BlueHighwind and me both think that astrology is total bullshit. Let's look, I'm a Capricorn, which is Blue's sign as well. Its a negative sign, which I guess fits. Then its a feminine sign... wait... that's not right! Its colors are dark brown, black, and grey. I don't know about you, but that scheme sucks. No blue anywhere, I'm insulted. Capricorn says that I'm practical, ambitious (damn straight), patient (no true at all), humorous, and reserved. Wait, wait, wait. Read this: "Capricorns have great respect for authority". Btch. HAHAHAHAHAHA!!!!
That's about as far from me as you can get. My sign doesn't get me at all.
Ultimate Weapon/Limit Break Hunt[]
Before we take on the Final Boss, we first must wander the Planet in search of ultimate Limit Breaks and Weapons. Right now, you should have the ultimate Limits of Cid, Yuffie, Vincent, and Red XIII, and also the ultimate weapons of Cloud, Barret, Cait Sith, Vincent, and Yuffie. If you don't, you didn't read carefully enough. Restart the game as a punishment. Aeris does not matter in either case, because... well, we all are very much aware of the reason. Cait Sith doesn't matter in Limit Breaks, since he has no ultimate one, only two very weak wastes of your time. If you want to beat the game, you'll need the ultimate weapons/Limit Breaks of the characters you want to use for the final dungeon. Cloud's ultimate Limit Break is ridiculously over-powered, so you really don't need it if you just want to complete the game. Its also a very long process to procure, so you'll thank me for saving the effort.
First up, go to Rocket Town and talk to the old man who likes staring at the rocket and giving you things if you talk to him long enough. He'll give you a Venus Gospel, Cid Highwind's greatest spear. That's simple enough.
Now go over to Cosmo Canyon and run up to Bugenhagen's observatory. Up there you'll watch a scene in which it becomes clear that the old man is on his way out, and that Red XIII is either incredibly dense of an adept learner of self-delusion. That leads me to the question of whether somebody like this even deserves this treasure. After that, you get the Limited Moon, Red XIII's finest hair decoration.
Over in North Corel, go talk to a man in a hut. He'll give you Barret's most excellent Limit Break, Castrophe. I'm not sure if this item is lost if you fail to save North Corel from that train, but I strongly suspect that it is.
(Edit: If you do fail you get the item while you're still there from the guy standing in a piece of the broken train.)
Finally, we have Tifa. She's the only person whom is lacking both her ultimate Limit Break and weapon. This will actually be the longest question in this section. First off, go to Nibelheim and enter her room. Go over to piano and play: Do-Re-Mi-Ti-La, Do-Re-Mi-So-Fa-Do-Re-Do (or 
, 
, 
, L1 and , L1 and , , , , L1 and , 
, , , ). You should recognize that little ditty as the overworld theme from the times before Meteor blemished our skies. For this, you'll get Final Heaven, Tifa's ultimate Limit Break. Now you can complete the entire combo of attacks once her drive is totally filled.
Now, Tifa's ultimate weapon happens to be at her second home, which is the city of Midgar. However, we can't enter the city without a key. Why can't we parashoot in like we did just a few pages ago? I guess we only had eight parashoots. To get the key, we must look in a totally random place: Bone Village. Pay the digger, then tell him you want good treasure. You only have to dig in one place: below the broken cockpit of the fighter plane. You'll find the Key to Sector 5. Now, fly back over to Midgar and open the door to the city. Nothing much has changed since we left, but now there's no way out of the Sector 5 to Wall Market area. You're stuck in the smelly part of town. First go over to Aeris's Church to see... HER GHOST!! AHHHHHHHHHH!!!! She's come back for revenge! No, she flickers away when you come near. This is just the developers playing jokes on you. Now that that's done, go over to the Wall Market. You should remember that one house marked "ITEM" where a machine gun fired upon you if tried to go inside. The machine is asleep now, so you can grab the item, Tifa's ultimate weapon, the Premium Heart. You can also buy a Sneak Glove from the guy who sold you the batteries, but he sells it for 129,000 gil! It boosts your Stealing power, yes, but by now there isn't really much worth stealing since we already have the best weapons, Limits, and we can replicate items using the W-Item glitch. Move on.
Well, now that we're all ready and prepared, its time to head out to the final battle against Sephiroth. Finally! If you're worried about level, don't be. This dungeon can be completed at levels as low as around 40, which is where you approximately should be at by now. If you feel you need more training, the Northern Crater actually is the best leveling-up zone, so use it.
Northern Crater[]
HERE WE GO!!!!! Welcome to the longest dungeon in the entire game, and the one with the most difficult enemies. Prepare yourself!
Hop down into the cave. The game makes it seem like this is a point of no return, but it isn't. When you're down in the next screen, you can enter the cave to return to the Highwind. But we have no need to do that. You'll come to Chest that contains a Save Crystal. Now I've never actually had it happen myself, but I've seen the horrible Save Crystal glitch. It can ruin your game completely. To be safe, don't use it. You won't really need it anyway. At the entrance, you should watch out for stone enemy called Gargoyle, it has a nasty move named "L4 Death" that will kill any character with a level divisible by four. So don't have any characters that fit that math description. There's also the Dark Dragon, which is a dark dragon. You can Steal Dragon Armlets from it, those are pretty nice. Also if you manipulate it, you can learn Dragon Force, one of the last Enemy Skills. It boosts your stats, that's about it. Dark Dragons are also very nasty foes, so be wary.
