I'm super stoked to know you liked the concept of it. There was a boss fight in plans but I didn't make it in time :( Since the planned mechanic for the boss was a ranged projectile, the mines were the only way to trap him. Yeah the mines became pretty useless when that didn't happen.
I am planning to make this into a full length RPG along the likes of older zelda or pokemon games! Be sure to check it out after the updates!