The Gameplay is simple.
Use either the Joy Stick or the control stick to move around. Then you use the "X" button to confirm actions and check weird things in the overworld.
In battles, everything you will use it the Joy stick or the D+Pad to select your oponents to attack and to move around. The battles are turn based.
This game is also known as Eiyuu Densetsu Gagharv Trilogy: Shiroki Majo in Japan.