Shiny Tapu Koko to be distributed in Japan - Bulbanews

Shiny Tapu Events (The Only Way), Wiki

Can You Catch Shiny Tapu Koko in Pokemon GO?

Tapu Koko (Pokémon) - Bulbapedia, the community-driven Pokémon encyclopedia

Pokemon Card Japanese - Shiny Tapu Koko 047/SM-P Promo (Has scratch)

I finally caught all the Shiny Tapus! Shiny Tapu Koko after only 35 caught in Sword and Shield!

Tapu Koko shiny comparison : r/TheSilphRoad

List of Japanese region serial code event Pokémon distributions (Sun, Moon, Ultra Sun, and Ultra Moon) - Bulbapedia, the community-driven Pokémon encyclopedia

List of Japanese region serial code event Pokémon distributions (Sun, Moon, Ultra Sun, and Ultra Moon) - Bulbapedia, the community-driven Pokémon encyclopedia

Tapu Koko (Japanese) 053/190 - Holo (s4a)

Can Tapu Koko be shiny in Pokemon GO? (January 2023)

H] Gen 4, 5 and 6 events. [W] High-end events up to Gen 7. : r/pokemontrades

Shiny Tapu Events (The Only Way), Wiki