You unlock it by getting gold trophies in every cup in 150cc. And you don't turn mirror on and off; it's a separate difficulty altogether.
50cc 100cc 150cc mirror mode.
To get mirror cups in Mariokart Wii you willk have to complete all of the cups on all engune sizes
You have to complete Grand Prix mode on single player and get first place on every cup in 50 cc, 100 cc, and 150 cc. After you get first place on everything, that's when Mirror Mode will be unlocked.
Mirror mode is where you do the same courses as normal in 150 cc, but they are all swapped around eg. where you would normally turn left, you turn right.
Mariokart wii
Race 16 Corses On Time Trails mode. It's that simple!
if you have Mario Super Galaxy, have a saved game file and win 50 Grand Prix races. Or get a one star rating in all the cups and tracks. Even Mirror mode!
all you have to do is get a gold medal in all the other races of all the other cups, then you should unlock mirror.
No there is not another mode after mirror mode
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?"
Mirror mode only comes in 150cc.
It makes the course look like it's held up to a mirror.