Pokémon GO Fest 2026 will highlight Mega Mewtwo X the most anticipated Pokémon. The creature appears as the chief raid boss and as a reward in the new ‘Genetic Mastery’ quest. Players can freely choose the X form or the Y form, sparking debate over which is more powerful. Eurogamer outlined the Y form’s counters and best moves in its latest guide. The event runs without tickets, allowing the fest to all players seamlessly. A Times Square Mewtwo display earlier this week drew pushback; Niantic has issued a definitive formal response.