Over the past week, Pokemon Go has been teasing a Halloween-related event with found-footage style videos, which were suspiciously reminiscent of the trailer for Hisuian Zorua in Pokemon Legends: Arceus. As it turns out, Zorua is actually coming to Pokemon Go for the first time this Halloween–here’s how you can catch it.

The teasers posted by Pokemon Go included videos and screenshots with large numbers of Pokemon such as Noibat, Magikarp, and Pikachu spawning on the map, including references to Shuppet’s Spotlight Hour. Now, Niantic has revealed that Zorua is the Pokemon behind these mysterious spawns, which are related to the buddy Pokemon the Trainer has accompanying them.