Overall, I enjoyed your game. I'm not a huge fan of old-school NES games (like Zelda and classic RPGs), but considering I tend to not play games like this... I did have fun with yours :-)
Overall Fun:
Kind of like I said above... not usually my kind of game. I'm not a fan of just wandering around map-to-map with no clear indication of an objective (but that's my opinion-many do love this). The only real gripe I have is enemy combat/AI. They don't attack much, so I didn't find myself getting hit a lot. Plus receiving health is very forgiving. Also... the red goblin/kobold monsters barely attacked with their throwing axe... and many times, they were just walking in place against a wall, bush... and not even approaching me. Other than that... it was a really fun game!
Sound/Music:
Very fitting and loved the retro tone of the music. Good sound effects, as well. Times perfectly with attacks and they all fit the scenario.
Art/Graphics:
Looks amazing for what you were going for. Love the pixel sprites and tilesets! Monster artwork looked great!
Controls/UI:
Controls were smooth and responsive. Attacks connected, you moved in all directions, and nothing felt clunky, broken, or bugged. Very well done here!