Maschiff, the Rascal Pokémon, and Mabosstiff, the Boss Pokémon, will make their Pokémon GO debuts! You might find Maschiff in Eggs, Field Research, or via the GO Pass.

You can use 50 Maschiff Candy to evolve Maschiff into Mabosstiff.

For the first time in Pokémon GO, you’ll be able to encounter Shiny Flamigo—if you’re lucky! You may encounter Flamigo in the wild or when you complete GO Pass and Field Research tasks. You may also hatch Flamigo from Eggs.

You’ll also have an increased chance of encountering Shiny Pidgey from September 8 at 10:00 a.m. to September 11 at 10:00 a.m., and Shiny Carvanha from September 11 at 10:00 a.m. to September 14 at 8:00 p.m.

Starting with the Mega Squads event, you’ll be able to increase Mega Beedrill’s and Mega Houndoom’s Mega Level all the way up to Super Max Level for the first time in Pokémon GO! Learn more here.

As discovered during Mega Finale, Pokémon that are eligible to unlock Super Max level can learn an additional Charged Attack while they’re Mega Evolved! Learn more here

Beedrill will now be able to use an additional Charged Attack, Fell Stinger+, when it’s Mega Evolved.

• Trainer Battles: 40 power and increases Attack by one stage
• Raid Battles: 140 power

The power of this attack will increase with the Pokémon’s Mega Level!

Houndoom will now be able to use an additional Charged Attack, Dark Pulse+, when it’s Mega Evolved.

• Trainer Battles: 60 power
• Raid Battles: 150 power

The power of this attack will increase with the Pokémon’s Mega Level!

Remember: You must increase a Pokémon’s Mega Level to the third level, Max, before you can increase it to Super Max.

To help your Pokémon reach Super Max Level, Mega Evolving alone won’t be enough—you’ll need to use that Pokémon’s Mega Energy to power it up! Participate in Mega Raids and catch Weedle, Pidgey, Houndour, and Carvanha during this event to earn lots of Mega Energy to help complete this task.

The following Pokémon will appear in raids.

Mega Raids
September 8–September 15
Mega Beedrill*

September 11–September 15
Mega Houndoom*

Reach Major Milestones on your event GO Pass to unlock the following bonuses.

Tier 1 Bonus Starting at Rank 1

• Chance to obtain Mega Energy when catching Weedle, Pidgey, Houndour, Carvanha, or their Evolutions.

Tier 2 Bonus Starting at Rank 15

• 2× Hatch Stardust
• GO Pass Deluxe: 1/2 Egg Hatch Distance when Eggs are placed in an Incubator during the event period

Keep an eye out for additional bonus tasks for this GO Pass during the event!

Learn more about the event GO Pass below!

6:00 p.m. – 7:00 p.m. local time

September 10: Weedle*, Kakuna**, Beedrill**

September 13: Houndour*, Houndoom**

You may encounter event-themed Pokémon in the wild, including Weedle* and Flamigo*!

From September 8 to September 11, you may encounter event-themed Pokémon in the wild, including Pidgey*, Rookidee*, and more!

From September 11 to September 14, you may encounter event-themed Pokémon in the wild, including Houndour*, Carvanha*, and more!

The following Pokémon will hatch from 5 km Eggs.

September 8 at 10:00 a.m. to September 11 at 10:00 a.m:
Emolga*
Fletchling*
Rookidee*
Flamigo*

September 11 at 10:00 a.m. to September 14 at 8:00 p.m.
Sandile*
Pancham*
Maschiff
Flamigo*

Event-themed Field Research tasks will be available!

The following Pokémon will be available to encounter when you complete Field Research tasks!

September 8 at 10:00 a.m. to September 11 at 10:00 a.m:
Weedle*
Pidgey*
Fletchling*
Flamigo*

September 11 at 10:00 a.m. to September 14 at 8:00 p.m.
Houndour*
Carvanha*
Nickit*
Maschiff
Flamigo*

A GO Pass is a free, limited-time progression track available during a specified period. By collecting GO Points, you can increase your rank to earn rewards.

Trainers will automatically receive GO Pass: Mega Squads on Tuesday, September 8 at 10:00 a.m. local time. You can collect GO Points and rank up to get additional rewards through Monday, September 14, 2026, at 8:00 p.m. local time.

For US$4.99*, Trainers can upgrade to the GO Pass Deluxe, a paid version of the GO Pass that offers upgraded rewards and faster progression.

For US$6.99*, Trainers can upgrade to the GO Pass Deluxe + 6 Ranks to also automatically earn enough GO Points to reach Rank 7.

While progressing through the GO Pass Deluxe, you’ll be able to claim all of the rewards from both the free GO Pass and GO Pass Deluxe. You can upgrade to a GO Pass Deluxe at any time and still collect rewards from previously unlocked ranks.

Rewards unlocked in the GO Pass will expire on Wednesday, September 16, 2026, at 8:00 p.m. local time, so be sure to claim your rewards before they’re gone!

Complete Pass Tasks to rank up your GO Pass to earn the following rewards.

• Encounters with event-themed Pokémon
• Mega Energy for Beedrill and Houndoom
• Incubator
• Rare Candy
• Ultra Balls
• And even more goodies!

Trainers who upgrade to the GO Pass Deluxe can also earn the following rewards.

• Maschiff Jersey
• Additional encounters with even more event-themed Pokémon!
• Even more Mega Energy for Beedrill and Houndoom
• Super Incubators
• Rare Candy XL
• And even more goodies!

Your GO Pass Deluxe purchased via the Pokémon GO Web Store will activate as soon as the GO Pass begins.

Trainers who upgrade to GO Pass Deluxe: Mega Squads on the Pokémon GO Web Store will receive 10 Ultra Balls, five Max Revives, one Premium Battle Passes, and five Max Potions as a gift with purchase.

Trainers who upgrade to GO Pass Deluxe: Mega Squads + 6 Ranks on the Pokémon GO Web Store will receive 10 Ultra Balls, five Max Revives, two Premium Battle Passes, and five Max Potions as a gift with purchase.

Or stock up on the essentials alongside your upgrade with the web-exclusive GO Pass Deluxe: Mega Squads + 6 Ranks Ultra Box which includes 20 Ultra Balls, 10 Max Revives, 10 Max Potions, and five Premium Battles Passes as a gift with purchase!