Beautiful pixel art, I like the color palette you've used! Gameplay wise, the character movement could possibly be a bit smoother, but in general it feels pretty good to jump around. How did you implement the "bullet time" when destroying the orbs??

Very nice. I might suggest a visual differentiation between the fixed tiles and the switchable ones, though.

Interesting idea, but gameplay felt far too random, and the controls seemed unnecessarily difficult to work with.