Is she supposed to be Rosalina in astral projection form or something?
I don't think we know what the Cosmics are. Cosmic Mario and Cosmic Luigi, then Cosmic Rosalina are different. They're similar, physically, but the Cosmic Mario Bros.' are competitive, possibly evil, whereas Cosmic Rosalina seems to be helpful or nurturing.
Whether Cosmic Rosalina is being controlled by the real Rosalina, we don't know. Cosmic Mario Bros.' sure weren't. The Cosmics may be a whole race of beings, with their own sets of personalities.
Well, this "Cosmic Witch" is gonna be your Super Guide when you're not able to go past some of the obstacles in the game.
If you ask for her assistance, you will get a Bronze Star instead of Gold Star.
Who is that Rosalina lady? ...is she a witch?
lol, I remember that. You know, she does have a lot of similarities to the Good Witch of the North, including bubble transport...