Pokémon GO history · #0812
Rillaboom in Pokémon GO.
When Shiny Rillaboom arrived in Pokémon GO, and how its family's Shiny forms followed.
Shiny release
The first Shiny in the Grookey family appeared on January 18, 2026.
- Grookey
- Thwackey and Rillaboom by encounter
- Gigantamax Rillaboom
Common questions.
Can Rillaboom be Shiny in Pokémon GO?
Yes. The first Shiny in the Grookey family appeared in Pokémon GO on January 18, 2026.