Final Fantasy 1— Bestiary

As with other lists, before I get into defining monster characteristics, I will list out the monsters in Final Fantasy 1, in ID order. This is the order that they are listed in the Bestiary. The Bestiary # and the monster IDs below are not related.

0×00	Goblin	Goblin Guard	Wolf	Warg Wolf
0×04	Werewolf	Winterwolf	Lizard	Fire Lizard
0×08	Basilisk	Hill Gigas	Ice Gigas	Fire Gigas
0×0c	Sahagin	Sahagin Chief	Sahagin Prince	Pirate
0×10	Buccaneer	Shark	White Shark	Bigeyes
0×14	Deepeyes	Skeleton	Bloodblones	Gigas Worm
0×18	Crawler	Hyenadon	Hellhound	Ogre
0×1c	Ogre Chief	Ogre Mage	Cobra	Anaconda
0×20	Sea Snake	Scorpion	Sea Scorpion	Minotaur
0×24	Minotaur Zombie	Troll	Sea Troll	Shadow
0×28	Wraith	Specter	Ghost	Zombie
0×2c	Ghoul	Ghast	Wight	Purple Worm
0×30	Sand Worm	Lava Worm	Evil Eye	Death Eye
0×34	Medusa	Earth Medusa	Weretiger	Rakshasa
0×38	Ankheg	Remorazz	Lesser Tiger	Sabertooth
0×3c	Vampire	Vampire Lord	Gargoyle	Horned Devil
0×40	Earth Elemental	Fire Elemental	White Dragon	Red Dragon
0×44	Dragon Zombie	Green Slime	Grey Ooze	Ochre Jelly
0×48	Black Flan	Black Widow	Tarantula	Manticore
0×4c	Sphinx	Baretta	Desert Baretta	Mummy
0×50	King Mummy	Cockatrice	Pyrolisk	Wyvern
0×54	Wyrm	Allosaurus	Tyrannosaur	Pirahna
0×58	Red Pirahna	Crocodile	White Croc	Ochu
0×5c	Neochu	Hydra	Fire Hydra	Guardian
0×60	Soldier	Water Elemental	Air Elemental	Water Naga
0×64	Spirit Naga	Chimera	Rhyos	Piscodemon
0×68	Mindflayer	Garland	Green Dragon	Blue Dragon
0×6c	Clay Golem	Stone Golem	Iron Golem	Black Knight
0×70	Death Knight	Astos	Dark Wizard	Dark Fighter
0×74	Crazy Horse	Nightmare	Death Machine	Lich
0×78	Lich (Chaos)	Marilith	Marilith (Chaos)	Kraken
0×7c	Kraken (Chaos)	Tiamat	Tiamat (Chaos)	CHAOS
0×80	Echidna	Cerberus	Ahriman	2-Headed Dragon
0×84	Scarmiglione (cloaked)	Scarmiglione (undead)	Cagnazzo	Barbariccia
0×88	Rubicante	Gilgamesh	Omega	Shin Ryuu
0×8c	Atomos	Typhon	Orthros	Phantom Train
0×90	Death Gaze	Devil Wizard	Abyss Worm	Elm Gigas
0×94	Flare Gigas	Unicorn	Yellow Ogre	Mad Ogre
0×98	Mage Chimera	Yellow Dragon	Holy Dragon	Mythril Golem
0×9c	Killer Shark	Death Manticore	Blood Tiger	Dark Eye
0xa0	Bloody Eye	Flood Gigas	Poison Eagle	Black Goblin
0xa4	Knocker	Desert Pede	Gloom Widow	Duel Knight
0xa8	Squidkraken	Pharoah	Bonesnatch	Silver Dragon
0xac	Black Dragon	Blue Troll	Earth Troll	Poison Naga
0xb0	Earth Plant	Yamatano Orochi	Dark Elemental	Devil Hound
0xb4	Sekhret	Catoblepas	Hundlegs	Undergrounder
0xb8	Death Elemental	Wild Nakk	Dark Wolf	Rock Gargoyle
0xbc	Sahagin Queen	Reaper	Python	Skuldier
0xc0	Red Flan	Prototype	Revenant

Bestiary data

Table location: There are four separate instances of the FF1 bestiary stored in the ROM. You’ll need to edit all four to make intelligible changes to the monsters.

