You can unlock Metal Mario to race with in Mario Kart 7 for the Nintendo 3DS.
To unlock Metal Mario, you need to get first place in the Special Cup on 150cc difficulty.
Check out my full guide for all of the unlockable characters in Mario Kart 7.
About DoubleDizle
Gamer, Software Engineer, Web Developer, Professional Geek
You also might be interested in
You can unlock Wario to race with in Mario Kart[...]
You can unlock your Mii to race with in Mario[...]
There are a lot of bonus parts you can unlock[...]