You have to rank at least one star in every cup in 50 cc to mirror mode in single player. Your rank is based on your driving technique on the track. A one star rank is the next best rank after an A. You can also earn 2 and 3 stars if you perform well on the track. 3 stars is the best rank you could earn. To earn at least one star, you have to do the following:
Get a final score of 52 or better.
Lead most of the laps.
Stay in first place for a good period of time.
Do a lot of tricks on ramps.
Avoid having to use Bullet Bills to catch up.
Use lots of techniques such as wheelies, avoiding POW Blocks, etc.
Do not fall off edges too much (one time is acceptable). If you get hit by many Spiny Shells and still win, this indicates that you are resistant and will probably have a high rank.
Do not get hit very many times by any item!
You can only see your golden star when you play online.
Get gold Cups on all the 150cc Grand Prix races.
In Mario Kart Wii you have to get a rank star or more on all of the 150cc grand prix cups
50cc 100cc 150cc Mirror Mode-win all 150cc cups to unlock
Earn at least a one star ranking in each 150cc Wii Grand Prix cups
In order to unlock Daisy, you must complete the 150cc Special Cup in Grand Prix mode.
mariokart wii- hes already there marikart ds-just do grand prix 100cc or 150cc something like that
Win all of the 150cc Retro Grand Prix cups with a 1 star rank or better.
You unlock him by getting a one star ranking or better on all 150cc Wii Grand Prix cups.
Win all mirror 150cc grand prix getting at least 1 star on every cup.
There are no grand prix records on Mario kart wii, but to make sure look in your instruction booklet.
No, there is no cheat or code for the 150cc Class in Mario Grand Prix mode. You'll have to unlock it by obtaining gold trophies in all the cups on the 50cc and 100cc Classes. After all, practice makes perfect:)
Win 1st place in every Grand prix in every class (50cc, 100cc, 150cc, etc), complete all the missions. By doing this you will have unlocked every cart and grand prix and then you have completed it