Very simple, more like a demo, but it has nice features like enemy fight, treasure room, items and exploration. The music is great. The graphics are not in my preference, but objectively are quite nice.
As of the things to improve and tips for future: make the treasure drop just once, give some feeling of movement (some simple animation or subtle change to scenery) and just add more stuff, but I understand that this had to be made in one week.
Well done!