The Scorpion, Raiden, and Kitana (Mortal Kombat) skins in Fortnite were introduced in Chapter 6 Season 2 with the update v34.20. Scorpion, Raiden, and Kitana are part of the collaboration between ...

Some have quibbled about the naming convention (as Raiden wasn’t playable in the original version of Mortal Kombat 3), but the excitement seems to far outweigh any particular nitpicking.