Season of Mischief

Season of Mischief is the forth Season in Pokémon GO.

Featured Pokémon
The following Pokémon releases were featured in this Season:

Several Pokémon had increased spawn rates in the wild and from Incense or Lure Modules in cities:

Several Pokémon had increased spawn rates in the wild and from Incense or Lure Modules in forests:

Several Pokémon had increased spawn rates in the wild and from Incense or Lure Modules in mountains:

Several Pokémon had increased spawn rates in the wild and from Incense or Lure Modules near bodies of water:

Summer-themed Pokémon had increased spawn rates in the wild and from Incense or Lure Modules in the northern hemisphere:

Winter-themed Pokémon had increased spawn rates in the wild and from Incense or Lure Modules in the southern hemisphere:

Since the start of the event, Ditto can disguise itself as the following Pokémon. Also, wild Ditto can be shiny.

Special Research
A Special Research featuring 16 parts was made available throughout the season. Part 1 was released on September and part 3 was released at the start of Hoopa's Arrival. The other parts will be released during events.

Hey there, TRAINER! I'm glad you're here. A new adventure is about to begin! Not long ago, various Legendary Pokémon began emerging from mysterious rings that suddenly appeared in the sky. After some research, we discovered it was Hoopa, that Mischief Pokémon, that was responsible. Hoopa's rings allow it to teleport things—including itself—wherever it wants. That power makes it hard to track down, but for some reason, Hoopa seems to keep returning to this area. How do I know? Well, I was doing some lab work recently when my glasses were lifted straight of my head. Spark was there assisting me, and he said he saw a small, lavender-colored hand emerge from a ring and snatch my glasses. Pretty bold, eh? Luckily, he and Candela managed to retrieve my spectacles by chasing down the rings that were popping up at random around my mobile lab. So, at least I can still see. Haha! Needless to say, I'm still not sure why Hoopa's here. Tracking it down has been difficult, but with your help, I'm sure we'll crack the case in no time! For now, why don't you try using an Incense to see what Pokémon you can find in the area?

As with all great mysteries, solving this will take time, patience, and trust. I'll need to work along at some points, but I promise I'll return to share my findings and help propel us forward. You just keep exploring the world as you always do. You never know what you might find! I'll report back here once I have more information on Hoopa. Thanks in advance for your help, TRAINER!