Halloween 2021

Halloween in 2021 was the sixth Halloween event in Pokémon GO.

Pokémon Spotlight Hours featuring Gothita and Murkrow were available during this event.

Featured Pokémon
The following Pokémon were released with the start of the event:

These Shiny Pokémon were released with the start of the event: PS Pikachu PS Spinarak PS Ariados PS Piplup PS Drifblim

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

7-km Pokémon Eggs obtained during the event would hatch more of these Pokémon:

The following Raid Bosses were available for a time of this event:

Field Research event tasks
There were several Field Research tasks exclusively for the duration of the event.

Special Research
The ninth part of the Misunderstood Mischief Special Research was released in this event.

What Lies beneath the Mask? also became available.

Timed Research
During this event there was a Timed Research series that was titled Halloween Cup Research in game.

A Timed Research series titled Limited Research was made available as an apology for an issue with Galarian Slowpoke's evolution. It was available from October to October, 2021.

Avatar items
These avatar items were released with the beginning of the event:

Stickers
These stickers were released with the beginning of the event:

Featured Pokémon
The following Pokémon were released with the start of the event:

These Shiny Pokémon were released with the start of the event: PS Absol

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

7-km Pokémon Eggs obtained during the event would hatch more of these Pokémon:

The following Raid Bosses were available for a time of this event:

Field Research event tasks
There were several Field Research tasks exclusively for the duration of the event.

Special Research
The eleventh part of the Misunderstood Mischief Special Research was released in this event.

Collection Challenge
To complete the Collection Challenge, Trainer must catch all of the following Pokémon during the event.

Trivia

 * The official blog mistakenly stated Spinarak was available in 7-km Pokémon Eggs instead of Pumpkaboo during part 2 of the event.