A very charming game with amazing sprite work (the Coalbuster fighter sprite is immaculate!).
Was lacking in the sound/music department, especially in the non-fight scenes. The cave bandit camp part went on for too long, especially when there were so many enemies rushing you and it was impossible to dodge them.
I could use corpses as barricades, so that no enemies could get to me, that was funny.
Overall a great demo!
Congratulations on your first published game, great work!