The Emerald Weapon roams the ocean floor. It appears once you've gotten a Gray or Red Shinra Submarine in Disc 2, after completing the Junon Huge Materia Quest.
Who To Use:
Cloud, Barret and Yuffie. Cloud is the weakest member of the trio, as the damage he does depends on the amount of current HP he has for his Ultima Weapon. However, since that weapon can do very high damage and does have a lot of slots, it's suggested that you use it. If you think he'd be better off without it, then the Ragnarok is your second-best choice (get it from Proud Clod during the Raid on Midgar City section of the walkthrough (end of disc 2)).
Barret and Yuffie on the other hand, are very strong. Yuffie can do the most damage (9999) consistently with the Conformer, because it bases damage on whether an enemy is stronger than her, and the Emerald Weapon is certainly much more powerful than she is. Since you're equipping Barett with many mastered materia, he's good to have in your party since his Missing Score does damage based on the amount of AP an equipped materia has. He can do 9999 damage with a full set of eight mastered Counter Attack materia attached to the Missing Score.
In order to master these materia quickly, give Cloud the Apocalypse Sword, Yuffie the Magic Shuriken, Wind Slash, Rising Sun, or Twin Viper, and give Cid the Scimitar (Cid and Cloud are the only characters with triple-growth Materia weapons). Equip the materia you have to them, then go fight Magic Pots (feed them Elixirs before attacking them), or Movers, both of which can be found in the 'lake' area of the Northern Crater.
Optionally, go to the glass passage leading to the Undersea Mako Reactor in Junon and fight a Ghost Ship there. 'Morph' it into a Guide Book, then go to Kalm, talk to the man who is going on a journey, and trade the Guide Book for the Underwater Materia. This item will nullify the 20 minute time limit you must endure when normally fighting the Weapon.
Level 30 or higher. Make sure you have enough MP for at least one casting of Life or Life 2.
Unless one character has the Underwater materia equipped, you have a 20-minute time limit in which to kill the Emerald Weapon. If it is still alive when twenty minutes have passed, all your characters die instantly and stay dead.
Equip each character with the recommended equipment. If you don't have the equipment listed above, then try to buy gear with lots of materia holders.
Equip each character with one Revive Materia and enough HP Plus materia so that they have at least 8800 HP. Try to waste only 2 or 3 holders on HP Plus materia. The rest of the holders should all be filled with Counter Attack materia.
When you fight the Emerald Weapon, don't do anything. Wait until itattacks a character. The person it attacked will then counterattack with their weapon once for each Counter Attack materia you have equipped.
So, for example, if every character has 16 slots, and you wasted 6 of them on other materia and whatnot, your characters would still attack ten times in a row and still have their Time Bar use! And when the Emerald Weapon does an attack that hits everyone, like the Revenge Stamp or Emerald Beam, you'd attack 30 times in retribution (using the given example). Remember, your character will counterattack even if the enemy misses, or if they use an attack that doesn't do physical damage (the MP-draining attack of the Eyes, for example).
This eliminates the need for using Haste or other such spells--you'll be inflicting damage continuously but be left with a 'free' attack period with your Time Bar. Don't waste this on attacking; use Limit Breaks, or if your characters are low on HP or MP, use a restorative item.
Optionally, you may want to equip a Throw materia with 'Coin' enabled; then use this ability to inflict 9999 damage against all the Eyes and the body at once. It's a waste to use this when the Eyes aren't around, though.
Personally, I don't suggest using Final Attack or the Phoenix Materia; just use Life 2 manually as (let's face it), Final Attack won't always kick in. However, if you're worried about the Aire Tam attack (which the Emerald Weapon has never used on me, at eight battles running), you may consider linking everyone's Revive materia to a Final Attack materia; just remember that you may end up getting creamed anyway.
Finally, you can run away from the Emerald Weapon! However, it's HP and stats. will be restored next time you fight.
As above, but instead of Counter Attack Materia, use the 'Knights of Round' strategy described in the 'Defeating Ruby Weapon' section below.
