The movement is very polished, with a coyote jump and jump buffer + star. The only bug is that the jump buffer is activated when you jump onto a ledge.
The art and music are top-notch.
I finished the game in 20 minutes, with 209 deaths 0_0)
The jump with magics orb mechanics are very interesting, but there is no implementation of mechanics for jumping down (I can give you an idea - locations with water that constantly lifts you up, and to get somewhere, you need to apply strong downward velocity).
It is also possible to add the ability to control the player during a jump, because you feel helpless if you haven't calculated the angle correctly. But that's your decision, and this is just my opinion.
Best game i`ve seen on this jam so far, keep up the good work!
(in a spare of time, please play my game too :D)