How do you get an SMG file in Mario Kart wii?

Have a Super Mario Galaxy save on your Wii and race 50 times OR get 1 star in the 8 Mirror Mode Cups

Irock Too's Edit: Technally, you can't get a SMG savefile on Mario Kart. To get one, you must buy Super Mario galaxy and play it for as long as you want. Then, race 50 time trials.

Ryanization Edit: Like Irocktoo said you can't get an SMG savefile on Mario Kart Wii, But You can get a Character unlocked for the game. To get Roselina like ID1207363646 said with a SMG savefile race 50 races or get a 1 star rank or more in all Mirror Mode cups.

Wiret Edit: Like the last two said,you cant get a super Mario galaxy save on your wii, but there is a third way to unlock Rosalina. When Nintendo decide to put the galaxy colesseum back online on Mario Kart Wii, if you get the fastest time out of everyone, you unlock Roselina. Or you could get action replay for wii and hack to get the character/colesseum.