Fossil Roo

Story mode. Written for a first playthrough and kept free of spoilers — it will not tell you what happens here, only what the game is asking of you.

Fossil Roo is the tunnel under the sea between the Mist Continent and the Outer Continent. It is a switch puzzle wrapped around a mine, and it closes behind you.

So the order matters. Take everything first, flip switches second.

Take everything first

• Elixir on the entrance screen
• Ether and Fairy Earrings in the tunnels
• Lamia’s Tiara at the Mining Site
• Survival Vest somewhere in the nest screens — guides put it in three different rooms, so look around rather than walking to a spot

Buy Stiltzkin’s bundle

He is here, and he is selling a Phoenix Pinion, a Remedy and an Ether for 555 gil. That is a good price on its own.

It is also his third stop. If you are the kind of player who wants the reward for buying from him at every stop, missing this one ends that for the run.

Armodullahan chases you

This is not a random encounter. It is a scripted thing that comes down the tunnel after you, and you are not meant to kill it.

You can hurt it — knock roughly 800 HP off and it goes away — but it comes back, and it cannot be killed permanently. Steal an Ore, a Hi-Potion and an Ether and move on. Thunder and holy hurt it; shadow does not.

Do not burn your stock trying to win. There is no reward for it.

Lani

She is waiting on the far side. No experience, no gil, no drops, no elemental weakness — she is a wall you push through.

Steal first: Ether, Gladius, Coral Sword. The Gladius is a real weapon upgrade and the whole reason to spend turns stealing.

The digging

There is a minigame with a mole at the Mining Site. It is optional, and one of the things it can turn up is Madain’s Ring, which you cannot get anywhere else this run.

If you want it, do the minigame now.

Then flip the switches

Publishers disagree about which switch seals the area — No. 3, No. 4, or an unnumbered one by the ivy wall. Since nobody agrees, treat the whole switch sequence as the line you do not cross until you are done.

Game Notes

Fossil Roo is the first place in FFIX where the game is unambiguous that you are leaving something behind.

Everything before this had an out. Burmecia burns and you come back. Lindblum is attacked and you return to it. Cleyra is lifted off the map and even that gets revisited in a sense. Fossil Roo just shuts.

And it announces it in the most ordinary way possible: a switch puzzle. No warning screen, no “are you sure”, no character remarking on it. You solve a small machine and it turns out the small machine was a door.

That is the first half of the game ending, and it does not say so.

Completionist mode. Full spoilers, in play order, with every permanent loss called out before you reach it. 4 entries below are marked where our sources disagree with each other — we have not picked a winner for you.

The +10,000 pattern shows up twice in one area

Our stored figures:

Both are exactly 10,000 above the majority figure. That is the same offset we found sitting under roughly twenty-five boss records when Zaghnol’s stored 11,574 turned up against a published 1,574 — the discrepancy that made us retract the Ozma claim.

Caves of Narshe prints our raw figure for both of them. That is the third time CoN has matched our stored field where everyone else prints the lower number.

That is worth saying carefully, because it is easy to over-read. CoN matching us does not corroborate us; it most likely means CoN is reading the same stored field we are, by the same kind of extraction. Two readers of one table agreeing is one observation, not two.

What is genuinely new here is Jegged’s phrasing. Jegged does not print an HP figure for Armodullahan at all — it tells you to deplete about 800 HP to end the encounter. That is an instruction written by someone describing play, not data. And it lines up with 818, not with 10,818.

So the evidence now looks like this: the stored field says 10,818, extraction sites echo the stored field, and the one source describing what happens at the controller describes the low number. That leans toward the offset being real and the played value being the lower one — but leans is the honest word. It is still playtest entry number one, and the check is unchanged: fight something in this band and count. Armodullahan is now a better test case than Plant Brain, because you do not have to kill it to find out.

Until someone runs it, we render the published figures, as we have since the retraction.

