1800 coins
you get coins
First, you have to unlock the Mirror Mode of the Mario Kart game by winning all the 150cc cups with gold. Then, you have to unlock the Lightning Cup. By unlocking and winning the Mirror Lightning Cup in Gold, you can unlock the Blue Falcon. It's good you asked, because the Blue Falcon is an amazing kart. It is very fast. (Just try not to go offroad with it)
the blue falcon is the ansewer
there is no goomba to unlock in Mario kart wii
You get one part per 50 coins
If you need to unlock her in Mario kart wii here is the answer: Win the 150cc Special Cup. If you need to unlock her in Mario Kart 7 here is the answer: Win the 150cc Mushroom Cup. Source: I beat Mario Kart Wii, and I unlock Daisy in Mario Kart 7.
You collect a certain amount of coins, you unlock players.
Get 20000 coins or Get a 10000 Vs. rating (multiplayer online).
I've heard that it takes 50 coins, but I have 3,300 coins. I don't have it.
You can't unlock Pauline in Mario Kart Wii,he isn't in that game.
there is no baby rosalina in Mario kart.
You cannot unlock Baby Mario in Mario Kart DS. He is only in Mario kart: Double Dash!!! and Mario Kart Wii.