It's a sidescrolling platform RPG very similar to Zelda II where you have overhead maps and overhead towns as well in this game, while random battles are in sidescrolling format (this is a favorite genre of mine). I have no clue how the story goes, but it's about a chick with green hair that has some cool weapons like knives and guns.
Since it's a old game, there are no saving options, just passwords and they are LONG passwords and to top it off, they are in Japanese! I would like to see you or anyone else write a walkthrough for this game because I love platform RPGs and this one might be better than my first impression. However, just prepaire for the password situation.