Pokémon GO Halloween 2021 Event: Start Date, Special Research, Raid Bosses, and More

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It’s that time of year again, when the spookiest of Pokémon come out of hiding to scare unsuspecting trainers and wreak havoc in-game. Pokémon GO’s Halloween events are an annual occurrence, and while October 31 is still a little while away, it’s always worth knowing what’s in store.

Whether you’re excited for event-exclusive Pokémon GO field research tasks, or just want to prepare some Pokémon GO Rocket Grunt counters for the evil team’s ghoulish gangs, this Halloween will have something for everyone. 

Based on previous experience, we’re expecting plenty of Ghost and Dark types. Spooky. Here's everything you need to know...

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READ MORE - Pokémon GO Promo Codes (October 2021)

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Pokemon GO Halloween Start Time Countdown

Pokémon GO's Halloween Mischief Part 1: Creepy Companions starts on Friday, October 15, 2021, at 10:00 am and will end on Friday, October 22, 2021, at 10:00 am local time.

Here's a handy countdown timer so you know how long before the event gets started!

Pokemon GO Halloween Mischief Part 1 'Creepy Companions' Start Time

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12 October 2021 -

Niantic has at long last announced what they have in store for Halloween and there's a lot to unpack. First off, the event in question has been split into two parts; Creepy Companions and Ghoulish Pals. Here's a run-through of what you can expect to see. Since there's a lot of info we've also distilled it into bullet points.

  • A new Special Research story: 'What Lies beneath the Mask?' - will be available, focussing on Yamask
  • Halloween Cup In GO Battle League: Check out the Season 9 GO Battle League blog for details.
  • Event Bonusese: 2× Transfer Candy, 2× Catch Candy, 2× Hatch Candy, Guaranteed Candy XL when walking with your buddy
  • Costumed Pokémon: Halloween Mischief Pikachu, Halloween Mischief Piplup & Halloween Mischief Drifblim.
  • New Avatar Items, Stickers, and Bundles: including, Pikachu Pumpkin Head, Pumpkaboo Top, Pumpkaboo Pants, Hoopa Headband, Halloween Face Sticker
  • Spooky Bundles Available In The Shop
  • Lavender Town Music
Pokemon GO  Galarian Slowking
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On 15 October, 'Part 1: Creepy Companions' will start and introduce:

  • The next part of the Season of Mischief Special Research story, 'Misunderstood Mischief'
  • Galarian Slowpoke will be able to evolve into Galarian Slowking
  • The following Pokemon will spawn more frequently: Halloween Mischief Pikachu, Zubat, Drowzee, Gastly, Spinarak, Misdreavus, Shuppet, Halloween Mischief Piplup, Stunky, Woobat, Gothita, Yamask
  • Also, for the first time in Pokémon GO, you’ll be able to encounter a Shiny Spinarak, if you’re lucky!
  • New Pokémon available to encounter in raids. Follow the link for our link on the current raid schedule
  • New Pokémon in 7km Eggs.
  • New Pokémon available from Field Research Task Encounters.
Pokemon GO Halloween Avatar Items
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On 22 October, 'Part 2: Ghoulish Pals' will start and introduce:

  • Pumpkaboo and Phantump will make their Pokémon GO debuts, alongside their Evolutions, Gourgeist and Trevenant.
  • You’ll be able to encounter Pumpkaboo of varying sizes, just like you can in the Kalos region. Gourgeist evolved from Pumpkaboo will also vary in size! During this time, intrepid Trainers can complete a Collection Challenge that’ll encourage them to seek these Ghost-type Pokémon!
  • The next part of the Season of Mischief Special Research story, Misunderstood Mischief, will unlock.
  • The following Pokemon will spawn more frequently: Halloween Mischief Pikachu, Gastly, Murkrow, Misdreavus, Shuppet, Halloween Mischief Piplup, Purrloin, Phantump, Small Size Pumpkaboo, Average Size Pumpkaboo
  • If you’re lucky, you might encounter the following: Haunter, Yamask, Litwick, Large Size Pumpkaboo, Super Size Pumpkaboo
  • New Pokémon available to encounter in raids. Follow the link for our link on the current raid schedule
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Finally, we'll leave you with this glorious Lavender Town remix which will be playing nightly throughout the Pokémon GO Halloween Mischief event:

11 October 2021 -

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The Pokémon GO Halloween Event returns this week, starting on Friday, October 15, 2021.

Hopefully this week we'll see some more details on the potential costumed Pokémon set to return as well as which Pokémon will be appearing more in the wild.

Who knows, we might get some more details about the new Halloween-themed Special Research story. More details to come soon no doubt!

7 October 2021 -

We've got our first teaser from Pokémon GO for Galarian Slowking who looks to be coming with the Halloween event. Take a look below:

When is the Pokémon GO Halloween event start date?

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The Pokémon GO Halloween event 2021 will start on Friday, October 15, 2021.

The event will last for two weeks, ending on Sunday, October 31, 2021.

What is the Pokémon GO Halloween Special Research?

As with most Pokémon GO events, the Halloween event will likely include some Special Research. We don’t know exactly what this will entail, but we’ll keep this guide up to date as soon as we know more. 

Gengar is sillhouetted on a hill, surrounded by other Ghost-type Pokémon.
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What are the Pokémon GO Halloween Raid Bosses?

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Expect to see a lot of Ghost- and Dark- type Pokémon in raids during this event. We might see the return of costumed Gengar, or Darkrai as a legendary Pokémon GO raid boss.

As for counters, Ghost-types are weak to Dark-type Pokémon, so the likes of Tyranitar will be perfect. Dark-type Pokémon are weak to Bug-, Fighting-, and Fairy-types, so we’d recommend brushing off a few Machamp, Terrakion, and Togekiss to see you through.

What are the Pokémon GO Halloween spawns?

Much like the raid bosses for this event, we’re expecting Ghost- and Dark-type Pokémon to appear more frequently in the wild. They will also be attracted to Incense and probably Lures, although the special Lures will still attract their respective types of Pokémon.

That’s everything we know about Pokémon GO’s Halloween 2021 event. Prepare your fighters and be ready to get spooked.