I kind of like it?
I'm kind of not sure why it's called an RPG though, it's not like you actually get to choose much about your character during the game - it's much closer to an action-adventure game like Zelda. Mind you, as a Zelda-like, it doesn't look particularly bad. It's a bit on the simple side, but sometimes simple is all you need.
Only gripe I'd have is that navigation in the world is a bit hard since all areas are vast and use the same tileset, so they start blending together after a while, but I guess it adds to the challenge, and fits with the retro style, since older exploration-driven games like Zelda or Metroid didn't have built-in maps - though perhaps having smaller, more memorable rooms that use different colors or different tilesets or have unique names could help - something like Jet Set Willy or VVVVVV used to do.