Charizard will get a special costume in Pokémon GO's 6th Anniversary Event which will also see the release of Shadow Latios.

As the name suggests, it’s a new variant of Charizard with a party hat costume. If you’re looking to find out how to catch Party Hat Charizard in Pokemon GO, your search ends here.

It shows a Charizard terastallized into a Dark-type, but now in its black-skinned shiny form, the red insides of its wings reflecting a hundred other colors in the cracked-mirror design.