Now go down the circular path, hoping over ledges and not being frightened by the times when the path falls. On your second turn around at about 11:55, you'll find a Guard Source. Keep going down until you reach the glowing green bottom. At the next screen, go over to the left and climb up with to find a Power Source. If you run around the back of the wall outside your sight, you'll find a secret invisible HP Absorb Materia. Hop down the ledges and grab the Elixir along your way. Towards the bottom, go right along the dead-end path to find a Magic Source. Now go back up the ledges, then when you're almost at the top (you have to backtrack, one ledge is too high to climb), hop down a path of cliffs that leads to the right. Along the way you'll find a Guard and Mind Source. Now leave this room.
Next room is: more ledges and cliffs, but this time of a purpley color. This room is hard to navigate since your makes it hard to tell where you can go, and where you can't. First hop down to the Chest three levels down to find a Mind Source, then go over to the cave to right, but you have to jump up to the second level then go back down to reach it. In this cave there's nothing but a lone treasure: a Megalixer, nothing big, right? Backtrack to where you found the last source, then go down to a cave. This is will lead you right in, then back out. Jump down, then jump up, up, up, up, then back down. Ignore the cave for now, and instead go for the Chest that contains a Hero Drink. Head inside the cave, and collect treasures all the way up. You'll find a Guard Souce and a Power Source (you have to go through a little hole to reach this one). Leave the cave's top exit and follow your route all the way back down. But instead of jumping up, up, up, go down and hop down to the next screen.
The crossroads
WARNING: This screen is home to the most evil of all the random encounters of FFVII: the Master Tonberry. This little bastard is slow, but has an obsene amount of HP. It has one attack: "Everybody's Grudge", that hits of a huge amount of damage based upon how many enemies the character has killed in the game. Run away, use your best Summon, or whatever, just make it dead before it makes you dead.
Your party is waiting for you here at the crossroads. Depending upon who you send where, you'll get some kind of treasure. The trio of party members you've been using are going left, send everybody else right. Each road leads to the same place and you can go back up to cover every path (and we will). Drake Clawfang had a great idea to use that Save Crystal here, not to Save in, but just for Tents. I think I'll follow his suggestion. When you go down to the left, you'll find another fork. Just send everybody up.
In this room, the music will change and you'll find yourself in an odd little swamp filled with nasty hairs. Follow the path along the bottom of the screen, but go up the penisula to get the Guard Source (man there are a lot of Sources in here). Head back to the entrance of this room, then go up and jump to the stone path in the top left corner of the screen. Cloud will swim down, then pop up on the other side of the swamp. Run over to the Chest to find a Remedy, then leave the room.
In the next swampy area, ignore the Chest right in front of you and instead run all the way up to the Northeast to find a Vaccine. Then go right, and climb up a little brown bluff to find a tiny green Shield Materia. It teaches the spell "Shield" which grants the Shield status, that gives temporary immunity to physical attacks and elemental spells. Sadly, the most powerful enemies in the game have plenty of non-elemental spells, so its use is limited. If you jump down, Cloud will swim until you reach that Chest we had to ignore. Its an Imperial Guard. Run back over to near the entrance, and go right. Grab the Chest which contains a Hero Drink, then run up onto the little branch thing and leave out the right exit. As a warning, this room is also a spawning point for Master Tonberries. And it also spawns the weak enemy Mover. These guys come in threes, but grant huge AP and gil amounts. They're probably some of the best training monsters out there. An enemy named Magic Pot gives even better bonuses, along with lots of EXP, but it wants an Elixir in exchange. In any other game, I'd tell it to "fuck off", but here you have the W-Item Glitch, so you can give away as many Elixirs as you like.
The next room is a pit with a glowing light at the end. Trippy. As you move along the edges, head up to the green part at the top to find an invisible W-Magic Materia. That allows you to Doublecast spells, always fun. Go down to the glowing green center to find a Counter Materia, which allows you counter attacks. Go right and leave out the little cave. The next room is very windy, but is nice and easy too. Just grab the Luck Source then head up through the door. You can go down to find your party, but that's only for whimps.
Wow, this place just keeps going on, doesn't it?
This next room is far more rocky and cave-ish. There's lots of little black ground divided by the glow green of Mako. Run up to the top right and open the Chest for a Turbo Ether. Then hop to the left to find a Mega All Materia. This makes all physical and magic attacks strike every enemy once, twice, thrice, etc based on the Materia level. Not really that great. The left area yeilds a Speed Source in the Chest. Return to where you found the Turbo Ether and begin the zig-zag treck up the cliffs. Along the way you should find an X-Potion.
The next room is much like the last one, rocky. Go alone the left ledge-path and then run behind to find a Vaccine. Go down to find a Turbo Ether in the center section. Climb up the pillar to reach the top, then run up to yet another room. Here, go left to find an X-Potion, then jump up to find a Remedy. Now head up the floating platforms to find that we've returned all the way to the second fork from so long ago. Go up to head back to the crossroads and this time go right. Just one more road to take!
Are we back in the City of the Ancients? You'll find yourself on a spiral downwards in front of a massive underworld of darkness. Guess we're in Hell now. That's fitting, because I'm sure I'm as tired walkthroughing this section as you are of playing it. At the bottom, agree to go down, then drop down to find another one of my beloved Mystiles. Head down this spiral and grab the green Elixir bag on your way. At the bottom, start going up and grab the Speed Source chest. Go directly down from here to find a Tetra Elemental Accesory that doesn't give four elements like you would think. Just a mere stat increase. Go around the little horn-thing and head North to find a Megalixer before the fires. Sadly, that horrible sight is our next area. There is no treasure in this room, just go down the spine of some lost monster and leave out into the windy room.
This time, instead of leaving, run down to the bottom to hear a party member's voice. Well, that's it for this page. It must end here due to the zoning laws of the State of New Jersey, otherwise I'd have to go to city law and get a permit.