very cool game and I love it. I have 2 complaints that keep me from giving this the highest rating of games I've played so far. First my computer crashed when I beat the game XD Second the mid air movement setup got me killed to spikes way too much. I got really confused because you can change direction mid jump unless you hit a wall or max your speed and it locks. I noticed in the comments that you plan on tweaking the movement you always have control which is great! Though I think if you just make it consistent and make spikes lenient the other way would be great too.
Thank you for the chance to play your awesome game