Omega Weapon (Final Fantasy X)

Omega Weapon is an optional boss in Final Fantasy X. Omega was once a monk of Yevon 700 years prior to Yuna's Pilgrimage, but was branded a traitor and banished to a group of islands off Spira's mainland. Here in the ruins he made his home, Omega's hatred for Yevon grew so intense that when he died, he was transformed into a fearsome monster. His power was so great, it spawned the lesser Ultima Weapon in the process.

During the battle with Omega, Kimahri can learn his best Ronso Rage Overdrive: Nova (sometimes called Supernova). Omega and Nemesis of the Monster Arena are the only enemies in the game where this skill can be obtained.

Omega's normal physical attack will cause around 4,000 HP damage, and he will also inflict a variety of status effects such as Break and Confuse. Core Energy is an upgraded version of Ultima's and will cause between 4,500 and 9,999 HP to one character; and Shimmering Rain also returns and will hit the whole party for around 2,500 damage. His ultimate attack is Nova, which will inflict around 4,500 damage to all, but this can be reduced with Shell.

Shell, Haste and Protect are very important for this battle, as Omega cannot be inflicted with debilitating effects such as Delay, Slow or Auron's Breaks. The special skill Quick Hit is also very useful to get more turns against Omega's high agility stat.

Version Changes
In the original North American and Japanese versions, Omega was a rather disappointing boss, having only 99,999 HP, not much of a greater challenge over Ultima (especially considering the new Break Damage Limit ability for FFX). Perhaps wisely, he was given an upgrade for the International and PAL/European versions, now having 999,999 HP.