The pixel art for the background and especially Mokou's animations are excellent.
The moody arrange of Reach for the Moon, Immortal Smoke is gorgeous too.
I really like the concept of trying to inflict self-harm in an indirect way. What would be traditionally an attack move is instead a means to an unachievable end, and that's quite poetic, even if twisted.
I understand it was done in a really short time but that really left me wanting to see the "mechanic" be used in more ways, and maybe to expand upon Mokou's sad story.