Tokyo: Pokémon GO players have only a few days left to catch one of the rarest event-exclusive Pokémon before it disappears permanently from the game. The special 10th anniversary Gimmighoul, introduced as part of Pokémon GO’s anniversary celebrations, will leave the game on August 1, making this the final opportunity for players to add the unique Pokémon to their collection.

The limited-time Pokémon was released during Pokémon GO’s 10th anniversary event on July 4, 2026. Similar to the 9th anniversary Gimmighoul released in 2025, the special version is expected to become a collector’s item because event-exclusive variants rarely return once their availability period ends.

Players looking to secure this rare Pokémon will need to act before July 31, as the anniversary-themed Gimmighoul event concludes before the deadline.

Exclusive anniversary Gimmighoul leaving Pokémon GO

The 10th anniversary Gimmighoul features a special design with the number “10” displayed on the coin attached to its back, distinguishing it from the regular version available in the game.

The Pokémon was introduced as part of Pokémon GO’s anniversary celebrations, which marked a major milestone for the mobile game. The franchise also celebrated its 30th anniversary in 2026, making the event particularly significant for long-time fans.

Last year’s 9th anniversary Gimmighoul did not return after its event ended, increasing expectations that the 10th anniversary version could also become permanently unavailable.

For collectors and competitive players, limited-time Pokémon variants often become highly valuable because they cannot be obtained after the original event period.

How players can get 10th anniversary Gimmighoul

Players can encounter the special Gimmighoul through multiple methods during the event period.

The available options include:

  • Coin Bags
  • Golden Lure Modules
  • GO Pass rewards
  • Special Timed Research

Players can also access a paid Timed Research task for $1.99, which guarantees a Gimmighoul encounter.

However, not all encounters offer the same difficulty level. Gimmighoul appearing through Golden Lure Modules is reportedly harder to catch compared with encounters obtained through Coin Bags.

Trainers who want the rarest possible version can also try their luck at finding a shiny Gimmighoul or one with a Special Background. Combining these rare features could create one of the most sought-after versions of the Pokémon from the anniversary event.

Professor Willow Pikachu also nearing event conclusion

The 10th anniversary Gimmighoul is not the only limited-time Pokémon currently available in Pokémon GO.

The game recently introduced Professor Willow Pikachu, a special costume version of Pikachu released as part of the anniversary celebrations. Some raids featuring this unique Pikachu are still available, but they will end at 8 PM local time along with the related Timed Research.

Unlike Gimmighoul, Professor Willow Pikachu may return in future years because the event is connected to Professor Willow’s birthday celebrations.

Pokémon GO celebrates major anniversary year

July has been an important month for Pokémon GO, with several major additions and events introduced for players.

The game celebrated its 10th anniversary in 2026, while the wider Pokémon franchise completed 30 years of existence. Recent updates included the introduction of Mega Mewtwo X and Mega Mewtwo Y, along with increased opportunities for players to encounter Mewtwo.

The anniversary celebrations have attracted both long-time players and returning fans, with several rare Pokémon and special events being introduced throughout the summer.

New Pokémon and events coming in August

While the 10th anniversary Gimmighoul event is ending soon, Pokémon GO players can look forward to several new additions in August 2026.

Mega Starmie will arrive through a special event on August 22 from 11:00 AM to 5:00 PM local time. During the event, players will have increased chances of encountering shiny Starmie through Super Mega Raids.

The event will also guarantee a Mega Level 1 Starmie and provide players with six free Raid Passes.

Additionally, Pokémon GO’s Ultra Unlock: Water Festival event in August will introduce three new Generation 8 Water-type Pokémon:

  • Arrokuda
  • Barraskewda
  • Cramorant

These Pokémon will make their debut in Pokémon GO as part of the upcoming festival.

Rare Pokémon remain a major attraction

Limited-time Pokémon have become one of the biggest attractions in Pokémon GO, encouraging players to participate during special events. Exclusive costumes, shiny variants and anniversary editions often become prized additions for collectors.

The 10th anniversary Gimmighoul represents one of these rare opportunities. Once the event ends, players who missed it may have no guaranteed way to obtain the special version again.

Conclusion

Pokémon GO players have only a short window left to catch the exclusive 10th anniversary Gimmighoul before it disappears on August 1. With its unique design, shiny possibility and limited availability, the Pokémon could become one of the most valuable collectibles from the game’s anniversary celebrations. Players who want to secure it should complete encounters before the July 31 deadline while also preparing for new events arriving in August.