Ultra Bonus Event 2018

Ultra Bonus Event  in 2018 was the first Ultra Bonus Event in Pokémon GO that was given to Trainers after their completion of Global Challenge. It featured a series of action-packed rewards about the Kanto Pokémon.

Features
Pokémon originally discovered in the Kanto region were seen more frequently.

These Shiny Pokémon were released with the start of the event: PS Geodude (074) PS Graveler (075) PS Golem (076) PS Grimer (088) PS Muk (089)

Region-exclusive Pokémon from Kanto with addition of Tangela and Porygon were added to the 7-km Eggs, so Trainers have the perfect opportunity to complete their Kanto Pokédex.

On September, Niantic announced to extend regional hatches to October.

The following tier 1 to 4 Kanto-themed Raid Bosses were available for a time of this event. The Legendary Birds were available from September to September, and Mewtwo come after them until October  for the first time to challenge in normal Raid Battles. Other than Regirock, other Raid Bosses were replaced by Kanto Pokémon.

During the Legendary Birds period, all Raid Eggs only took 15 minutes to hatch, and the Raid time was extended to 90 minutes.

Shop special offer
There were three phases of special offer in the shop. The first set was available from September to September, 2018, focusing on hatching 7-km Eggs.

Starting on September, 2018, there was the second set focusing on Mewtwo raid.

Starting on October, 2018, the last set of boxes were available.

Trivia

 * It is one of four events that revolved around the Kanto-region Pokémon in particular, the other ones are:
 * Kanto Celebration
 * Let's Go Celebration
 * Pokémon Day 2019