
This probably won't be the only FF gamebook I run after this, since we went through 5 non-FF ones prior to this, but Ill take a look at what's left from my collection after we run through this one: there're lot of FF books left, but the ones that can be fairly completed in a single playthrough are rapidly running low!
Let's take a look at the cover:

Let's see if the introduction inside the cover tells us anything else:
And of course, the rules....it's been a while, but this particular book doesn't require anything more than the Standard FF Boilerplate Rules!:
Skill, Stamina, & Luck
STAMINA score: Roll two dice. Add 12 points to the result. We roll a 5+3 and get 20
LUCK score: Roll one die. Add 6 to the result. We roll a 4 and get 10
SKILL score reflects your expertise in combat, your ability with weapons, and your dexterity. STAMINA is your general constitution and "Life points" . LUCK score shows how lucky you are. None of them may exceed their Initial score unless specifically stated.
Eating a meal restores up to 4 points of STAMINA; you may only eat one meal at a time.
Testing your Luck: When instructed by the book to Test your Luck, roll two dice. If the result is equal to or less than your current LUCK score, you are Lucky. If the result exceeds your current LUCK score, you are Unlucky. Whatever the outcome, you must deduct one point from your current LUCK score every time you Test your Luck. The more you use your LUCK, the less likely you are to be Lucky.
Combat:
The combat sequence is then:
1. Roll two dice for your opponent. Add the total rolled to its SKILL score. This is the Attack Strength of your enemy.
2. Roll two dice and add the total to your own current SKILL score. This is your Attack Strength.
3. If your Attack Strength is the higher, you have wounded your opponent: deduct 2 points from your opponent's STAMINA..
If your opponent's Attack Strength is higher, it has wounded you: deduct 2 points from your own STAMINA.
If both Attack Strengths are equal, you have avoided each other's blows.
4. Begin the next Combat Round, starting again at step 1. This procedure continues until either you or your opponent has a STAMINA score of zero. If your opponent's STAMINA score reaches zero, you have killed it and can continue with your adventure. If your own STAMINA score reaches zero, you are dead.
Often you will have to fight more than one opponent at a time. Sometimes you will treat them as a single opponent; at others, you will be able to fight them one at a time; and sometimes all of them will be able to attack you, while you defend yourself and may attack only one of them. Specific instructions will be given whenever you meet more than one opponent.
Using Luck in Combat
You can use your LUCK in combat to inflict a particularly serious wound, or to minimize a wound that has been inflicted on you.
Whenever you wound an opponent, you may Test your Luck. If you are Lucky, you have inflicted a severe wound: deduct an extra 2 points from your opponent's STAMINA. If you are Unlucky, you have merely grazed it, and you deduct 1 point less than normal from its STAMINA.
If you have been wounded, you can Test your Luck in exactly the same way. If you are Lucky, the wound upon you was only a glancing blow and you can deduct 1 less point of STAMINA than usual. If you are Unlucky, the wound is serious: deduct 1 extra point from your STAMINA.
Speaking of standard.......does how Hero still get the traditional penile-related name? That's up to you, of course!

Any takers?
Adventure Sheet:
SKILL 9/9
STAMINA 20/20
LUCK 10/10
Equipment: Sword, Leather Armor, Shield
Provisions: 10 Meals (+4 STAMINA)