It turns out that The Legend of Zelda: Breath of the Wildcharacter modeling really follows Nintendo’s Mii format. This means that an enterprising modder has figured out a way to make NPCs look like specific Miis.
Twitter user @HEYimHeroic, who has cataloged more than 100 official Miis on their Mii Library page, discovered this weekend that Breath of the Wild NPCs “use an advanced version of the Mii format” called UMii. “UMiis has almost all the same parameters as the Wii U / 3DS Miis, with a few minor differences here and there,” Alice wrote on Reddit on Monday.
For the record, there has long been speculation (since the game̵
Hi, Mii expert here. It turns out that the NPCs in TLoZ: BotW use an advanced version of the Mii format. This means that you can inject Miis into the game with modding. 🙂
Thinking of opening missions for Mii injectors, both screenshot / images of Mii and mod downloads! pic.twitter.com/8NfVr4zyqA
– I’m alice (@HEYimHeroic) January 4, 2021
Obviously the art style of a Mii and the characters in Breath of the Wild is quite different; but the two use essentially the same attributes and parameters. It is a convenient way for the game to generate unique NPCs on a large scale. The mother found out what their Mii would look like Breath of the Wild, although the game converted Miis hairstyle (which was not one of Breath of the Wild hair options) to one that is supported. (Hats and other headgear are also just turned into different hairstyles.)
@HEYimHeroic credits Breath of the Wild modding Discord with a lot of help, especially in testing and providing screenshots of the conversions from Mii to the game.
Imports Miis to Breath of the Wild is not necessarily labor intensive, but it requires a modified Nintendo Switch, or Wii U, and then extract and edit a UMii file from the game to take the same attributes as the Mii file. It also replaces a specific NPC, so you have to find where they are and visit them in the world to see for yourself.