Ah man.. it was too difficult for me to get further than the 3rd level with the blue sky, floating platforms and walljumping. That was after struggling to get past the turtle on the platform.
It's a real shame because I wonder how much content there is, given how many mages there are in the menu. :c
Like the other commenter, I rescued one of the mages in the first level and picked up a spell, but didn't see it in the menu.
It also took me a while to get used to the spell system, as I associated the arrow keys with directions.
Good job on the mechanics though, the wall jumping & platforming feels solid. Maybe have one or more people unfamiliar with the game playtest it next time so players like me don't run into difficult surprises.