I love the idea behind this one, and I genuinely think its completed state would have been a lot of fun! A lot of the enjoyable elements are present even in the barebones, with the subversion of "slaying the dragon", the use of the "but thou must" trope, and all the dry humor to be found in what's available. The graphics make very good use of shading and I think it conveys everything well, and the music has the right theming and tone. It feels a lot more like a game that could have been a real Gameboy release as opposed to a more retrospective looking game.
I hope I get to see this idea fully realized, and you should be proud of the progress you made!