How old is Super Mario Galaxy?

Answer 1

There is no age for Rosalina. She is just another character. The creators never came up with an age. In the game, however, she is considered to be over 100 years old even though she doesn't appear to be that old. === === Technically speaking, Rosalina is a little over 100 years old (or more), since the Comet Observatory comes to the Earth once every hundred years, and she started her jpurney through the cosmos as a child.