You nailed the retro look of this game, this is probably one of my favorite looking games so far. Mechanically, this was super unique and very interesting. I think where this game excels is in the level design, you do a good job of interesting mechanics and putting them to use in interesting ways. My one wish is that there were more levels especially utilizing the mechanics introduced later in the game. I feel like there's a lot of room for complex and very challenging puzzles.
All in all, congrats on submitting, and fantastic job!