The Junction system was okay to meh. It wasn't fatal to the game. But Squall's softie softie kind of expression kinda threw off the main idea of his character...
Here's the Ultima Weapon help! ((I found this on the net)):
Cloud
After you fight Ultima Weapon in Mideel travel to the water basin by Junon.Bump into him with the Hughwind to initiate the fight.Afterwards, travel around the world map to find Ultima flying around.Wait until he stops and bump into him to fight.Keep doing this for about four times until he stops at Cosmo Canyon.Defeat him and you'll get the Ultima Weapon.
Tifa
Go to bone village and look in or around the place where you found the Lunar Harp(a few feet away from the entrance of the sleeping forest, by a black patch in the ground).Then check the treasure box to receive the key to sector five.Now go to Midgar and enter the wall market.Go into the item shop that has the laser shooting at you.Use the key and you'll get the Premium Heart.
Barret
On your second trip to Midgar on disc 2 have Barret in your party.When you ascend the staircase after you've defeated Proud Clod you'll find a treasure box that contains the Missing Score.You have to have Barret in your party or the box won't be there.
Cait Sith
On your second trip to Midgar on disc 2 go to the Shinra headquarters and go to the 64th floor.Check the top row of lockers to find the HP Shout.You must have Cait Sith in your party, though.
Aeris
In the temple of the ancients, go to the fourth room to find the Princess Guard.
Cid
After the rocket collides with Meteor, talk to the guy outside the shop to receive the Venus Gospel.
Vincent
Acquire a gold chocobo and head to a water basin by Nibelheim.Go into the waterfall and Vincent will talk to Lucrecia.Leave and come back in a few minutes. Check the light Lucrecia wasstanding by to receive the Death Penalty
Red 13
On the second disc go to Cosmo Canyon.You must have Red13 in your party.Go to Bugenhagen's house and you'll find him lying on the couch.He'll give Red 13 the Limited Moon.
Yuffie
When you get the submarine travel along the ocean walls to find a gap in between the rocks.You'll find the Sunken Gelnika.Go inside and walk into the first door.In the room you'll find some treasure boxes.Go to the top left corner to a box you can't see.Kepp pressing the OK button to open the hidden
box.You'll get the Conformer.
And here's Ultimate Breaks and Six Flyers:
Cloud
Go to the battle arena at Gold Saucer and get 32000 battle points.Then check the machines to receive the Omnislash.
Tifa
When you first go to Kalm on the first disc go to Tifa's house during Clouds flashback.Play her piano.Then, go back to Nibelheim on disc 2 and play her piano.Select the option "I forget".Then press these buttons:
Do Re Mi Ti La Do Re Mi So Fa Do Re Do
You'll receive one gil and The Final Heaven.You must have Tifa in your party, though.
Aeris
Go to the cave near Junon that you can only get to with the highwind or a blue river chocobo.Talk to the sleeping man.If the number of battles you fought where the last two digits are equal you'll receive some Mythril.Now go to the Weapon Seller east of Gongaga and talk to him.Now take the small box on top to receive the Great Gospel.
Barret
After the execution go to North Corel and speak with the lady in the tent to receive the Catastrophe.
Red 13
Go to the Shinra Mansion in Nibelheim in disc 2.Check the safe on the second floor and enter this combination:
Right 36 Left10 Right 59 Right 97
And hit the OK button.You'll fight a boss called Loss Number.Use fire attacks on him so he morphs into an easier boss.Defeat him and you'll get the Cosmo Memory.
Cid
In the Sunken Gelnika check the crashed helicopter in the cargo room to receieve the Highwind.
Vincent
Follow the same procedure that you did to get the Death Penalty.When you check the light Lucrecia was standing by, you'll receive the Chaos.
Yuffie
Go to the westernmost island on the world map on disc 2.When you arrive Yuffie will stop you and you'll fight some Shinra troops.It seems that Yuffie has stolen your materia.Now go to Wutai, a Japanese like town at the end of the island.Talk to the townspeople and head for northern Wutai.There, you'll find a five story pagoda,a gong, and a house.Go into the house and you'll find Lord Godo asleep on his bed.Keep talking to him and Yuffie will pop up.
Afterwards, go to southern Wutai and go into the building on the right.Talk to the Turks and leave.Go to the materia shop and check the treasure chest to receive the MP Absorb materia.But Yuffie steals it.Now go
to the house right in front of the entrance and check the blinds.It's Yuffie hiding.Now go to the pot outside the building the Turks were in.Check the pot and Yuffie will come out.You've got the bridges guarded so Yuffie can't escape.
She'll lead you to her house and tell you to pull a lever.It doesn't matter which one.When your friends are trapped just pull the lever again to release them.Now go to northern Wutai and bang the gong.Go into the hidden passageway and you'll find Don Corneo.Follow him, but don't forget the treasure chests.Outside you will bump into Rude and Reno.Follow them to the Da-Chao Mountains.First, go to the save point and get Barret in your party if you don't have him now.Switch to his level one limit breaks.Trust me.When you get to the mountains you find that Corneo has tied Yuffie and Elena to
the mountainside.Now you'll engage in a battle.Have Barret use his Mindblow to knock out 100 MP from Rapps so he doesn't use his Aero3 attack.After you get your materia back save your game and give Yuffie your strongest materia.Now go to northern Wutai and enter the Pagoda.Defeat the
Five Mighty Gods and you'll get the All Creation.Don't worry, the Gods are easy to defeat.
Cait Sith
Fight enough battles using the Dice limit break and you'll get the Slots.
The Six Flyers
In Wutai, Turtles Paradise is having a contest to see who can locate all of the six flyers.
1: At Shinra headquarters check around the lobby.
2: In Midgar, go to the house below Aeris's.Go upstairs and look at the
wall.
3: In Gold Saucer check the Ghost Hotels lobby.
4:In Yuffies basement in Wutai.
5: The Weapon Seller at Cosmo Canyon.
6: The Shildra Inn at Cosmo Canyon.
After you find all of the six flyers go back to Turtles Paradise in Wutai( the place with a big pot outside )to receive your prizes.
Hope it helps!