The biggest event of the season is here. Pokémon GO Fest 2026: Mega Finale kicks off this week, delivering a massive wave of Mega-Evolved Pokémon, exclusive raids, special backgrounds, and branching event paths.
Whether you are hunting for high-tier raid counters or grinding for Shiny Megas, here is your essential guide to the largest Mega event in Pokémon GO history.
Key Event Dates & Times
| Event Phase | Dates & Times | Key Highlights |
| GO Pass: Mega Finale Availability | Starts Mon, Aug 31 at 10:00 AM local time | Claim your free event pass and branch path. |
| Mega Ascension | Mon, Aug 31 (10:00 AM) – Fri, Sep 4 (11:59 PM) | Pre-event week with rotating Mega Raids and special bonuses. |
| GO Fest 2026: Mega Finale | Sat, Sep 5 & Sun, Sep 6 (10:00 AM – 6:00 PM local time) | Main event weekend featuring Super Mega Raids and rotating habitats. |

Mega Mewtwo X & Y Debuts in Super Mega Raids
The highlight of the event is the long-awaited arrival of Mega Mewtwo X and Mega Mewtwo Y in Super Mega Raids.
- Saturday, September 5: Mega Mewtwo X takes over Super Mega Raids.
- Sunday, September 6: Mega Mewtwo Y takes center stage.
Both forms will feature exclusive Mega Evolution Special Backgrounds upon capture.
Heading out for a full day of raiding? Make sure your battery stays full during back-to-back Super Mega Raids with a fast-charging power bank on Amazon.

Choose Your Kalos Starter: Branching Timed Research & GO Pass
Trainers can access a special Timed Research story allowing them to select one of the three Kalos partner Pokémon: Chespin, Fennekin, or Froakie.
Your choice dictates your rewards throughout the GO Pass: Mega Finale, including avatar items and Mega Energy:
- Chespin Path: Unlocks the Chesnaught T-Shirt avatar item and enough Mega Energy to Mega Evolve into Mega Chesnaught (Grass/Fighting).
- Fennekin Path: Unlocks the Delphox T-Shirt avatar item and enough Mega Energy to Mega Evolve into Mega Delphox (Fire/Psychic).
- Froakie Path: Unlocks the Greninja T-Shirt avatar item and enough Mega Energy to Mega Evolve into Mega Greninja (Water/Dark).
Note: Upgrading to the GO Pass Deluxe grants additional Mega Energy to raise the Mega Level of your chosen partner faster.
Dynamic Special Background Effects
Pokémon caught in Mega Raids during both the Mega Ascension lead-up event and the Mega Finale main weekend have a chance to feature a Mega Evolution-themed Special Background.
When you Mega Evolve a Pokémon that possesses this specific background, it activates enhanced visual effects for the entire duration of its Mega Evolution.

Habitat Rotation & Raid Schedule
Eight rotating habitats will spawn wild Pokémon and dictate non-Mewtwo Mega Raid bosses throughout the weekend. Four habitats will cycle each day, appearing twice per day.
Saturday, September 5 Habitats
(Active 10:00 AM – 11:00 AM & 2:00 PM – 3:00 PM)
- Verdant Woods
- Mental Canal
- Sinister Alley
- Circuit Square
Wild Encounters:
- Weedle, Bellsprout, Scyther, Pinsir, Roselia, Snover, Venipede, Skiddo
- Event Starters: Chespin, Fennekin, Froakie
Raid Rotation:
- Megarreides: Mega Beedrill, Mega Victreebel, Mega Pinsir, Mega Abomasnow
- Super Megarreides: Mega Mewtwo X
Sunday, September 6 Habitats
(Active 10:00 AM – 11:00 AM & 2:00 PM – 3:00 PM)
- Glacial Forge
- Battle District
- Aerial Perches
- Prismatic Stroll
Wild Encounters:
- Onix, Skarmory, Aron, Snorunt, Beldum, Drilbur, Amaura, Bergmite
- Event Starters: Chespin, Fennekin, Froakie

Raid Rotation:
- Megarreides: Mega Steelix, Mega Skarmory, Mega Aggron, Mega Glalie
- Super Megarreides: Mega Mewtwo Y
Looking to catch every wild spawn on the move? Grab the latest auto-catcher accessories on Rakuten to streamline your grinding during habitat rotations.
Which starter path are you picking for your GO Pass, and how many Mega Mewtwo raids are you planning to clear this weekend? Let us know in the comments below!
