Final Fantasy X Cheats

Get Anima
First you have to go get the 5 destruction shpere treasures. Then go to Zanarkand Dome and do the new puzzle then go and get that destruction sphere and put it in the screen shere slot. Go to the Baaj temple beat Gengeoso and go in the door under water. Go up to the 6 statues then it will open. If you don't have them all than which ever statue/statues aren't lit go back to the temple you missed. The order is the top right Besaid, the middle right is Djose, the bottom right is Killika, the top left is Bevelle the middle left is Macalinia, and the bottom left one is Zanarkand.

Magus Sisters
To get the Magus Sisters, you must go to the Requiem Temple which is located to the right of the entrance of the Calm Lands, (You will need a chocobo to access it) Once you enter the temple you will meet the lady summoner you met on the Djose Highroad. She will challenge you to fight her summons. (You need to have all the summons from Valefor to Yojimbo to obtain Magus Sisters). After you beat Bahamut, she will award you the Flower Scepter which is one of the two items to you need open the chamber of the fayth. The other item is the Blossom Crown. (This can be obtained by catching all the monsters in Mt. Gagazet for the battle arena, then return to the battle arena owner and he will award you the Blossom Crown) After you have obtained these two items go to the Requiem Temple and behind the summoner will be the chamber of the fayth. Use the two items and you will finally obtain the best summon in the game, (in some peoples opinions) The Magus Sisters.

How to beat evrae
It's fairly simple,just level up your auron until he can do at least 4,500 points of damage(took me about 2 hours) and when you battle him make sure you have your tidus use slow and have whoever use reflect so he can't use haste on himself (at about 10,000 hp). And after that just have your big hitters finish him off!

Hidden Areas
Use the following coordinates on the airship world map, then press X when you've found the spot. These coordinates are approximates, so move the cursor around a little and press X repeatedly to find the hidden areas:

Baaj Temple: X:14 Y:60 (find Lulu's Onion Knight and Anima here)
Sanubia Desert: X:15 Y:41 (find Tidus's Ascalon)
Omega Ruins: X:74 Y:36 (battle Ultima Weapon, steal items, and find spheres)
Besaid Falls: X:31 Y:73 (find Kihmari's Dragoon Lance)
Mi-I'hen Ruins: X:34 Y:58 (find Rikku's Sonar here)
Battle Site: X:42 Y:57 (find Lulu's Phantom Bangle here)

Yuna
Yuna's Overdrive lets her summon an aeon with its Overdrive gauge completely filled. She is not able to learn specific techniques like the other characters.

Auron
Collect the Jecht, Auron, and Braska spheres that are hidden throughout Spira to teach Auron new techniques.

Dragon Fang (available from start)
Shooting Star (find one sphere)
Banishing Blade (find three spheres)
Tornado (find all 10 spheres)

Locations
Jecht Sphere: Macalania Forest (after Spherimorph fight)
Jecht Sphere: Besaid Village (next to temple)
Jecht Sphere: S.S. Liki (on the bridge in Besaid)
Jecht Sphere: Luca Stadium (basement level A)
Jecht Sphere: Mi-ihen Highroad (southern Old Road)
Auron's Sphere: Mushroom Rock Road (cliff)
Jecht Sphere: Moonflow (South Wharf)
Jecht Sphere: Thunder Plains (southern part)
Jecht Sphere: Macalania Woods (southern area)
Braska's Sphere: Mt. Gagazet (Mountain Trail)

Kihmari
Kihmari can learn new techniques from his enemies by using the Lancet ability. Try this move on every fiend you meet (or switch Kihmari in whenever one of the following attacks is used on you) to build up his repertoire of Overdrives. Be sure to learn his most powerful move, Nova, from the Omega Weapon.

Jump
Fire Breath
Seed Cannon
Self-Destruct
Thrust Kick
Stone Breath
Aqua Breath
Doom
White Wind
Bad Breath
Mighty Guard
Nova

Wakka
Wakka is a Blitzball player, so it's only fitting that his new techniques are unlocked by playing Blitzball. By winning in the League and Tournaments you can expand your repertoire to the following overdrives:

Element Reels (available from start)
Attack Reels
Status Reels
Aurochs Reels

Lulu
Lulu's Fury Overdrive allows her to cast any black magic spell multiple times in a row without losing MP. Rotate the right analog stick clockwise as fast as you can to increase the number of attacks.

Rikku
Rikku's Overdrive ability allows her to mix two items together for devastating attacks or helpful potions.