The Ruby Weapon can be found in the Corel Desert (where the Gold Saucer is), after you destroy the Diamond Weapon in Disc 2. It normally appears as a small decoy, but if you encounter it and run away, it will stay on the desert's surface and stand around, growling.
Anybody. Since the Ruby Weapon can be beaten so easily, you might want to use characters with double and triple AP growth weapons (Cloud, Cid, Red 13, Yuffie, etc.) so that you can make the most of the AP you'll earn.
Any! However, one character should have enough MP to cast Knights of Round and Hades in a single casting (you may want to pick up some MP Plus materia from Cosmo Canyon if no one meets this requirement).
Within the first few rounds of combat, the Ruby Weapon will use the Whirlsand attack to remove two characters from the battle. This can be avoided by:
a) Killing off your two allies prior to the battle.
b) Killing them off within the first few rounds.
Then, simply revive them when the Ruby Weapon sticks it's hands into the ground and you can fight with them. Remember that if it removes the 'Ruby's Tentacles' from the ground, it can use the Whirlsand attack again, so stay on your toes.
The other condition is that the Ruby Weapon will absorb damage from elemental spells and be completely immune to all attacks (even the Magic Hammer enemy skill) while standing around. Only when it's tentacles are waving around (it's hands are in the ground), can it be damaged.
You can run away from the Ruby Weapon! However, it's HP and stats. will be restored next time you fight.
First of all, to get all three characters into the battle with you, just have Ruby kill two of them off before it does the Whirlsand attack, or kill them off prior to the battle so that you start the battle with only one person.
This strategy comes courtesy of JOHN HENRY, so thank him when you manage to kill the Ruby Weapon! It's been tested and modified a bit by myself as well.
First, equip your characters with enough HP Plus materia so that they have at least 8000 HP. Then, give one character the following materia:
You need to give at least one character Master Command (for the Mime ability), or simply give them the Mimic materia, but it's best if all characters have a the 'Mime' ability.
Now, go into battle. Once only one character is left, the Ruby Weapon will stick it's tentacles into the ground. At this point, revive your friends (you did remember to keep them alive, right?). Now, have one character perform a W-Summon, and cast Knights of Round, and Hades (or Hades then Knights of Round, the order doesn't matter). All your characters should mimic that and keep doing it until the Ruby Weapon dies.
Yes, that's right, it's that easy! Since Hades has a chance of paralyzing the Ruby Weapon, it rarely gets a chance to counterattack against you. And since you're casting KoR three times a round, the damage really adds up! Most likely, the Ruby's Tentacles won't have a chance to hit you, either. However, even if they did, you can earn anywhere from 6000 to 8000 HP back from casting KoR, thanks to the attached HP Absorb materia. This works even when mimicked! However, there are some things you need to be careful of--see the 'Attacks' section for details.
Finally, in the event that you do need to revive a character, it's also advisable that you use an Elixir or other MP-restoring item on the character with W-Summon so that they can re-cast KoR and Hades so as to restart the mimicking process.
Instead of casting Knights of Round and Hades, cast Knights of Round twice and have everyone Mime it. This is a little risky because the Ruby Weapon has more chances to attack you, but you sap it's life very quickly and can kill it in a short amount of time. This strategy also works well for the Emerald Weapon (see above).
# Can't be used when the 'Ruby's Tentacles' are present.
The Ruby Weapon has a host of deadly attacks when it's tentacles aren't around, so it's in your best interest to get it to stick it's hands into the ground so as to reduce it's arsenal. It will use the Ruby Ray and Ruby Fire often, sometimes twice in a row.
It also casts the Ultima spell as a counterattack. This means that if you W-Summon Hades and KoR, and it isn't currently paralyzed, it may use Ultima between the first a second spell cast. There's no real way to defend against this aside from having high life, although the Mystile bracelet has such a high magic evade rate that you can dodge Ultima about 70% of the time.
Generally, you don't have to worry about these two parts of the Ruby Weapon. The damage they inflict varies (less damage as your life gets lower, sort of like the Demi spells), but their ability to sap MP can be a problem if you're forced to stop miming KoR + Hades and revive a character. For that reason, keep plenty of MP-restoring items on hand.
