If you can find the blue spirit, then you're questions will be answered! Here are some hints that you should take close not of from the game:
1. The frogs that tell you about the blue spirit, and how you are "too experienced to see it"
2. The frog that tells you about walljumping
3. There is another frog outside of Frog Village which says he just saw the Blue spirit. It's possible that the blue spirit might appear in that room... but only when you are "unexperienced"
Instead of trying to get to frog village early, maybe try to get to that frog who saw the spirit early?