Mirror Courses
Once you have gotten the gold in all of the 150cc races, the title screen will change and mirrored courses will be available. They are not reverse courses; they are reflections.
Super Ghosts
Finish these courses with the times shown, and you'll get to race against the "Course Ghost".
Luigi Raceway 1:52
Mario Raceway 1:30
Royal Raceway 2:40
Turbo Boost
At the beginning of the race, you can hold 'A' between the second and third lights to get a turbo boost. If there's a bigger racer in front of you, you can jump into them and get launched ahead of the crowd.
