Yes you can. You can unlock mii outfit B from 5000 online wi-fi wins.
To unlock Characters in Mario Kart Wii you must beat the single player races. When you get a gold trophy in all of the races and a star ranking in all the races you will have all the characters
Only a few.
You have to get Mario Galaxy and then you will unlock her or get at least one star on all 150cc Mirror races and you will unlock her.
I have Mario Kart Wii and played it lots of times. I don't think you could unlock more characters. Or if you could, IDK.
Baby Mario is already one of the starting characters on Mario Kart Wii.
You do an amount of races or you can finish cc's.
keep playing all the races
yes only one
You could get 24 characters in all
To unlock karts and characters, you can get them by doing Grand Prixs or Time Trials, or winning lots of wifi races. Or, you can simply play the game alot.
there are no cheats
Do cups. I think you unlock them by doing the 150cc on it.