Learning the final part of the Song of the Hero from Levias, playing it to access the final spirit trail in Skyloft, earning the stone of trails which is used to open up the entrance to Skykeep, the location of the Triforce
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https://www.youtube.com/watch?v=_a-NzIX8FLU
Fighting through zombies in the School to meet her sensai Junji Morikawa, learning the zombies are caused by Rotten world, meeting the man responsible for it Swan who atends Juliets school, he unleashes dark purveyors all over the School, Juliet fights and kills the first of them Zed
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https://www.youtube.com/watch?v=pFbor1SUj4k
Feeding a hungry Luma to create Flash black galaxy and get the Jumping around in the dark star with help from Yoshi
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https://www.youtube.com/watch?v=8yK1C4awvr0
Part 27 The 3 stars from the 3 trial galaxies, Rolling gizmo galaxy, Loopdeeswoop galaxy and Bubble blast galaxy
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https://www.youtube.com/watch?v=kXEbs02oYHY
Part 20 Starting the last 42 stars by Collecting the 100 purple coins in The Gate to get the red star, getting the hungry luma Boo's boneyard galaxy star and completing the Good egg galaxy Dino Piranha speed run to earn a star
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https://www.youtube.com/watch?v=r3QB-yt1hig