Note that you can take the 'Desert Rose' to a man in Kalm Town on the second floor of the northeastern house to get a free Gold Chocobo.
After arriving at the southern tip of the Westernmost Continent, head north. There is a curving path that leads up to a high plateau. As you go along the curve (even if you are riding a Chocobo) you will be interrupted by Yuffie. The screen switches to that of a plain, and Yuffie runs up, steals your Materia #, and escapes, but not before leaving you with two Shinra guards to contend with! The guards are easily beaten, though. If Yuffie was in your party when she tricked you, you'll have to fight the guards only using two people (in which case Barret will join the party afterwards, and if he's already in your party, then whoever isn't being used will join. Keep in mind that you can rearrange the party in whatever way you'd like afterwards).
Note that if you have the Highwind, you're better off landing near Wutai, then trying to enter the town (you'll still end up in the wilderness area with Yuffie). This is because you won't have to walk as far when the quest is over).
# She can take 48-50 Materia (the number varies), and will steal them in this order of preference: Master Materia, Summon Materia, Independent Materia, Command Materia, Combination Materia and then Magic Materia. This means that it is possible to be left with a few materia after she has escaped. Note that if you're using the Materia Select Game Shark code and you have disabled Materia equipped/in your inventory, she'll steal them and you won't get them back.
At this point, your characters will refuse to board the vehicle you used to get here (Highwind, Tiny Bronco, or Chocobo), insisting that they find Yuffie instead. If you were on a Chocobo when Yuffie stole your Materia, then you'll still be on it when the sequence ends, but you won't be able to board the Highwind, and if you get off the Chocobo, you can't get back on. If you use the 'Start with Gold Chocobo' code, then you can leave the island, but I don't know what happens if you do this sub-quest while riding a real Gold Chocobo. In any case, you can use the Chocobo to cheat and simply ride all the way to Wutai, Yuffie's hometown. If you're not on a Chocobo, you'll have to walk.
From the curving path, head north until you cross a bridge, then go west across a second bridge. Head southeast once you reach the other side; this leads to a north-bound path that runs under the bridge. Follow it and it will lead up to another bridge. Past the bridge, the land becomes flat and grassy. Keep heading north and you'll arrive at Wutai.
When you enter the town, Yuffie will see you and run away. Head to the upper-left corner of town. There's a path here that leads to a large courtyard and a pagoda. Enter the building to your right and walk along the hall until you arrive at a room with a man sleeping inside. Enter it and talk to the man. He is Godo, Yuffie's father. Keep talking to him until he stands up, at which point Yuffie will appear and then be chased away by her father. If you follow Yuffie, you'll find that she has disappeared. Before leaving this area, enter the room next to Godo's and examine the right wall. There is a hidden panel here that will open, revealing a passage. At the end of the passage is a chest containing the Hairpin (a weapon for Red 13). On your way out, go into the room to the left of the entrance. You can come here and spend the night for free, but if you examine the scroll on the left wall, it will lift up, revealing another passage. The chest at the end of this passage has a Magic Shuriken inside it.
Return to town and go into the eatery in the southwest corner of town. The Turks are her! Talk to them all (Elena, Rude, and Reno). When you are finished, go to the Item Shop. Normally, there is a woman standing in front of a treasure chest (preventing you from getting at it) but now she will have moved away. Open the chest and you'll get a MP Absorb materia, but Yuffie will drop down from the ceiling and swipe it from your hands! Leave the shop and go to the southeast edge of town. There's a building here near the entrace. Go inside and examine the folding panel to the left. Hiding behind it is Yuffie, who dashes away as soon as she is discovered. Chase her outside and go to the eatery. If you look at the jar standing outside the eatery, you'll see that it is moving. Approach it and press O to make your friends block all the exits. Then press O three times to make your main character hit the jar until Yuffie jumps out. Seeing that she can't escape, she'll lead your characters to her house.
