Halloween Event 2020
Halloween is frighteningly close! Get ready for some spooky shenanigans this year! Galarian Yamask makes its Pokémon GO debut in new Halloween-themed Special Research, and completing certain Field Research tasks may lead to an encounter with Spiritomb—you might even encounter a Shiny one! Dress up in ghastly new avatar items, prepare face off against spine-chillingly cool Pokémon in raids, and take part in Halloween-themed mini events like Catch Mastery: Ghost Day and the Halloween Cup! Regardless of where your dark heart leads you, there’s plenty to enjoy this Halloween!
This year’s Halloween event will contain a number of ways to celebrate.
- Alolan Marowak Raid Day — On Saturday, October 31, 2020, from 11:00 a.m. to 5:00 p.m. local time, Alolan Marowak will be appearing more often in raids.
- Catch Mastery: Ghost Day — On Sunday, October 25, 2020, from 8:00 a.m. to 10:00 p.m. local time, Ghost-type Pokémon will be appearing more often in the wild and there will be event-exclusive Timed Research available to complete. More details here.
- GO Battle League: Halloween Cup — From Monday, October 26, 2020, at 1:00 p.m. PDT (GMT −7) to Tuesday, November 3, 2020, at 1:00 p.m. PST (GMT −8), the Halloween Cup will be live in the GO Battle League. In this format, only Poison-, Bug-, Ghost-, Dark-, and Fairy-type Pokémon with 1500 CP or less will be allowed to participate. You can also earn encounters with costumed Bulbasaur, Charmander, and Squirtle!!
Bonuses 
Features 
- Galarian Yamask will appear in Pokémon GO for the first time! Complete the new Halloween 2020 Special Research, A Spooky Message Unmasked, to help Professor Willow uncover the mysteries surrounding this Pokémon.
- Spiritomb can be encountered by completing certain Field Research tasks and by completing the new Halloween 2020 Special Research story, A Spooky Message Unmasked. If you’re lucky, you may encounter a Shiny one!
- Trainers who completed the Mega Buddy Challenge Timed Research will be able to participate in exclusive Timed Research that will reward Gengar Mega Energy.
- New avatar items will be available in the Style Shop! Get dressed for Halloween with a Pikachu Mask, Gengar Onesie, Sableye Goggles, Sableye Mask, or Banette Mask! You can also try out the new Spooky Pose!
- Keep those eyes peeled for the Creepy Crate, Boo Bundle, and Pumpkin Pack boxes in the shop!
- Take a snapshot for some spooky surprises!
Spawns 
Ghost-type and Dark-type Pokémon will be appearing more often in the wild.
In the Wild
Pikachu
Alolan Grimer
Gastly
Cubone
Murkrow
Misdreavus
Sableye
Sableye
Shuppet
Duskull
Chimecho
Drifloon
Stunky
Yamask
Litwick
Golett
Photobomb Encounters
- Misdreavus
- Yamask
Eggs 
Ghost-type Pokémon and will be hatching more frequently from Eggs. (Other Pokémon can also hatch)
5 km Eggs
Bulbasaur
Charmander
Squirtle- Sableye
- Litwick
Raids 
Ghost-type Pokémon will be featured in raids.
Appearing in Raid Battles
Gengar
Darkrai
Shiny 
These Pokémon will be released in their shiny variant with the start of the event.
Sableye
Spiritomb
Graphic 
