This is a fun concept. Took me back to cave exploration in my Minecraft days. I liked the twist of being able to see a bird's eye view of the entire map in the beginning, in order to plan my route. I would like to see this expanded to be more difficult. By the way, a little audio would go a long way -- just mash the "random" button on any free chiptune sound effect generator and save the ones you find usable! Lastly, great job on the walking animation.