Does anybody know any unlockables and where to unlock it? I've currently unlocked Baby Daisy, King Boo, Diddy Kong and some others, and does anybody know any shortcuts? 50cc?100cc?150cc? And my biggest question is How do you use your mii as a Mario Kart player?
To unlock mii,s get a star on all new stages in 100. To get birdo and toadette (and a kart) play time trail on all stages. To get funky and dry bowser beat a bunch of staff ghosts. To get rossalena (misspelled her name) have a mario galaxy save on your wii. Those are the ones i remember.
Alternatively, you can get Princess Rosalina by getting an A rainking in pretty much everything. Though, if you can manage that, you should've unlocked everything already.