Halloween 2020

Halloween in 2020 was the fifth Halloween event in Pokémon GO.

Pokémon Spotlight Hour featuring Duskull was available during this event.

Featured Pokémon
These Pokémon were released at the start of the event:

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

These Shiny Pokémon were released at the start of the event: PS Gengar PS Gengar PS Sableye PS Spiritomb

These Pokémon could photobomb three times per day during the event:

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:

Special Research
A Spooky Message Unmasked Special Research was available during the event:

Timed Research
Mega Gengar Timed Research was available during the event. Only Trainers who completed Timed Research during Mega Buddy Challenge would access this:

Avatar items
These avatar items/poses were released at the start of the event:

Stickers
These stickers were released at the start of the event:

Catch Mastery: Ghost
Catch Mastery: Ghost Timed Research was available on October  from 8:00 a.m. to 10:00 p.m. local time.

Alolan Marowak Raid Day
This event included a Raid Day on October from 11:00 a.m. to 5:00 p.m. local time, featuring Alolan Marowak with exclusive move Shadow Bone. Five Raid Passes were available during this event when spinning Gyms.

Exclusive move
In order to obtain Shadow Bone, Trainers had to catch Marowak from raid during the event. Trainers cannot use TMs to obtain the attack.

These offers were available from the shop during the event:

Day of the Dead
On November from 10:00 a.m. to  11:59 p.m. local time, the game will be celebrating the Day of the Dead for the first time with a special event for Trainers in Latin America.

Trivia

 * This event was first mentioned in the blog about Mega September.