And in the last few days it has been confirmed that the event, which started on Friday October 20, will introduce a number of new Pokemon to the Niantic universe.
Among the new creatures are Sableye, Shuppet, Bannette, Duskull and Dusclops.
The Halloween event comes to an end on November 2 and as well as temporary Pokemon being available for a limited period of time there will also be certain creatures who suddenly become a lot more common - such as the ghost Pokemon Gastly.
The Pokémon Go Halloween event will end on, November 2nd at the following times:
UK: 9pm (BST)
Europe: 10pm (CEST)
East Coast US: 4pm (EDT)
West Coast US: 1pm (PDT)


Pokemon Go Latest UK Update
Pokemon Go Halloween