Play around with it. DO NOT TURN ON TURBO MODE There's a lot of really cool optical illusions that you can see if you stare in the center.
I coded all of this out of boredom. Mario Kart Wii: Luigi Circuit/Mario Circuit for song Set the speed to 61 and stare at the center to see a ninja star. Set the speed at 89 or 91 and stare at the center to see a bigger ninja star.