• 0×1de044 — 0×1df8a3.

• 0×223f4c — 0×2257ab.

• 0×227054 — 0×2288b3.

• 0×22a880 — 0×22c0df.

Data structure size: 32 bytes per monster.

This means that each table is 0×1860 bytes in size. With a good hex editor, you can change one table, copy it, and paste that table over the others.

Examples, showing bytes 1 to 16

Monster	Exp.	Gil	HP	Cowardice	AI byte	Evasion	Defense	# of hits	Hit Rate	Attack	Agility	Intellect	Luck
Goblin	0600	0600	0800	6a	ff	06	04	01	02	04	03	01	01
Warg Wolf	5d00	1600	4800	6c	ff	36	00	01	12	0e	1b	03	01
Werewolf	8700	4300	4400	78	ff	2a	06	01	11	0e	15	08	01
Death Machine	007d	007d	d007	c8	20	60	50	02	c8	80	30	32	01
Minotaur	e901	e901	a400	7c	ff	30	04	02	29	16	18	08	01

Examples, showing bytes 17 to 32

Monster	Cond?	Inflict	Family	Magic Def.	Weakness	Resist	Item drop	Drop %	Zeroes
Goblin	00 00	00	04	10 00	00 00	00 00	00 00	00	00 00 00
Warg Wolf	00 00	00	00	2e 00	00 00	00 00	01 0b	04	00 00 00
Werewolf	02 01	04	91	2D 00	00 00	00 00	00 00	00	00 00 00
Death Machine	00 00	00	80	c8 00	00 00	fb 3f	03 1b	05	00 00 00
Minotaur	00 00	00	00	5f 00	00 00	00 00	02 02	06	00 00 00

Decoding various bytes of information

The Cowardice byte

I’m not exactly sure exactly how this byte works, but it has a definite effect on the threshold when a monster runs from the party. The higher the value, the more powerful the party needs to be for it to run, and the less likely it is to run.

The AI byte

This byte is the ID of the AI entry from which the monster will pick its special attacks. See an explanation of the AI table here.

Cond?

I do not know what effect these values have, but they seem to be non-zero when a monster has a condition inflict bound to their physical attack.

Inflict

This byte controls which condition or conditions might be inflicted in the event of a successful physical attack. The Werewolf is illustrative here:

0	0	0	0	0	1	0	0
Confuse	Mute	Sleep	Stun	Blind	Poison	Stone	Kill

Family

The 8 bits that make up this byte specify which families this monster is a member of. Let’s look at the Werewolf.

91 =	1	0	0	1		0	0	0	1
	Regenerating	Magical	Aquatic	Lycanthrope		Undead	Giant	Dragon	Evil

The Werewolf regenerates, and is a Lycanthrope, as well as Evil. It’s important to note that “Regenerating” is both a property as well as a Family designation… if this bit is set, the monster will regain about 5% of its maximum HP every turn.

Weakness and Resist bytes

The Weakness and Resist bytes follow the same bit pattern. This also is the same bit pattern as found in the Weapons structure and the Armor structure. To illustrate these bytes, let’s take a look at the Death Machine’s Resist bytes:

Byte 1— fb =	1	1	1	1		1	0	1	1
	Quake	Lightning	Ice	Fire		Death	Time	Stone	Stun
Byte 2— 3f =	0	0	1	1		1	1	1	1
	—-	—-	Mind	Confuse		Silence	Sleep	Blind	Poison

So we see that the only attack that a Death Machine does not resist outright are Time-based attacks (Stop spell, for instance).

Item Drop and Drop %

The first Item Drop byte specifies the item type that will be dropped. A 0×01 denotes a consumable item, a 0×02 signifies a weapon, and a 0×03 references an armor.

The second Item Drop byte specifies the ID of the item from the correct table. Therefore an Item Drop combo of 02 03 would drop a Staff (ID 0×03 from the Weapon table.

The Drop % byte, predictably, is the percentage chance for the specified item to drop. Each individual monster has a chance to drop an item, and you can receive more than one item in a single battle.