Well you need to try to get first in every race/ cup there is and try and get gold to unlock more karts, bikes and chars
There is no maniac in Mariokart Wii. Check out the characters that you can get by asking this question in the green tab: "What characters can you unlock in Mariokart?"
Sadly, you cannot unlock him on the ds. he is unlockable on mariokart wii fortunately.
No, You can't unlock Dark Toad in MK wii
By finishing the race's
depends on what saga your playing
you have to have gold in all the cups to unlock it :)
there is no hat cup
keep playing
You must get a one star rank or more in the 100cc Retro cups
ROB is not in Mario Kart Wii, he is only in Mario Kart DS.
by getting gold on the star cup
Get a 2 star ranking on every level.