You can't do it on 50cc. Get one star rank or better on ALL Mirror Mode cups.
OR
Have a Super Mario Galaxy 1 account, do a couple of races , and you should have her.
by chaz99
there is no baby rosalina in Mario kart.
No Rosalina doesn't. But the stars are like her kids... kinda
Ugh! There is no baby rosalina!
yes =)
you have to beat 50cc
Unlock the star cup and play it.
Here is a cheat just for you... If you have a super Mario galaxy file, you automatically unlock Rosalina for play in Mario kart!
In order to unlock this kart, you must win the 50CC Leaf Cup.
50cc star cup
Do 50cc and get at least one star rank in all 50cc cups
Win the 50cc Star Cup.
Rosalina is not in Super Mario Kart. She is in Mario Kart Wii.