Niantic has released details about thePokemon GOHalloween 2020 Event, which will start later this month and features new challenges, research, costumes, and a new Pokemon coming to the AR mobile game. For the first time,Galarian Yamaskwill make its debut inPokemon GO,and can be caught through the Halloween-themed special research.

Yamask is afifth generation Pokemonwho first appeared inPokemon BlackandWhite. Yamask is originally a Ghost-type Pokemon, but the Galarian variant changes the Yamask to a Ghost and Ground-type with purple eyes, carrying an ancient clay tablet instead of its usual golden mask. InPokemon Sword and Shield, Galarian Yamask evolves into Runerigus through strange evolution requirements.

galarian yamask in desert location

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ThePokemon GOHalloween Event kicks off October 23 at 6:00 p.m. PDT, and lasts through November 3 at 6:00 p.m. PST. During the Halloween event,ghost-type Pokemonwill appear in the wild and in eggs more frequently, and will be featured in raids. Pokemon like Gengar and Sableye will get into the Halloween spirit by dressing up in costumes. Players can catch costumed Gengar in raids, and find costumed Sableyes in the wild or hatching from eggs.

There will also be a number of timed events during throughout the Halloween celebration. Players who completed theMega Buddy Researchwill be able to participate in another Timed Research to earn Mega Gengar Energy. Those who did not complete the Mega Buddy Research will still be able to participate in a raid day, a catch mastery day, and a GO Battle League Halloween Cup.

TheCatch Mastery: Ghost Daywill start on October 25, run from 8:00 a.m. to 10:00 p.m. local time, and feature more Drifloon in the wild. The raid day will launch on October 31 from 11:00 a.m. to 5:00 p.m. local time and feature Alolan Marowak. The Halloween Cup will run from October 26, at 1:00 p.m. PDT to November 3, at 1:00 p.m. PST. The Cup has special requirements of entry, only allowing Poison-, Bug-, Ghost-, Dark-, and Fairy-type Pokemon with 1500 CP or less. Players who participate in the cup can have special encounters with costumed Bulbasaur, Charmander, and Squirtle.

Throughout the event, players can enjoy double transfer and catch candy and may find some surprises when taking snapshots inPokemon GO. The shop will also feature various Pokemon masks, a Gengar onesie, a Spooky Pose, and various Halloween-themed bundles. Players will have many opportunities to catch ghost Pokemon, dress up in costumes, and participate in spooky Halloween research when the event starts later this month.

Pokemon GOis available now in select regions on Android and iOS devices.