Bad Export for You: The American Special Edition includes a USB stick, but it only includes ten tracks from the OST and comes with clumsily-implemented DRM, which effectively only allows it to be run on a Windows PC and can corrupt some school or business networks. At least it looks cool.
Cowboy BeBop at His Computer: Several sites, such as Siliconera and Dualshockers reported Lynlee's age had been changed to 15 for the western release. This is factually incorrect, since Elma plainly says she's still 13 years old during her introductory scene in the English version (@7:14-8:01). The confusion actually stems from a question around the character herself, since it's unclear if she was thirteen at the time of her Brain Uploading and is now "eternally 13" as a mim (despite being chronologically fifteen), or if she was eleven at the time and has been "growing" via mim updates.
Defictionalization: FrontierNav (an interactive video game map viewer and data repository) takes its name and inspiration from this game, and has since expanded to include the rest of the Xenoblade series and many other games.
A looser one with Fallout 4, due to being a Eastern and Western Wide-Open Sandbox released around the same time and being sequels to criticallyacclaimed titles, and being mutually exclusive releases (Fallout releasing on the PC, PS4, and Xbox One, while Xenoblade is exclusive to the Wii U).
Fake Brit: Celica has a British accent in the English dub, but is voiced by American voice actress Mela Lee. Averted with the Classic Avatar voice choices, those being the extremely British Adam Howden and Carina Reeves of the original Xenoblade cast.
The game was originally going to have a fixed main character, but was changed halfway through development due to the addition of online play. Concept art of the original protagonist resembles Yelv.
According to the developers the project got so out of hand, especially after the decision to add multiplayer, that the amount of content cut and changed rivals the entirety of the three Xenosaga games, the series of which they come from was infamous for its Troubled Production.
Concept art of planet Mira shows that it was originally going to be bigger, with more continents, an orbital space station, and an enormous tower located at its north pole. Strangely, it also appears to have dark purple "cracks" in its surface. There's also what appears to be a second human city on the opposite side of the planet, "New Tokyo". Many fans hope that if a sequel emerges, some of these might be made into elements of it.
The Qlurians were originally going to have a much bigger part in the story, but were almost entirely absent from the game in the end. The only remnants of them are Celica, a brief mention of the Trion Barrier being their technology, and the Neilnail Skells that can be fought in a Time Attack mission.