Each character has a specific ultimate weapon that can be acquired by using the Celestial Mirror. When the weapon is first found, it is equipped with ‘No AP&; ability. To remove this ability and empower the weapon to it&;s full potential, you need to find 2 specific event items for each character. Upon doing so, you must then return to the Macalania Woods and use the Celestial Mirror to power up the weapon at the large spherical crystal high amid the treetops. Below is the description on how to get the weapon.
Get Tidus Ultimate Weapon Caladbolg
To acquire Tidus&;s ultimate weapon, Caladbolg, you must race and defeat Chocobo trainer at Calm Lands by getting as many balloons as you can until your time is 0.0.0. Each balloon will minus 3 second from your total time. Watch out also for the flying birds that attack you from above. After winning the race, walk to the upper northwest section of the Calm Lands. The guard blocking the narrow pathway down into the gorge will have left his post, allowing you to pass. Tidus will then be able to use the Celestial Mirror to acquire Caladbolg.
Caladbolg Power Up Item
Item #1 (Sun Crest)
Can be found at Zanarkand dome when you fight Yunalesca.
Item #2 (Sun Sigil)
Can be obtained after you beat the Chocobo trainer at Calm Land with time 0.0.0
Get Yuna Ultimate Weapon Nirvana
To acquire Yuna&;s ultimate weapon, Nirvana, you must capture all 9 type of fiends of the Calm Land region. After collecting them all, return to the monster arena owner. He will produce a treasure chest containing the weapon.
Nirvana Power Up Item
Item #1 (Moon Crest)
Can be found at the beach of Besaid Isle.
Item #2 (Moon Sigil)
Can be obtained after you defeat every aeons at Remiem Temple.
Get Auron Ultimate Weapon Masamune
To acquire Auron&;s ultimate weapon, Masamune, you must acquire the Rusty Sword, found on the eastern cliff of the Cavern of the Stolen Fayth in the Calm Lands. Take the Rusty Sword to the statue of Lord Mi& then on Mushroom Rock road. Clasko previously prevented access to this area. Place the Rusty Sword before the statute reveal a glyph. Touch the glyph to reveal the Masamune&;s secret location.
Masamune Power Up item
Item #1 (Mars Crest)
Can be found South of the Oldroad at Mi&;ihen Highroad.
Item #1 (Mars Sigil)
Capture 10 monsters in 10 different species in 10 different regions.
Get Wakka Ultimate Weapon World Champion
To acquire Wakka&;s ultimate weapon, World Champion, you must have the Celestial mirror and talk to the bartender in the Luca CafÃ½. If she refuses to turn it over, it&;s because you have been neglecting to play Blitz Ball.
World Champion Power Up item
Item #1 (Jupiter Crest)
Can be found inside the locker in the Aurochs&; locker room at Luca.
Item #1 (Jupiter Sigil)
Offered as a prize in Blitz ball League matches, but only after Wakka has the Attack Reels, Statue Reels, and Aurochs Reeels.
Get Kimahri Ultimate Weapon Spirit Lance
To acquire Kimahri&;s ultimate weapon, Spirit lance, you must activated three of the Cactuar Tombstones on the Thunder Plains. Stand at any stone and press Square button to see the spirit of Cactuar released. After activating three stones, find the cactuar ghost flying just above the ground at Thunder Plains – south, and follow it to a small, ruined lightning tower on the right side. Press Square button to send bolt of lightning to the tower, revealing a treasure chest holding the Spirit Lance.
Spirit Lance Power Up item
Item #1 (Saturn Crest)
Can be found at Mt. Gagazet, columns after Seymour battle.
Item #1 (Saturn Sigil)
Capture all blue butterflies without touching any red ones in the butterfly hunt game in Macalania Woods.
Get Lulu Ultimate Weapon Union Knight
To acquire Lulu&;s ultimate weapon, Union Knight, return to Baaj Temple (where Tidus first woke up) and dive underwater. Swim towards the doors to the north to fight Geosgaeno. A strategy for this boss is detailed below, in the section on obtaining the aeon Anima. After defeating Geosgaeno, search the southern part of the circular underwater area and look for a treasure chest containing the weapon.
Union Knight Power Up item
Item #1 (Venus Crest)
Can be found at Farplane at Guadosalam.
