Halloween 2017

Halloween in 2017 is the second Halloween event in Pokémon GO.

Featured Pokémon
These Pokémon were released at the start of the event:

These Shiny Pokémon were released at the start of the event: PS Sableye PS Shuppet PS Banette PS Duskull PS Dusclops

These Pokémon had increased spawn rates in the wild and from Incense or Lure Modules:

These Pokémon would hatch from 2-km Pokémon Eggs obtained during the event:

Avatar items
These avatar items were released at the start of the event:

Shop special offer
These offers were available from the shop during the event:

Promotional pictures
Following promotional pictures were published by creators of the game across their social media channels.

Trivia

 * The Shiny Pokémon were released in parts:
 * On October, 2017 - Shiny Sableye began appearing on the first day of the Halloween event.
 * On October, 2017 - Shiny Duskull and Dusclops began appearing on the seventh day of the event.
 * On October, 2017 - Shiny Shuppet and Banette began appearing on the twelfth day of the event.
 * During this event, there were shiny forms of Gastly family members added to game data, although they weren't released to be caught in gameplay.
 * Shiny variants of family members of both Gastly and Misdreavus families were highly anticipated by players to appear during Halloween event in 2017 and later 2018, however neither of these Pokémon's shiny form were released then.
 * However, shiny variants of Gastly and its evolved forms were released on Gengar Day, and shiny forms of Misdreavus and Mismagius got released on December, 2018 with new Field Research for that month.