The soundtrack and pixel art are wonderful!
I’m sure all of the issues are things that you’re aware of. Some of the items and text break the art rules, adding more colours and high resolution. It really makes it feel more like a unity game than a Gameboy game. I found that the ghosts really love coming in from an angle that makes them impossible to hit with your light, so the most progress I was able to make was when the game got confused if I lost or not.
I despite all of that, I love the ambition behind it. I think continuing to work on this would be well worth the effort!