I've been a ファン of Rosalina since I was in kindergarten, and I know a lot about her. So when Mario Kart 8 came out, a new unlockable character was in the roster. This was Baby Rosalina of course, and I bet most ファン would be excited that Rosalina finally has a baby version of herself. I, on the other hand, think that there is no way she could be related to, または be the past Rosalina.

She can't be the past form of Rosalina, and here's my evidence. If you're a true ファン of Rosalina, あなた would've played the game Super Mario Galaxy. Once あなた unlock the kitchen, あなた also unlock another room, The Library....