Fans have discovered an exploit in Pokémon Legends: Arceus that makes it easier to capture Shiny Pokémon encountered in the wild. This is due to how the game determines when a Shiny Pokémon will appear, which differs greatly from how the older entries in the series handled it, giving players a great deal of control over Shiny spawns.
Shiny Pokémon are Pokémon with a different color scheme and a flashy new animation when they are summoned to the field. Developer Game Freak went out of its way to make Shiny hunting as hard as possible in the older Pokémon games, with players only having a minuscule chance of encountering a Shiny Pokémon in the field. There are a few tricks to make this easier, such as acquiring a Pokémon Shiny Charm, or by breeding a Shiny Pokémon using the Masuda Method, but fans can still expect endless hours of grinding during a Shiny Pokémon hunt.
Related: Pokémon Legends: Arceus Has Already Broken Retail Store Sales Record
Pokémon Legends: Arceus has methods for spawning Shiny Pokémon through mass outbreaks, but fans have discovered additional ways to keep Shiny Pokémon on the field. Redditor Azoth_Magnum shared their discovery (via TheGamer), which reveals that turning off the autosave and manually saving when a Shiny Pokémon appears will ensure that it respawns if players reload their save file. This means fans can have as many attempts as they need to catch it, which is especially useful in a game like Pokémon Legends: Arceus, where the wild Pokémon have a higher tendency to flee from battle.
See the post on Reddit here.
It seems that the spawn rates in Pokémon Legends: Arceus are similar to the world seeds in Minecraft and that the number of Pokémon and type are determined when entering the zone
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