Sinnoh Celebration Event

Sinnoh Celebration Event was the second Sinnoh Celebration event in Pokémon GO focusing on the Sinnoh Region. It was a part of Season of Celebration.

Pokémon Spotlight Hour featuring Drifloon was available during this event.

Featured Pokémon
These Shiny Pokémon were released at the start of the event: PS Buizel PS Floatzel

These Pokémon had increased spawn rates in the wild and from Incense or Lure Modules:

These Pokémon would hatch from 5-km Pokémon Eggs obtained during the event:

These Raid Bosses were available during the event:

Field Research event tasks
These Field Research tasks were available during the event:

Collection Challenge
To complete the Collection Challenge, Trainer must obtain these Pokémon during the event:

Controversy
Many players had expressed the difficulties of finding Shadow Pokémon required to complete the Collection Challenge, especially Snover. Team GO Rocket Grunts appeared randomly and Ice-type Grunts were relatively rare. Even if one encountered an Ice-type Grunt, the chance of catching Cloyster was higher than Snover.