Like most of the other comments, I liked the-8 bit look and sound, but the gameplay way really confusing. I had no idea what was going on.
The most important piece of advice that I can give you for your future games is - think about the player's experience. Think about giving the player feedback to let them know that they've succeeded or failed in an action. Think about how you can make things in your game more intuitive so that there's less experimenting and guessing.
Congrats on submitting!