Pokémon Go Halloween Mischief 2021: Sizes, Music, Costumes, & Everything you need to know!

The Lavender Town music is coming back!

Halloween is coming to Pokémon go this year in a big way, so much so that they have separated the Halloween event into two parts, each bringing entirely new or different content to the game. There will be Pokémon debuts, new mechanics, raid bosses, and plenty of other exciting content for us to explore during the two-week event.

Mechanics

Some major changes are coming to the game during the event that doesn't fit in with the lists below. Here are the biggest changes we will see.

  • New Sizes: Pokémon of different sizes will now physically look different when you look at their avatars. Smaller sizes will have smaller avatars, and larger sizes will have larger avatars!
  • New Music: The infamous and creepy music that played in Lavender Town in the original games will be played in the background throughout the event.
  • More Story: More special research will be added to the story unfolding about Hoopla, who will make its debut this Halloween Season.

Related: Pokemon Sword and Shield Pokedex List – Full Galar Pokedex!

Cosmetics

This event will bring in some new themed costumes for a few Pokémon and new avatar items and stickers in the shop. So far, the following items have been revealed to be available during the event timeframe.

  • Avatar Items
    • Pikachu Pumpkin Head
    • Pumpkaboo Top
    • Pumpkaboo Pants
    • Hoopa Headband
    • Halloween Face Sticker
  • Stickers
    • Halloween Driflblim
    • Halloween Pikachu
    • Halloween Piplup

Raids

Some different Pokémon will show up in Raids will be available during each part of the event. Here is the list of Pokémon we will see.

  • Part 1: Creepy Companions
    • Tier 1: Galarian Slowpoke, Murkrow, Scraggy, Yamask, Espurr
    • Tier 3: Alolan Raichu, Sableye, Banette, Halloween Mischief Drifblim
    • Tier 5: Altered Forme Giratina
    • Mega: Mega Gengar
  • Part 2: Ghoulish Pals
    • Tier 1: Galarian Yamask, Murkrow, Phantump, Yamask, Average Size Pumpkaboo
    • Tier 3: Alolan Marowak, Lampent, Banette, Halloween Mischief Drifblim
    • Tier 5: Darkrai
    • Mega: Mega Absol

Pokémon Encounters and Debuts

Many Pokémon will appear more often in the wild that match the Halloween theme, and some have never been in the game before. Here is the entire list coming to the game during the event. Bolded Pokémon are making their debut.

  • Halloween Mischief Pikachu
  • Halloween Mischief Piplup
  • Galarian Slowking
  • Phantump
  • Trevenant
  • Pumpkaboo
  • Gourgeist
  • Zubat
  • Drowzee
  • Gastly
  • Spinarak
  • Misdreavus
  • Shuppet
  • Stunky
  • Woobat
  • Gothita
  • Yamask
  • Purrloin
  • Haunter
  • Litwick

Eggs

Different Pokémon will hatch from 7km eggs during the event. Here is the entire list.

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

Field Research Encounters

Halloween-themed Pokémon will show upon completion of Field Research Tasks during the event. Here is the list of encounters you might have.

  • Halloween Mischief Pikachu
  • Halloween Mischief Piplup
  • Halloween Mischief Drifblim
  • Yamask
  • Galarian Yamask
  • Gastly
  • Spinarak
  • Shuppet
  • Duskull
  • Zubat
  • Drowzee
  • Woobat
  • Gothita

That's everything to expect in the upcoming event!

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