From the Super Mario Wiki, the Mario encyclopedia
The player starts on a pink platform. Once the player jumps off the platform, it disappears. While the player is flying downwards, they must jump on all 10 Waddlewings in their Flying Squirrel Form, and collect at least 40 coins to earn a medal in the challenge. If the player misses a Waddlewing on the way, they automatically fail the challenge.
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