Sony and Microsoft do what Nintendon't.
Art for Metroid Dread showing Samus Aran in her suit looking at the camera.

Fortnite is known for including all sorts of crossover character skins from other games, television shows, music, and movies. Microsoft has allowed Master Chief from the Halo franchise to appear in the game, while Sony offered up characters such as Kratos from God of War and Aloy from Horizon Forbidden West.

Then there is Nintendo.

Former Epic Games chief creative officer Donald Mustard says that Metroid's Samus Aran could have been in Fortnite if it weren't for Nintendo doing Nintendo things. In a recent interview with Game File, Mustard confirmed that Epic Games wanted Samus to appear in Fortnite. The problem was, as Mustard points out, Nintendo "got really hung up on their characters showing up on platforms that weren't their platforms."

They would be thrilled to have Nintendo characters in Fortnite, but just only if it’s on their platform.

For me and for all of Epic, we’re like, ‘That is an absolute must. We want to make sure that Fortnite is the same experience, no matter what screen or device you’re playing on.’​
Obviously, neither side budged and the Samus skin never ended up coming to Fortnite, Switch exclusive or otherwise.

This probably doesn't come as too much of a shock for those who have seen even the slightest bit about how protective Nintendo is with their intellectual properties. This is the same company that recently got the Switch emulator, Yuzu, taken offline. Nintendo is also notorious for issuing copyright strikes and takedown requests on YouTube videos featuring gameplay from Nintendo titles.

While it isn't a Samus skin, Fortnite will soon have Billie Eilish added to the game. The musical artist will be the latest to be added to the Fortnite Festival main stage.