Super Mario Galaxy 121 Stars Walkthrough Part 45: The Three Trials

How is it possible that I did so well on these? o_O ESPECIALLY Bubble Blast Galaxy...
Clckables:

-----Comet Observatory-----

Bubble Blast Galaxy:
0:00 The Electric Labyrinth

Rolling Gizmo Galaxy:
5:30 Gizmos, Gears and Gadgets

Loopdeeswoop Galaxy:
8:13 The Galaxy's Greatest Wave

-----Super Mario Galaxy Menu-----
https://pkgam.tumblr.com/post/181233049510/super-mario-galaxy-menu

-----Super Mario Galaxy Playlist-----
https://www.youtube.com/playlist?list=PL300BB778B9DEE63A

Enjoy!