Pokémon Go fans gathered in Times Square to celebrate the game's 10-year anniversary. The event, which may have included one of the largest in-person Pokémon battles in history, drew a large crowd, with estimates suggesting almost 2,000 attendees played the game together. The celebration appears to have been a significant event, with some unique elements, such as a "Times Square Mewtwo," and may be the start of further anniversary activities.