Mega Battle Challenge

Mega Battle Challenge is an event in Pokémon GO that occurs in the second week of September 2020, as part of Mega September event series.

Features
CP of Mega Beedrill was significantly higher during the event. Regardless of CP level of its standard form, after Mega-Evolving Beedrill, it would have CP equal to Pokémon Level 44.

Featured Pokémon
Mega Houndoom will be released after Trainer complete 275 million battles.

Selected Bug-type Pokémon had increased spawn rates in the wild and from Incense or Lure Modules:

These Shiny Pokémon were released with the start of the event: PS Ledyba PS Ledian

Field Research event tasks
There were several Field Research tasks exclusively for the duration of the event.

Timed Research
During this event there was a Timed Research series that was titled Mega Battle Challenge in game. A total of 135 Beedrill Mega Energy can be obtained for completing it.

Shop special offer
A one-time purchase bundle of Remote Raid Pass was available from the start of the event.

Trivia

 * The official blog claimed that different Shadow Pokémon would be used by Team GO Rocket, but no new lineups were discovered.
 * According the community research group, the proportions of Dark-, Grass- and Psychic-type Grunts had increased.
 * In the first few hours of event, catching any type of Pokémon counted towards the Ledyba task, rather than catching Bug-type only.