April Fools' Day

April Fools' Day was an event in Pokémon GO that took place between March and April in 2018, to celebrate real-world April Fools' Day.

Features
The most recognisable feature of this event was changing regular sprites of Pokémon (static raster graphics of 3D models) into 8-bit sprites known from original Pokémon games. Moreover, there was increased spawn rate of Murkrow during the event, and shiny variant of it released to be caught in the wild.

News banners
Banners for in-game news changed for time of the event, getting Pokémon with 8-bit sprites. 