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Pokemon Go Halloween 2021 Part 1: Galarian Slowking, Special Research tasks and more

The first part of Pokemon Go's Halloween 2021 event is running until Oct. 22.

Kevin Knezevic Former staff writer
Kevin has been covering video games and tech since 2010, with a particular focus on Nintendo and Pokemon. Squirtle is the best starter and nothing will convince him otherwise.
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Kevin Knezevic
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Galarian Slowking has arrived in Pokemon Go as part of this year's Halloween event.

 Niantic

Pokemon Go 's two-part Halloween 2021 event is now underway. The first part runs until Oct. 22 and introduces some spooky new Pokemon and activities to the game, including Galarian Slowking and a new Special Research story focused on Yamask. On top of that, the next leg of the Misunderstood Mischief Special Research story is now live. Here's everything you need to know about part 1 of Pokemon Go's Halloween 2021 event.

How to get Galarian Slowking

As part of this year's Halloween event, Galarian Slowking is now available in Pokemon Go. To get one, you need to catch 30 psychic Pokemon while Galarian Slowpoke is set as your buddy and then feed it 50 Slowpoke Candy. 

If you don't yet have a Galarian Slowpoke, you'll be able to catch one in one-star raids throughout the Halloween event, and you can earn some extra Slowpoke Candy from the latest Misunderstood Mischief Special Research. You also don't need to worry about missing out on the new evolution; you'll still be able to get Galarian Slowking even after the Halloween 2021 event ends.

What Lies Beneath the Mask Research tasks

The first leg of Pokemon Go's Halloween 2021 event also introduces a new Special Research story called What Lies Beneath the Mask? This task line revolves around the ghost Pokemon Yamask, and it'll give you a chance to catch its Galarian form and earn other rewards. You can see the full list of Research tasks below.

Stage 1/4

  • Catch 40 ghost-type Pokemon - 400 Stardust
  • Transfer 9 Pokemon - Duskull encounter
  • Make 49 Nice throws - 9 Ultra Balls
  • Reward for completing all three tasks: Yamask encounter, 4,000 XP and 9 Nanab Berries

Stage 2/4

  • Catch 40 ghost-type Pokemon - Halloween Mischief Pikachu encounter
  • Make 9 curveball throws - 490 Stardust
  • Use 49 berries to help catch Pokemon - Banette encounter
  • Reward for completing all three tasks: Galarian Yamask encounter, 4,000 XP and 9 Razz Berries

Stage 3/4

  • Catch 40 ghost-type Pokemon - 400 Stardust
  • Catch 9 different species of ghost-type Pokemon - Alolan Marowak encounter
  • Make 49 Great throws - 49 Poke Balls
  • Reward for completing all three tasks: Galarian Yamask encounter, 4,000 XP and 9 Pinap Berries

Stage 4/4

  • Claim reward - 49 XP
  • Claim reward - 49 XP
  • Claim reward - 49 XP
  • Reward for completing all three tasks: 4 Yamask Candy, 9 Yamask Candy and 4,900 Stardust

Misunderstood Mischief tasks

In addition to the Yamask research, the Halloween event has brought the next stage of the season-long Misunderstood Mischief Special Research story. This portion is themed around Slowpoke, making this a good chance to catch a Galarian version and earn some more Slowpoke Candy. You can see the full list of tasks below.

Stage 9

  • Make 3 Nice curveball throws - 20 Slowpoke Candy
  • Transfer 30 Pokemon - Galarian Slowpoke encounter
  • Evolve 1 Slowpoke - 1,990 XP
  • Reward for completing all three tasks: Shedinja encounter, 5 Max Potions and 40 Slowbro Mega Energy

Featured Pokemon spawns

In addition to special costumed versions of Pikachu and Piplup, various ghost, poison and psychic Pokemon are appearing more frequently in the game during the first leg of the Halloween 2021 event. You'll be able to encounter the following Pokemon in the wild, raid battles and 7 km eggs:

Wild spawns

  • Halloween Mischief Pikachu
  • Halloween Mischief Piplup
  • Zubat
  • Drowzee
  • Gastly
  • Spinarak
  • Misdreavus
  • Shuppet
  • Stunky
  • Woobat
  • Gothita
  • Yamask

One-star raids

  • Galarian Slowpoke
  • Murkrow
  • Scraggy
  • Yamask
  • Espurr

Three-star raids

  • Alolan Raichu
  • Sableye
  • Banette
  • Halloween Mischief Drifblim

Five-star raids

7 km eggs

  • Spinarak
  • Misdreavus
  • Shuppet
  • Chingling
  • Litwick
  • Golett
  • Galarian Yamask

Halloween 2021 Part 2

The second part of Pokemon Go's Halloween 2021 event runs from Oct. 22 to Oct. 31. This portion will introduce several new ghost Pokemon from the Kalos region to the game, including Phantump and Pumpkaboo. You can learn more in our Pokemon Go Halloween 2021 event guide.