On Tuesday, July 21, from 10 AM to 8 PM (local time), Pokémon GO celebrates Professor Willow's anniversary with the appearance of a costumed Pikachu, the Professor's assistant. This Pokémon will be available during the event, as well as in 1-star raids.
Players will also be able to receive rewards such as a Lucky Egg and a Star Piece by completing field research tasks. A new shiny variant of the Professor Willow's assistant Pikachu will also be accessible during this time. Details about the limited-time research and the available shiny Pokémon will be shared soon.