After dying hundreds of times, I finally cleared the Champion's Road. Here's how I did it.
Tip 1: Use multiple characters to save more powerups. Cat Suit and Tanooki Suit will make the last part much easier. The camera will zoom out sometimes, though.
Tip 2: You can skip many tricky parts using Rosalina's double jump. Run in circles to reach max speed before doing a long jump.
Tip 3: The path to the first green star is the most difficult part. Practice to find your own rhythm.
Good luck!

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