Quick Thoughts.

Zelda changes color just like shopkeepers do. Bomb any suspicious walls and burn any shady trees. Armos hide secrets. Level 6 is difficult, so be prepared. Snakes in Level 2 drop money often, just like Blue Moblins drop bombs. Secret shops sell super items. Go up, up, up the mountain. North, west, south, west leads through trees. Eastmost peninsula is the key.