Does anyone know the name of this Gameboy Advanced game?.?

We used to play it a while ago...It's something like the land was taken over by something dark, and the prince had to go all over the land to get weapons, and one of the first objectives was to rescue a princess from a dragon. It was turn based fighting, and the hero moved about on a landscape comprised of different types of land, like hills or sand or forest, but each was represented by a square picture. The hero was square also.