In the context of Pokémon Go, a special event is taking place to celebrate Professor Willow's birthday on July 21, 2026. This event features the introduction of a new costume Pikachu, known as Professor Willow's Assistant Pikachu, which can be caught by players during the event. The event is part of the broader Ultra Unlock: 10th Anniversary Edition, which runs until July 27, 2026, allowing players ample time to complete the associated Timed Research quest. The quest consists of three steps, each requiring players to catch Pokémon, complete field research tasks, and perform various in-game actions to earn rewards, including encounters with the special Pikachu. Players are encouraged to catch this Pikachu, as it has the potential to be shiny, adding an extra layer of excitement to the event. The quest and the Pikachu can also be found in raids and through photobombing snapshots, providing multiple opportunities for players to engage with this new feature. The event not only celebrates the character's birthday but also enhances the gameplay experience by introducing new challenges and rewards for players to pursue. As the Pokémon Go community continues to grow, events like these play a crucial role in keeping players engaged and motivated to explore the game further.