Earlier today, Pokémon GO players had a chance to actually battle against the Legendary Pokémon Mewtwo at the Pokémon GO Stadium event in Yokohama, Japan. Thousands of Trainers in attendance were able to successfully catch Mewtwo and add it to their Pokédexes. In the coming weeks, all players around the world will have the opportunity to battle and catch Mewtwo with the new Exclusive Raid Battle feature.
Source: Official Pokémon GO blog
Pokémon Blog 
6 thoughts on “The Legendary Mewtwo officially appears at the Pokémon GO Stadium event in Yokohama”