I seriously loved the game, and regarding the visuals, I especially enjoyed the menu UI you created—clean and minimalistic. The game reminded me of Portal-type puzzles, even though there are no portals.
Edit: In the submission feed, people with web games also later add the option to build for Windows. I even fixed a silly bug. I don’t think building your game for Windows right now is against the rules! You have a very cool game and this is not fair :(((