The 3rd coin was so hard... so I got it separately after the 1st and 2nd.
Coins
0:05 Tap the teleport ring very late. Minicoin (1/3)
0:06 Tap only the first green ring and hold. Minicoin (2/3)
0:08 Very fast double click. Minicoin (3/3)
0:10 1st coin.
0:40 Full jump. 2nd coin. (Watch out! The timing is so tight.)
4:20-4:22 Jump and tap the glowing switch. Then pass the narrow gap in wave mode to get the 3rd coin. I was very lucky!
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