Meanwhile, two Shinra soldiers run into the eatery to meet with the Turks. After Elena leaves, you'll find your characters in Yuffie's house. When she goes downstairs, follow her. I was sure that I found an item in this room once, but I guess I was mistaken...anyway, don't miss the Turtle's Paradise Flyer that's on the far wall when you go downstairs. Talk to Yuffie. When you can move again, examine the levers in the back room; you can pull the right lever or the left one. It doesn't matter which one you choose, since either one will make a cage drop on top of your allies! Yes, Yuffie has tricked you again. Examine either lever a second time to free your friends, then leave the house.
Return to the courtyard area where the pagoda is and you'll see that you can now enter the building to your left. Climb up the steps and examine the bell to ring it; this will reveal a hidden door. Beyond the door, you'll find Yuffie, who has been taken hostage by none other than Don Corneo, the mohawked pervert that tricked you back in the Wall Market. He has captured Elena as well. Before chasing after him, open the chest to your right to find a Swift Bolt, and open the chest to your left to get an Elixir. Go up the stairs and you'll find yourselves in the altar room back in Godo's house. Three Shinra soldiers appear and attack you, allowing Corneo to escape. Kill the guards (they're the same as the ones that attacked you back on the curving path), then go outside.
Here, you'll run into Rude and Reno. Talk to them, then return to town and head to the northeastern corner of Wutai. There's a path here that leads up into the mountains, where huge Dachao statues have been carved into the rock. Talk to the Turks again as you follow the path, and keep going along the path until it splits. Take the path that goes north. It leads past a huge head to a crossroads. Rude is standing here, blocking the entrace to a cave. If you talk to him, he'll enter the cave. You can't get across the fire-pits yet unless you've gotten the Leviathan Scales from the Junon Underwater Mako Reactor. There's a chest here that has a weapon for Cid in it, too (Dragoon Lance). Talk to Rude again and then exit the cave and head south to find Corneo, who's tied Elena and Yuffie to the face of a Da-chao statue. When you confront him, he summons a boss to attack you.
After the battle, Don Corneo will ask you a question and you have three answers to choose from. Pick any one you like. Corneo threatens to kill Yuffie and Elena, but then Reno and Rude show up and send Corneo to his well-deserved demise. Back at her house, Yuffie will give all the materia she stole back to your characters (including the MP Absorb materia).
You'll find yourself back in the World Map again, but I wouldn't leave just yet if I were you. Return to Wutai and enter the building near Yuffie's house. It's full of cats. Normally, there's nothing you can do here, but now you can climb up the steps in the back to find a secret passage. Walk north (towards the screen), to find a cat and a chest. Inside the chest is a HP Absorb materia. Take it and go back outside.
Now, head back to the courtyard. Enter the pagoda and talk to the man there, Goorikii. He'll inform you that if she wishes, Yuffie can fight by herself against the five guardians of the Pagoda of Five Strong. Choose the top option to accept and the bottom option to decline. After each battle, go up the stairs and talk to the person there, picking the top option to fight them and the bottom option to not fight them. You don't have to kill all the guardians in one go, and if Yuffie is killed in battle, the game won't end, although she'll have zero HP and will need to be revived before she can fight again. Your enemies are:
First Floor: Gorky, a winged creature.
Second Floor: Shake, a penguin-like monster.
Third Floor: Chekhov, a four-armed foe.
Fourth Floor: Staniv, a creature swinging and iron ball.
Fifth Floor: Godo, a three-headed monster. Note that he will automatically attack you when you talk to him.
After Yuffie defeats Godo, he'll give you the 'Summon Leviathan' materia.
Beyond the waterfall is a room made of white stone. If Vincent isn't in your party, then you'll get a message stating his name when you step past the threshold of the room. So, return with Vincent. This time, there's a woman there, Lucresia, and you'll get to see a flashback of Vincent's past. While you don't get anything out of this if you visit only once, you can get Vincent's best weapon and his Level 4 Limit Break Manual if you come here with him in your party again in the second or third disc. Refer to the 'Ultimate Weapons' section for more information on this area.
