Final Fantasy X is a video game in the well known JRPG series from Square Enix.
GAMEPLAY HINTS
Defeating Tonberries
Put them to sleep.
If you cannot get the items to customize the AP Weapons (Triple AP, Triple Overdrive and Overdrive -> AP), it is possible to win them from Ultima Buster. It is very rare, however it does happen. To easily defeat Ultima Buster, use Anima. Cast Protect and Haste, and attack the head until it dies. Use magic on the body, and when you get Overdrive, use it. It will destroy the arms. Then launch a flurry of attacks on the body. It takes a lot longer in the North American version of the game to win this way than it does in the PAL/International version. Oblivion hits for up to 1,599,984 damage in the PAL/International version, but only up to 99,999 in the North American version. Defeating Ultima Weapon
You can bribe Ultima weapon for 1,200,000 gil. He will give you a lot of the rarest item in the game.
Defeating Warrior Monks
To defeat Warrior Monks in one shot at Bevelle, switch to Lulu and use Thundaga. For the machines, use Wakka's Dark Attack.
Defeating Yu Yevon
Use the Zombie Attack on Yu Yevon. After every attack, he will cast Curaga on himself and take extra damage because of his Zombie status.
Use the Zombie Attack on Yu Yevon. If it hits, the next time it is your turn to use a Phoenix Down on him for an instant kill.
When fighting Yu Yevon, use Reflect or Star Curtain on some of your party members. Although you automatically have Auto-Life, it is a good idea to keep all of your members' health up. The higher your health, the more damage inflicted to Yu Yevon. Another good tactic is to get Tidus' Overdrive up and use Slice And Dice on Yu Yevon.