Niantic has fully detailed the highly-anticipated Pokémon GO Halloween 2018 event, which has officially begun worldwide. Ghost-type and Dark-type Pokémon originally discovered in the Sinnoh region, such as Drifloon, Drifblim, Stunky and Skuntank, have made their Pokémon GO debuts. Shiny Drifloon and Shiny Drifblim are also available for the first time. Trainers can now earn double Candy for every Pokémon caught until November 1 at 1 p.m. PDT. During this event, Professor Willow will need your help on some limited-time Special Research. He’ll task you with completing Special Research tasks featuring Spiritomb before it goes away.
You can also participate in Field Research featuring Ghost-type and Dark-type Pokémon throughout the event. Plus, the Renegade Pokémon, Giratina, has made its first appearance in Raid Battles. This Ghost- and Dragon-type Legendary Pokémon originally discovered in the Sinnoh region has emerged from the Distortion World for an extended time, so challenge it before it leaves on November 20 at 1 p.m. PST. New avatar items featuring Ghost-type Pokémon are now available in the Style Shop, including a Drifloon Cap and a Gengar Backpack.