Omega is one of the two original optional superbosses in Final Fantasy V. It is a machine found in the Interdimensional Rift directly after a save point. Multiple Omegas can also be found in a room inside the Sealed Temple (GBA, mobile and Steam versions only). Omega is visible on the field, so it can be avoided. To get by it the player must move only when it isn't moving, and mainly move along the edges of the ledge.
Omega has two special attacks: Rocket Punch and Circle (also called Encircle). Rocket Punch halves a character's HP and inflicts Confuse. Rocket Punch can be used consecutively, which will negate the effects of confusion if it happens to hit the same character twice.
Circle wipes out the target for the duration of the battle. A victim of Circle cannot be revived by a Phoenix Down or Raise. Omega starts the battle with Reflect set up, and this effect cannot be dispelled.
Omega's Atomic Ray and Flamethrower are Fire-elemental, and thus can be absorbed with correct equipment. Omega inflicts the Sap status to the party, sapping their HP, and Confusion. Omega's Earthquake attack misses on floating targets.
The basic idea is to equip a Fire Ring to each party member to absorb Omega's Fire-based attacks. It is advised to have at least one Bard who knows Romeo's Ballad, since Omega is not immune to Stop, although it is not stopped for long.
A character who knows Thundaga Sword and Rapid Fire should be able to take it down in one or two shots as long as they avoid attacking while Omega is charging up, in case it counters with Encircle. Three Bards and a Mystic Knight with Thundara/Thundaga Sword makes for an easy fight. With the slowest battle speed with using Romeo's Ballad every time Omega comes out of Stop, he'll be permanently stopped; this can be made easier with applying Haste to the party.
If the party summons Carbuncle to counter Omega's Auto-Reflect and avoid Atomic Ray, they can have a Bard sing Romeo's Ballad constantly and Dualcast Thundaga onto the party, and, if possible, equip Masamune to the Summoner, and Hermes Sandals on the Bard and Black Mage. With this strategy, Omega should go down in three turns.
Another strategy is for each character to equip a Fire Ring and be affected with the Float status. One character should have Time Magic Level 6 and Zeninage with the Masamune equipped. The other two should have Mix and Zeninage and the final character should have White Magic Level 6 and Zeninage. The party should have six Turtle Shells, six Antidotes, and 60,000 gil.
As the first thing the player should cast Hastega and not attack until having mixed a Turtle Shell and Antidote together six times, applying the mix each time to Omega. This reduces Omega's Defense to where the party can really hurt it. One should never recast Haste and not recast Float unless there are no more characters with the Float status left.
The party should attack with Zeninage, dealing about 9000 damage each time. The player should only hit once at a time, wait for the counterattack, heal, and then hit again with Zeninage. The final character in the party should repeatedly use Curaga on all characters, as an Sap will likely spring in almost every one of the characters throughout the fight. With two Mix abilities there are three characters who can cast Arise in the party (a Phoenix Down mixed with Potion makes the Arise spell).
Fire Rings absorb Omega's Fire attacks, and the Float status, assuming at least one character stays alive throughout the entire fight, will ensure the party is not entirely wiped out with Earthquake. Equipping Ribbons on as many characters as possible is beneficial to avoid some of Omega's status ailments, but it will not protect against the Confusion inflicted by Rocket Punch. To prevent his Confusion, the player must equip either the Prism Dress, Genji Armor, or Bone Mail. Using Dragon's Kiss (via Mix) on the party can also be recommended, as it'll grant the target immunity to Encircle.
Omega appears as an enemy.
Omega (capital: Ω, lowercase: ω; Greek Ωμέγα) is the 24th and last letter of the Greek alphabet. It commonly represents the end or a limit of something, such as the concept of "alpha and omega".