Very cute game! The tiles and character art are nicely done. Something that could be improved to make the environment in the cave part more diverse, so that it would be easier to find your way around, because I kept getting lost. For example, a large stone that I will remember to turn left there. Also, the jump. It happened in several places that I wanted to jump from the very edge of the block while running, but the character did not jump. A 0.1 second tolerance would be good.
One more thing, I found a cheat. If I exit to the menu and back, I return to the starting point, but keep the objects I have taken. This can shorten the return journeys.
All in all, nice work. Keep it up!