Love the music and subtle gameplay mechanic where the air attack pushes you back. The boss battle was also very fun to dissect and optimize, and having a speed run timer got the competitive juices flowing.
Biggest critique is the button layout was so un-intuitive for me, but one could say that it added to the difficulty and charm. If I had it my way, I would get rid of the click attack, make it "J" on the keyword and change jump to "K" instead of the awkward big space bar.
Here are some screenshots to challenge others :)
Hard Run:
Normal Run: