Mega Mewtwo X and Mega Mewtwo Y, the Mega Evolutions of the Genetic Pokémon Mewtwo, will make their Pokémon GO debuts during Pokémon GO Fest 2026!

Exciting news, Trainers! Your Mewtwo can now Mega Evolve, including ones already caught.

Mewtwo can now Mega Evolve into Mega Mewtwo X or Mega Mewtwo Y. Mega Mewtwo X and Mega Mewtwo Y are exceptionally powerful Pokémon that require much more Mega Energy than other Pokémon to Mega Evolve. This energy will become available for the first time from Mega Mewtwo Super Mega Raids during Pokémon GO Fest 2026.

As a special bonus with its debut during Pokémon GO Fest 2026: Global, every Mega Mewtwo caught from Super Mega Raids will also have at least one Mega Level already unlocked and can be Mega Evolved without the initial energy cost.*

*if you’re lucky, it might even be at Mega Level 2 or 3!

Mega Mewtwo X Energy and Mega Mewtwo Y Energy are rare resources that can be used to Mega Evolve Mewtwo into either of its two powerful temporary forms.

Trainers who attend in-person GO Fest events this year can get early access to either Mega Mewtwo X or Mega Mewtwo Y! The City Experience in Tokyo, Chicago, and Copenhagen includes branching Timed Research that awards an encounter with Mega Mewtwo X or Mega Mewtwo Y that have the first Mega Level already unlocked!

Trainers who attend the Park Session can also take on Mega Mewtwo X or Mega Mewtwo Y at the end of their park session. More communication about the location within the park will be shared closer to the event.

Starting during Pokémon GO Fest 2026: Global, you’ll be able to collect these rare types of energy by defeating Mega Mewtwo X or Mega Mewtwo Y in Super Mega Raid Battles. During the event, Trainers can also collect Mega Energy by completing GO Fest Timed Research. Mewtwo caught from Super Mega Battles will have at least one Mega Level already unlocked!*

• Defeat Mega Mewtwo X in Super Mega Raids to get the energy you need to Mega Evolve Mewtwo into Mega Mewtwo X.
• Defeat Mega Mewtwo Y in Super Mega Raids to get the energy you need to Mega Evolve Mewtwo into Mega Mewtwo Y.

*If you’re lucky, it might even be at Mega Level 2 or 3!

Mega Mewtwo’s arrival isn’t the only big thing coming to Mega Evolution in Pokémon GO!

Faster Mega Level Progression

In an upcoming update, Trainers will have the option to use their extra Mega Energy to quickly level up their Pokémon’s Mega Levels without needing to wait for the daily progression cooldown.

Split Mega Level Progression

For Pokémon with multiple Mega Evolutions, such as Mewtwo, progression will now be tracked individually for each Mega Evolution. For example, the Mega Level for Mega Mewtwo X will increase independently from the Mega Level for Mega Mewtwo Y.

For Mega Charizard X and Mega Charizard Y, any Charizard that you have Mega Evolved will carry over its Mega Level to both Mega Evolutions after this split. Charizard’s Mega Evolutions will also require separate Mega Energy going forward, which you can get from taking on either Mega Charizard X or Mega Charizard Y in Mega Raids. If you already have Charizard Mega Energy, you will be awarded that amount of both Mega Charizard X Energy and Mega Charizard Y Energy after this split.

Learn more about other updates to Mega Evolution here.

Learn more here.

Become a Pokémon GO expert during in-person GO Fest events!

Trainers who have tickets to in-person GO Fest events—either the full GO Fest ticket or the City Explorer ticket—will receive four Timed Research opportunities on their first day of city gameplay. Each Timed Research is a Trainer Challenge based in one of four City Districts, focusing on a different aspect of becoming a great Pokémon GO Trainer. Each Trainer Challenge will award a unique medal commemorating the accomplishment. Trainers will need to explore at least two City Districts and complete the Trainer Challenge there to achieve the in-game Pokémon GO Expert medal. Only Trainers attending the in-person Pokémon GO Fest events will be able to complete the Timed Research and earn this special commemorative in-game medal.

The Pokémon GO Expert medal requires Trainers to physically explore the unique traits of each host city through Pokémon GO and complete the Trainer Challenge associated with each City District.

If a Trainer completes at least two Trainer Challenges, they can choose to encounter either Mega Mewtwo X or Mega Mewtwo Y with its first Mega Level unlocked.

Trainers playing in the same GO Fest city on multiple days will get only one set of Timed Research (including the bonus Timed Research) and rewards.

Trainers playing in different GO Fest cities will get one set of Timed Research (including the bonus Timed Research) and rewards per city—up to three sets total.

The City Experience Timed Research will be active for the duration of each event at the times listed below.

Pokémon GO Fest: Tokyo – Monday, May 25, at 12:00 a.m. through Monday, June 1, at 11:59 p.m. local time

Pokémon GO Fest: Chicago – Thursday, June 4, at 12:00 a.m. through Sunday, June 7, at 11:59 p.m. local time

Pokémon GO Fest: Copenhagen – Thursday, June 11, at 12:00 a.m. through Sunday, June 14, at 11:59 p.m. local time

Ticket-holding Pokémon GO Fest attendees are invited to join a Super Mega Raid at the end of their ticketed park session. For the last thirty minutes of the Park Experience, new Gyms will appear that allow over one thousand Trainers to take on Mega Mewtwo together!

Both Mega Mewtwo X and Mega Mewtwo Y will appear during this part of the event. Stay alert, Trainers—your help is essential to keep Team GO Rocket away from Mewtwo!

Mewtwo caught from the Super Mega Raids will have a Pokémon GO Fest 2026 Location Background and the first Mega Level unlocked!*

More information will be shared to ensure as many Trainers as possible can participate.

Be sure to join this exciting experience and leave Pokémon GO Fest with new Pokémon and exciting memories.

*If you’re lucky, it might even be at Mega Level 2 or 3!