Thanks, this is very nice to hear!
The game was made for the B&W jam and the voting is still ongoing, so I cannot update it yet. However, I have some improvements already implemented and working on more, including a pause menu (with a restart button, indeed), rebindable controls, better camera movement. I will add all of that in a couple of days.
I have also created a palette swapping system (apparently every 1-bit game worth its salt has to have one), but I'm not yet sure how to use it. Perhaps it will be some kind of progression system.