Simple DS Series Vol. 23: The Puzzle Quest: Agaria no Kishi Cheats :
Unlockable - Alternate Ending
It is possible to receive an alternate ending to the game by freeing the Sorcerer that Darkhunter wishes you to take to the Red Tower near the start of the game. Free the Sorcerer and you will gain access to three areas you normally wouldn't near the end of the game.