Shiny Pokémon can spawn out of bounds because Scarlet and Violet is still broken
Pokémon Scarlet and Violet launched Nov. 18, 2022, in a rather buggy state. Since its release, despite all the patches and player complaints, a bug where Shiny Pokémon can spawn out of bounds still hasn’t been fixed.
In a post on Pokémon Scarlet and Violet’s subreddit from July 9, one player reminded the community of an eight-month-old bug where Shiny Pokémons, rare, but differently-colored iterations of the cute ‘mons, spawn just outside the game’s invisible walls. As a result, fan-favorite Pokémons are inaccessible and even a rarer sight than they are supposed to be.