Golden Sun: The Lost Age Cheats

sad town will be brighter
Anywhere is Prox, except in houses, you can use Reveal. When you exit the
reveal circle, the town will be brighter than before.

Why it works: When you use reveal, it forms a circle and the rest of the screen
turns black. While doing this, almost everything turns grayscale, therefore
removing the fog. When you exit the circle, the game does the same function
it would do any other time you exit the circle and doesn't bring the fog back.