New Info?] Looks like Party Hat Gengar will be able to Mega Evolve

First event gengar was shiny! Kinda weird the mega evolution's illustration doesn't change tho.. : r/pokemongo

Will this be able to mega evolved since it can evolve to slowbro? : r/TheSilphRoad

Pokémon Go Mega Evolution update and new bonuses, how to Mega Evolve and all Mega Evolutions list

MEGA GENGAR RAID in Pokemon Go - Halloween 2020 Costume Gengar

Pokemon Capable of Mega Evolution. : r/TheSilphRoad

Cara mendapatkan Mega Evolution Gengar!

Pokémon GO: The Best Counter Pokemon for Mega Gengar

Mega Gengar Mega Mayhem Glass Tumbler

Gengars spawn on daily incense have its new costume! : r/TheSilphRoad

SHINY MEGA GENGAR EVOLUTION in Pokemon Go Halloween Event 2020