Pokémon Go's ongoing 'Crown Clash: Taken Over' event introduces changes including Team Rocket Leader and Giovanni line-ups, new Shadow Pokémon, and Special Research for earning a Super Rocket Radar.
Players are advised to utilize Charged TMs during this event to remove Frustration from their meta-relevant Shadow Pokémon. Team Go Rocket balloons will appear more frequently, approximately every two hours.
Special Research tasks involve catching Pokémon, purifying shadow Pokémon, defeating Team Go Rocket grunts and leaders to earn various rewards like XP, Stardust, and encounters with specific Pokémon.
Additional components of the event include Timed Research available for purchase, Field Research tasks related to Team Go Rocket, and raid targets featuring various shadow Pokémon.