Hello! I loved your pixel art and the game mechanics, it tied in pretty well with the theme and it was pretty fun to play.
Although, I think that it would have been great to have a tutorial for the player to start, it was a little challenging to understand them at the start and a 2-3 minute introduction with a tutorial enemy would have really helped. Also, the music was pretty loud, so next time you could also try to implement a settings area where it's possible to alter it.
Overall, really wonderful game, I'm so glad I played it!