Neat! It was really fun figuring out the sequence of steps you need to take to solve each level, and you created a lot of levels to showcase the idea of what could be done with this core mechanic, which is fantastic.
My only complaint would be that some platforms sometimes get a bit in the way of the jumps you need to make, which forces you to restart a whole level you had almost finished! I think coyote-time as others have suggested could help a bit!