 Beginning in "Black" and "White", certain Pokémon in each game are 'Shiny-locked', meaning the player cannot obtain a Shiny variant of them in normal gameplay.Pokémon "Sun" and "Moon"'s SOS Battle mechanic created a new way to "hunt" for Shiny Pokémon.If a wild Pokémon calls allies to help and the ally is continually of the same species in a "chain", the chance that it calls a Shiny Pokémon rises up to a base of 13 in 4096 after the 30th is called, as do the chances of Hidden Ability and perfect IVs, though they are capped at four perfect IVs maximum.