Item #1 (Venus Sigil)
You have to evade the lightning on the Thunder Plains 200 consecutive times without being hit. Return to the front of the Travel Agency and open the chest there.
Get Rikku Ultimate Weapon Godhand
To acquire Rikku&;s ultimate weapon, Godhand, you must input the airship password GODHAND to open a secret location at Mushroom Rock. Move north the end of this ravine, and use the Celestial Mirror on the symbol embedded in the rock face.
Godhand Power Up item
Item #1 (Mercury Crest)
Can be found in a sand whirlpool in Sanubia Desert.
Item #1 (Mercury Sigil)
Can be obtained after you complete the Village of the Cactuars mini-game and look for a treasure chest in the sandstorm area.
Seymour (Second Battle)
To fight Seymour in second battle with his deformed form, just make sure Tidus and Auron have enough HP and Attack power. When the battle begins, press Left for Trigger Command and choose the Boss (not Boss 1). Make sure your party member is Tidus, Auron, and Yuna. Now, if it is Tidus turn, use his Special move 'Attack Up'. Now let Yuna summon Ifrit or Bahamut. Use Bahamut or Ifrit second attack (Special Attack) and attack Boss 1 (not Seymour). If Bahamut, it will become more easy. The Boss 1 will absorb HP from Seymour from 4000 to 1000, if it get killed. Keep killing the creatures using Bahamut special attack so it attack both. If Bahamut get killed, get someone use physical attack against both of them.
Press L1+L2+R1+R2+SELECT+START button together about 1-2 second. You can only restart the game if the Pause can be active.
"Sphere" is a new Final Fantasy system which is similar to Junction system in Final Fantasy VIII, plus it is more easy to use. To learn a new ability, you need a S.Level, which is used to move the cursor from place to place. The S.Level works same as EXP (Experience Point) from the previous Final Fantasy series. S.Level used to moved the cursor and set an item to learn a new ability or make you stronger or make your defense rose. This can be make in Sphere. Rikku will give you this item after you get onboard with her on the ship. To open Sphere, select the first option. Use R1 or L1 to scroll the characters. Use Select button to minimize or maximize the Sphere. Now, move the cursor by pressing O button. Move it to the place where there is an icon with sword or defense on it or any image by selecting the first option. Now, place it anywhere. The best place is between 2,3 and 4 icon cause you can learn much ability with only a few S.Level. After you have choose the destination!
n (only can be place on the highlights place) press O again and now select the second option and choose any of the item which is in white (gray is not suitable) and press O again, it will place the item automatically. So, repeat the process until you can't put anymore items on it. Sometimes you need a special item, which is write Lv.1, Lv.2 or Lv.3 at the end of the item name. This item used to open a new path in your Sphere, so you can learn anew technique or ability even makes you stronger.
Switch Party Members
When you in-battle with 4 to 7 characters, you can switch them when you have to or must switch it. To switch it, just press L1 when your turn. Now choose the character at the list given by pressing Up or Down button. Confirm it by pressing O button. You can switch them as many times as you like. To skip the character, just press Triangle button.
Funny Scene in Battle
Just knock out 1 or 2 of your character in battle. Make sure you have Yuna in your party. Now with 2 of them is in KO status, use Yuna's summon magic and summon any kind of summon monsters you would like to use. The first funny scene appears, which the dead characters will run while they are in KO status. Now let the summon get killed or killed it with his own attack. When the summon monster is dead or KO, all your party member with gather together again, here another funny scene appear, the two of your KO characters will get back into battle and they will stand like always but they will get back to die. This also works when your character is in Sleep status.
Rikku's Steal Ability
Rikku are the only character that can steal item from the enemy. You can also use Rikku when you encounter a treasure box in the battle. You can also let all your character learn this ability by fill up all the Sphere from the character to Rikku's Sphere site, then you can also learn the technique. All your characters also can learn White or Black Magic from both Yuna and Lulu.
Buy a Final Fantasy X Movie and Soundtrack
There are another cool things in this game where you can buy back the movie you have watch from the beginning of the game until the last movie you have watch. Soundtrack also available from the beginning of the game until the last soundtrack you have heard. Each Movie cost 500Gil and each Soundtrack cost 200Gil. You can buy this at the big town where you first meet Seymour. Find the cinema and buy the movie from the boy on the left and soundtrack from the boy on the right.