I really like the grahics and feel of this game, well done :) I have never been any good at platformers, and this was a bit hard for me, could not get past the jumbboost thing. I recorded my playthrough:
Just so you know, to get past that jump-spring thing, you gotta run and jump onto it so you go the right fast enough to avoid the deleted chunk, and then once you get above it you press left
