Halloween 2016

Halloween in 2016 was the first event in Pokémon GO.

Features
Trainers received double candy for catching, hatching and transfer of Pokémon. The required Buddy distance was a quarter of its regular amount, which means that Pokémon received candy four times faster.

Featured Pokémon
Following Kanto-region, Ghost and "spooky"-themed Pokémon had increased spawn rate in the wild: