Well none in particular, it's pretty easy from what I remember since the battle system isn't the most complex and they walk you through it pretty good, but the general rules of RPG applies, save often and make sure you got enough healing items though you can only carry 15. Though there's a ton of sidequests some that lead to other sidequests and some that are only available at certain times so without a guide it's pretty hard to trigger everything but also a lot of fun since you can trigger stuff without knowing it, sometimes it's enough that you just sleep at the inn for example.