New Info?] Looks like Party Hat Gengar will be able to Mega Evolve : r/TheSilphRoad

Pokémon Go: Party Hat Gengar Raid Guide (January 2022)

Well that's new. Mega Gengar is not displaying properly when trying to take a buddy photo. it's some sort of 2D negative image. : r/TheSilphRoad

Raichu, Pokémon GO Wiki

Pokémon GO Halloween 2023 - Costumes & Greavard/Houndstone assets pushed (Via PokeMiners) : r/TheSilphRoad

GO Field Guide (@GOFieldGuideApp) / X

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

Does Mega Gengar Keep His Costume? : r/pokemongo

Gengar POKEMON GRAPHIX NS NEW ERA 59 FIFTY Cap 7 3/8 (58.7 cm) 「 Pocket Monsters 」 Pokemon Center only, Goods / Accessories

NEW GEN 4 EVOLUTIONS! + Shiny Pinsir Hunt and Nashville Meetup Announcement!

Gengar, Pokémon GO Wiki

MEGA EVOLVING Lucky Shiny Party-hat Gengar!!!

Pokémon Go' Mega Evolution Event 3: Start Time, Mega Gengar, Research Tasks & More

New Info - Mega Pokemon Evolution Costs : r/TheSilphRoad