The Extraterrestrial emote is an Rare Fortnite emote. Extraterrestrial was available via the Item Shop for 500 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite Extraterrestrial Skin Details
Interplanetary groove.
Fortnite Extraterrestrial Skin PNG Images
Here is the PNG images of Extraterrestrial below!