The PlayStation version of Konami‘s Azure Dreams is an excellent level-grinder, and this Game Boy Color version is also very good, but differs somewhat from the original.
It still takes place in the provincial city of Monsbaiya, and you are still a Monster Hunter. Whereas the PlayStation version uses a 3D isometric viewpoint, this one instead goes for an overhead, 2D view. With titchy characters and intricately-detailed locations rendered as flat pixel art.