List of Super Mario Odyssey pre-release and unused content

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

General

 * The pre-release boxart of the game featured part of a screenshot of Mario in the Sand Kingdom wearing a sombrero and poncho. In the final boxart, this was changed to him in the Lake Kingdom due to controversy surrounding the original image being described as a negative stereotype of the Mexican people.
 * An unused sprite of an 8-bit Metro Kingdom regional coin exists in the game's files but is not used in the final game.

"First Look at Nintendo Switch" trailer

 * The ruins in the Sand Kingdom featured ice formations removed in the final game.
 * Bowser's wedding posters are not featured on the wall.
 * The Jaxi sign's appearance is different than in the final game.
 * The Checkpoint Flag at Tostarena Town's entrance is not present.
 * The Tostarenan in front of the Jaxi sign is hopping in front of it, while in the final game, he simply paces in front of it.

Nintendo Switch Presentation Trailer

 * Cappy and Tiara were not shown with eyes in cutscene and gameplay footage (except for Cappy at the end of the trailer). This was most likely done to avoid revealing the characters too soon.
 * Similarly, when Mario is looking out the window of the Odyssey as its flying, Cappy takes on his appearance as Mario’s cap and his eyes are not present. In the final game, Cappy takes his ghost-like appearance and is off Mario's head.
 * The electronic billboard for Steam Gardens found in New Donk City showed that the location was originally named "Kogwald."
 * The details of Bowser's airship are different and simpler than in the final game.
 * Bowser has his standard hairstyle instead of his more "formal" hairstyle seen in the final game.
 * When Cookatiel is carring the meat, Mario's nose and mustache are not seen on the meat as the capture ability had not been introduced yet.
 * One of the buildings Mario Wall Jumps off of is green. This is gray in the final game.
 * The hat on the door of the Odyssey is smaller than in the final game.

Trailer

 * In the cutscene where Mario throws Cappy for the first time, Cappy's eyes are not on Mario's cap while they are in the final game.
 * Peach's tiara was simply shown as a regular tiara rather than Tiara herself as she had not yet been revealed.
 * Knucklotec did not have a Multi Moon inside his head.
 * In one cutscene, the Binding Band is not seen next to Peach.

Demo

 * Multi Moons were originally named "Grand Moons."
 * The Binding Band was simply named the "Wedding Ring."
 * The Showdown on the Inverted Pyramid mission was originally known as "Inverted Pyramid Showdown."
 * One of the Sand Kingdom's underground areas was called "Ice Cave," which appeared after dropping and landing inside. This does not occur in the final game and thus makes the area nameless.
 * The Metro Kingdom's Power Moons were much more bronze-colored than brown.
 * The Mayor Pauline Commemorative Park had a Mini Rocket instead of Mechawiggler's parts. In the final game, this Mini Rocket is found by entering a building and reaching the end of the area inside, where it is positioned on an isolated platform.
 * Several of the quotes uttered by NPCs are different than in the final game:
 * The RC Car driver in New Donk City originally said, "Is there a better way to spend free time? Nope." before it was changed to, "How are my kids so good at this?"
 * The HUD during the E3 demo did not feature the instructions to press to view the map and  for the menu, or the compass underneath the Health Meter.
 * When there is only one hit point left, the Health Meter flashes differently than in the final game.
 * When the player acquired a Life-Up Heart, the extra health meter was colored green alongside the first one instead of light blue.
 * In New Donk City, there are signs present in certain areas that are not in the final game.
 * The rooftop pool beside the top of city hall was significantly deeper in the E3 demo, with the water level being just over Mario's head; in the final game, the water level approximately reaches Mario's neck. It is likely that this change was due to the original water level leaving Mario susceptible to drowning, as demonstrated in a YouTube video uploaded by gaming news site Polygon during E3.

The Art of Super Mario Odyssey

 * Rosalina was originally going to have a role in the game, where she was going to be a musician who specialized in playing the guitar, possibly encountered by Mario while visiting the Metro Kingdom.
 * Several costumes were planned for Mario to be worn in the game, but were dropped for unknown reasons. Some of these unused costume concepts include Cloud Mario, Toadette, and the Green Sprixie Princess.
 * Bowser was originally going to be assisted by an evil Bonneter serving as a villainous version of Cappy, allowing him to capture other characters and objects like Mario, but was replaced with a robotic top hat equipped with mechanical boxing gloves in the final game. The original concept for the game's final boss battle involved him Capturing Peach and the two transforming into a Bowser-Peach hybrid, very much like the first portion of the final boss battle against Ganondorf at the end of The Legend of Zelda: Twilight Princess involving Link and Midna fighting Ganondorf possessing Princess Zelda and becoming Puppet Zelda. Ironically, this preceded the creation of the infamous fan-made Bowser-Peach hybrid named "Bowsette" following the reveal of the upcoming game New Super Mario Bros. U Deluxe, featuring Toadette becoming Peachette after obtaining a Super Crown.