- Ascended Fanon: Super Mario Maker is considered this to Lunar Magic, an unofficial level editor for Super Mario World released at least 15 years before.
- Follow the Leader: Mega Maker, a level maker which is to Mega Man (Classic) as this is to Super Mario Bros..
- Milestone Celebration:
- Super Mario Maker's release date is two days before the anniversary of the original Super Mario Bros. release in 1985, something which the game itself acknowledges.
- The addition of the Super Mario-kun version of Mario was to celebrate the 25th Anniversary of the Super Mario-kun manga series, complete with a stage created by the manga's creator.
- Out of Order: Not all of the additional costumes unlocked through Event Costumes or added to 100 Mario Challenge in the Super Expert update were released as indicated by the official roster order:
- Sky Pop (#112) was not released until after #113-#118 (Arcade bunny, Master Belch, Mr. Saturn, Captain Toad, Bike, and Birdo).
- Costumes #133-#144 (Balloon Fighter, Nabbit, Tetra, Donbe, Hikari, Ayumi Tachibana, Baby Mario, Iris Archwell, Mallo, Bubbles, and Diskun) were released before Wolf Link (#132), which was released before #129-#130 (Toadette and Yu Ayasaki). Starfy (#131)'s release was held off until after the others were released.
- Costumes #152-#153 (Callie and Marie) were released before #150-#151 (Undodog and Dr. Kawashima).
- Ret-Canon: Thanks to Coursebot's official course "Did Somebody Call a Plumber?", the Mario Bros. finding their way to the Mushroom Kingdom via the Brooklyn sewer system (or at least its Metro Kingdom counterpart) is now canon.
- Throw It In!: The "skinny Mario" came from an incident during programming when the basic Mario sprite was accidentally stretched. The developers were so amused by the result that they decided to make it a feature.
- What Could Have Been:
- YouTube uploads of level playthroughs were considered, but ultimately dropped in favor of the devs wanting players to share the levels to play rather than only sharing videos to watch. This didn't stop capture card users, though.
- The announcement trailer showed a more stylized version of the Super Mario Bros. theme, with gradients, a grid in the background even during gameplay, and the ground tiles being embossed. Also, when Mario is under the effects of the Weird Mushroom (then known as the Luigi Mushroom), he just turns into a vertically stretched version of his small sprites, rather than having a unique sprite set. The background of the New Super Mario Bros. U theme had the Acorn Tree that's absent in the final game. Also absent in the final release is the longer time allowed for levels, as the video shows a timer of more than the normal 500 seconds.
- The game was originally envisioned as a true sequel to Mario Paint where players would use the stylus to draw. It was not long that the developers decided to turn it into a Mario course maker using their experience with Super Mario Bros. level design as inspiration.
- Originally, the graphics for Lakitu's Cloud in SMB style had an indentation from where his hands were and resembled the original sprite. The SMW styled Bloopers resembled the version seen in SMB3 combined with the graphics of Yoshi's Cookie. In the final release, Lakitu's Cloud is larger to stay consistent with the SMW style and differentiate them from cloud platforms, and the Bloopers are given entirely new graphics to fit the style.
- The game originally replicated the original physics of the games the themes represent. It was changed to consistently have New Super Mario Bros. U-style physics regardless of theme in an attempt to avoid muscle memory problems (and to make it easier on people who decide to change the game theme in the middle of making a level).
- The files for the level themes show an early order of how they would be placed, such as Ghost House being placed at the very end.
- Why Fandom Can't Have Nice Things: Due to the presence of glitch levels, Nintendo has since outright deleted them as they violate their policies, despite players praising them. A patch in version 1.45 has since made it almost impossible for new users to perform such glitches. A famous user named Psycrow who had tried to lift the glitch ban has resulted in even more bugfixes.
- Working Title:
- The game was originally just Mario Maker, with the logo in a similar style to Mario Paint. Later, the "Super" prefix was added, and the logo was made more angular, which gave the game its own identity.
- The Tagline also changed in development; originally, it was "Create your own custom Mario courses!", which eventually became "Anyone can make it. Everyone can play it."
Trivia / Super Mario Maker