You can grab items (frogs, big frogs, wasp nests, etc.) by pressing the O button. When you grab a frog for the first time, you get a message informing you that if you press the S button, the entire area will reset, returning all the items to their proper place. However, it also returns you to the very start of the area, no matter how many screens you've worked your way through. If you mess up on an area (you run out of frogs to use for transportation), you can cheat by leaving the area and returning (if it's possible to leave given your current location). But if you're really stuck, you have no choice but to reset the whole level by pressing S. You will keep all items and materia orbs you've collected so far, though. Also, when you hear a frog croaking, look for a place where you can let go of a small frog you might be carrying as it'll be replaced with a big frog.
In the first area, pick up three frogs and go beneath the earth bridge. Put them near the three bags hanging from the trees. Now, quickly take the frogs and press the O button to make them hop into the bags; repeat this until all three bags are full by standing on a bag and pressing O to put a frog into the next bag. When they're all full, hop to the other side of the gap. Once on the other side, go down the slope and carefully inch towards the center of the large snapping plant. Press O to grab the bag (which contains the Supershot ST gun). If you get too close, the plant will close and you'll lose almost all your HP. You can make as many attempts as you want, but it's best to try and not touch the center of the plant in the first place. Continue to the right when you're finished here and Cloud will automatically use the pink vine to reach the other side. Go past the tree and nab the item bag on the hill (there's a Spring Gun Clip inside), and head right to reach the next part of the forest.
In the second area, pick up one frog and approach the pink vine. Choose the top option to leap to the ledge. If you leave the frog on the ledge, it'll be switched with a big frog (or you can just use your small frog). From here, you can put the frog in the bag and leap across to the second (already-full) bag. You'll automatically use the pink vine to jump to the ground. Now, pick up a frog and climb on top of the green ledge to your right; let it go and it will leap into the left bag. If you wait long enough, you'll be sent flying to the ledge above when the frog escapes (you have to use a big one). Once on the ledge, take the wasp nest. Jump back down. Stand near the small snapping plant and press O to release the nest; if you're at the right distance, the nest will fly backward and land in the plant, which will snap it up. Take the yellow materia (Slash-All). Pick up the big frog again. Climb to the green ledge one more time and let the frog jump into the right bag. Jump atop it and wait until you are thrust onto the opposite side of the huge snapping plant. Run to the right to reach the next zone.
In the third area, pick up two frogs, toss them into the bags, and leap across to the pink vine. You'll be lifted into the treetops. Go left, then down the trunk to reach the big bag you saw back in the second area. A Minerva Band is inside. If you go too far down the trunk, you'll jump down to the ground, so return to the treetops after grabbing the bag. If for some reason you can't, just hop back down repeat the last few steps to get across the plant, get into the next screen, and return to the treetops.
Once you're back in the trees, climb to the upmost branch and head right, then make your way towards the broken branch; Cloud will vault across three of the pink vines and land on another branch. Go south to get yet another item bag holding a red materia (Typoon). Now, go back across the vines, and take the lower branch that leads behind the leaves to the ground level (look for a path leading right). Once on the ground, grab a frog. There are two bags to your right; look for a high ledge beneath them, stand on it, and toss the frog into the bag. Then, hop onto it and make your way over to the second bag, then to the ledge with the wasp's nest. Take it and drop to the ground, then approach the snapping plant and press O to release the nest. If you are positioned correctly, you'll toss the nest into the plant, which will close up.
Pick up a small frog and move past the plant. Stand on the left ledge, and let go of the frog; it will jump into the nearby bag. Hop across the bag and onto the ground. Run to the left and grab a frog. Put it in the hollow in the tree next to you and a big frog will jump out. Take it and go back the way you came (put the big frog in the bag, jump to the other side, and wait for it to land by your feet). Grab it again, go to the far right ledge, and release it into the bag. Now, stand on the bag and wait for the frog to escape. Doing this sends you flying across the gap to a cave entrance.
In the cave, walk to the right to find a chest with the Apocalypse sword lying within. Head to the north, then go east to find another chest (there's an Elixir in it). Finally, exit through the opening to your left. You're back outside! Yup, there are no bosses to fight in this area (which is a good thing in case you had a hard time dealing with the snapping plants).