The art is cool; a lot of care went into the visual design. It's very sci-fi!
It'd be nice if there was some kind of window resize; I had to shrink my computer's resolution to play it.
The movement is really finicky. The gravity button often sent the character careening horizontally. Collisions also seem quite strange; the character would often get stuck in floors.
Is 'K' supposed to be pressable? I noticed that something happened when I pressed it, even though it's not listed in the controls. Though, all it did was break the physics and cause the character to float.
The soundtrack is cool!
Good work! Congratulations on the submission!