What is not in dispute about these two

Lani gives no experience, no gil and no drops, and has no elemental weakness or resistance at all. Steal Ether, Gladius, Coral Sword; the Gladius is the only thing of value the fight produces and it is the reason to spend the turns.

Armodullahan is a scripted one-way chase, not a rare encounter — which two publishers get wrong by filing it in the random-encounter tables. It cannot be permanently killed. It is weak to thunder and holy (our bitmask reads 68 = 4 + 64) and halves shadow (128). Our element read matches CoN and Drslice. Game8 alone prints it as taking 100% from everything, which is the only flatly wrong element table we found in the area.

The Griffin here is the Treno Griffin

Our field gives Griffin 1,470 HP in the Fossil Roo tables. That is the same record as the Griffin you can fight in Treno’s Knight’s House arena — two publishers confirm it is one bestiary entry appearing in two places, not two enemies that share a name.

Worth noting because the reverse — one name, two records — has now caught us twice, at Zaghnol and at Skeleton. Both happen. You cannot assume either.

Feather Circle 619, Abomination 879, Seeker Bat 594 — and Seeker Bat is the same record from Pinnacle Rocks.

Stiltzkin’s third stop, and the thing it is attached to

Phoenix Pinion, Remedy, Ether for 555 gil. Unanimous. Every publisher that covers Fossil Roo lists it identically, which is rare enough to be worth recording.

This is his third stop, and buying from him at every stop is tied to an achievement in the re-releases. Miss it here and the run is done for that achievement — there is no later purchase that makes it up, and the area is one-way, so there is not even a walk-back.

This is a small instance of a pattern we have now hit repeatedly: cross-area systems are where the published corpus is weakest. Every guide covering this area lists the bundle correctly. Only some of them tell you it is a stop in a sequence. A reader following one chapter at a time is told the price and not the stakes.

Where the Survival Vest is

Five publishers put it in one room, three in another, two in a third, and Jegged contradicts itself inside a single page. One source — ffextreme — calls it a “Survival Belt”, which is a different item and appears to be a straightforward error rather than a regional name.

The item is not in doubt; our field carries a Survival Vest award on the nest screens. The room is genuinely unsettled in the corpus, so we tell you to search the nest rather than pretending to a precision nobody has.

Madain’s Ring is permanently missable

It comes out of the digging minigame with the mole at the Mining Site, not from a chest. It is on Final Fantasy Wiki’s permanently-missable list, and Fossil Roo being one-way is what makes it permanent.

If you are running a completionist file, the digging is not optional.

Which switch closes the area

Three answers circulate: switch No. 3, switch No. 4, and an unnumbered switch by the ivy wall.

We are not going to arbitrate that from the desk — the switch puzzle’s state machine is exactly the kind of thing our field extraction reads badly, because the branches are the whole content. The practical advice survives the disagreement intact: the area is one-way and the switches are what make it one-way, so finish looting before you start.

No ATEs, no Stellazzio

Unusual for Disc 2, and worth stating because completionist checklists sometimes carry a coin entry for this area by inertia. There is no coin here. The only optional content is the digging and Stiltzkin.

Game Notes

The two bosses in this area are the clearest illustration yet of why we do not publish our own numbers over the corpus.

We have a stored field that says 15,708 and 10,818. We have a strong internal model of where those numbers come from. We have a publisher that matches us exactly, twice. Every instinct built by the last sixteen areas says our data is closer to the machine than the guides are — and it usually has been.

And then Jegged, which does not print an HP figure at all, says “deplete about 800”, and that one sentence is worth more than the agreement of two extraction sites, because it was written by somebody holding a controller.

That is the lesson the Ozma retraction bought us and it is still the right one. Reading the game’s data tells you what is stored. It does not tell you what happens. Those are usually the same thing. When they are not, the person who played it wins, and the only way to find out which case you are in is to play it.

Twenty-five boss records are waiting on somebody counting damage in one fight.