Ok, so the game had a portal vibe going on with it and it was fairly good, I think in this case a massive improvement would be the ability to change direction in the air, once you jump you're kinda committed to it and can go too far or slightly to the side and fall off, having the ghosts be re-playable maybe as a looped image rather than on a button press would give the player more leeway when trying to figure out how to approach some levels.
Overall I think its a cool project and I had a nice experience once I had gotten to the 3rd ish level I found it was fairly fun to zoom around the levels, music was really good overall mechanics were nice too and the fact the levels are small meant that if I had failed I didn't loose much progress.