I like the music for this game quite a bit it as it fit the whole nostalgic theme. The art initially seemed simple and good but in the top down section in felt kinda dark and blurry. Please take the rest of the feedback as you will, my perspective may be the minority but if it helps for future projects than good.
For future reference or if you are going to continue this project, I found that the character to be painfully slow. I get what your trying to achieve with the pace however especially for the top down shooting section, I normally stop in one area moving the bare minimum to get rid of all the enemies and the found my self feeling removed from the story as my character just walked really slowly with no danger.