It took me over 3 years to realize that the sound when your cursor hovers over a level is actually really similar to The Legend of Zelda: Ocarina of Time's sound when Navi floats around you.
I found some glitches, so here they are.
1: White Screen Softlock
This one basically just softlocks the game if you exit the tutorial through the pause menu.
2: Down-Air Noclip Glitch (7-3)
(mind the name, i play Smash a lot.)
When you perform a downward attack mid-air while in the middle of a solid wall's side, you have a chance of clipping inside and falling to your death.