Beautiful game in every aspect: art, music, sound, gameplay, everything. I had a lot of fun playing this and it was a pleasure to experience.
The difficulty skyrocketed after the second heart. And, honestly, I gave up on the 5th one. The amount of enemies spawning felt oppressive. Didn't seem like I had enough time to both damage the heart and manage enemies but maybe it's just a skill issue.
Phenomenal entry!