pepper level icon (left), meant to be used alongside other icons for secret levels (examples on the right). Since all secret level icons reflect the level's contents, it was likely intended for a unique pepper-themed level.
1414
The Toad-like early designs for Princess Toadstool (right) and her otherwise unseen parents (left), previously known to appear only in the "How To Win At Super Mario Bros." guide (top row), have been discovered to also appear in another, even earlier Japanese guide (bottom row).
1415
A compilation of internal names used for the various kingdoms in Super Mario Odyssey's code, as well as the internal names of their inhabitants. Some of the names suggest that the original concepts could have been slightly different, such as "Clash World" for the Lost Kingdom.
1416
April Fools joke feature from Expert Gamer magazine that purports to showcase how to evolve a Dragonite into Yoshi in Pokémon Red and Blue.
1417
Illustration from a 1988 Japanese guide for Super Mario Bros. 3 featuring a more simplistic Boo design than used in the finished game.
1418
In an extra mode of WarioWare Gold, Wario creates crude drawings of various amiibo, among them this picture of Waluigi. This is the only time Waluigi's existence is acknowledged in any game with "Wario" in the title, despite Waluigi often appearing alongside Wario otherwise.
1419
Sketches of Yoshi's head and a Baby Yoshi hatching from an egg, drawn by Shigeru Miyamoto for a Japanese official guide for the puzzle game "Yoshi" for the NES/Famicom.
1420
Mario could fully submerge in the New Donk City rooftop pool in the E3 2017 version of Super Mario Odyssey (left), prompting journalists to show Mario drowning in it (middle). Possibly in response, in the release version, the pool was made too shallow for Mario to drown (right).
1421
A 1994 Wario's Woods manga's final battle (left) is against Luigi possessed by Fauster, an evil jester boss (top right). This predates a similar scenario, where Luigi is possessed by the evil jester Dimentio for the final battle in Super Paper Mario (bottom right) by 13 years.
1422
A 1997 British official Nintendo promotional leaflet included with Nintendo 64 game purchases lists Yoshi's Story as "Yoshi's Island 64" and includes a preliminary logo as well as the tagline "Green psycho power for dino freaks!"
1423
In Super Mario Maker 2, the "Super Mushroom" voice sample does not follow the tune of the music in the Super Mario Bros. style, despite doing it in other styles and other samples following the tune in the same style. Thank you to @FaceofCoffee and @RMaster94 for the information.
1424
The only two appearances of artwork for "Mr. X", an unused character intended to appear in Donkey Kong Country 2, seen in an issue of Nintendo Power and the game's German manual. The text translates to "Mr. X: nobody knows him or has ever seen him anywhere before".
1425
The Mario planet from Toy Time Galaxy in Super Mario Galaxy is not an accurate recreation of the Small Mario sprite from Super Mario Bros., but a slightly larger, distorted version of it. Left: planet in-game, middle: interpretation of planet as sprite, right: original sprite.
Additional obscure Mario content for suppermariobroth.com.
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