I'd love to give you details, but the battle was over two hours long, so I can't give you a real description of what exactly happened.

Basically, though, I entered the battle with very low HP. I put Rinoa (who had Auto haste) in Angel Wing mode. Then I began using Heroes. It's fortunate that Omega uses Level 5 death on his first turn because that gave me time to use a hero on everyone. Now I am invincible and I had Quistis use Acid so that Omega gets vit 0. It is imperitive that you use acid, because if you don't you will probably run out of heroes, as the battle will take three times as long. From here on out, I had Squall use Renzokuken (1000-2500 damage tops.) and I had Quistis use Homing Laser (2100-9999 damage, although I only ever saw 9999 a few times)

I repeat that until invincibility wears off, and then I have to put it back on. Sound easy? Well, it's not. If you don't act fast, you're dead. Reviving dead party members isn't all that easy in this battle, because you have to worry about when each characters invincibility will wear off.

The very second two characters die you are to use a phoenix pinion immediately. It heals omega for about 2,500 HP, but it revives everyone and when your party gets wiped out phoenix will save you at least once.

There will be a lot of close calls in this battle. If you don't act with both intelligence and speed at these critical times the battle ends and you die. At one point in time I was certain that I was about to die. Squall and Quistis were both dead, and Rinoas invincibility had worn off. She, however, was uncontrollable. Luckily, Angelo came out of nowhere and revived Squall. The Omega punches rinoa for 5,000 damage. I used a phoenix pinion. As soon as I did that I realized I had made a Gigantic mistake. If I use this phoenix pinion, and Omegas next move is anything other than a physical attack, gravija, or light pillar, I have effectively wasted my phoenix pinion. I got lucky though, and Omega didn't kill everyone. I was able to put my characters back into invincibility status before he could wipe me out.

In this battle you have to predict when your invincibility is going to run out. Sometimes, you have to refrain from attacking. What may seem like the perfect opportunity to deal some extra damage to Omega may actually take you to the "Game Over" screen. You have to think about how long ago Omega last attacked and how long ago you last used a hero/holy war. If you put yourself in invincibility mode a few minutes ago, and Omegas last attack was 30 seconds ago you had better not be attacking.

One Tactic that I that I planned to use, but only ended up using once because it's moderately difficult to pull off (and I was running out of phoenix downs) was using the return damage ability in conjunction with Omegas Terra Break. If Omegas next attack is Terra Break, and you no longer are in invincibility status, use a Hero on everyone but Squall, and let Squall take the damage from Terra break. It'll kill him while everyone else stays alive. Omega will take 1/4 of the damage dealt to squall, which should be close to 9999, if not more. (For me it dealt roughly 9,500 damage) you can then revive squall, use a hero on him, and commence attacking. It's risky, but it makes good use of your most worthless attacker in this battle.

At some point in timein this battle Gilgamesh came and helped me. He used masamune, dealing 5,000+ damage to Omega, which is odd since I have never once seen masamune used in the 20 or so times I have played this game, yet it gets used twice in a row in this challenge.

Near the end of the battle I made what I thought to be a costly mistake. It seemed like it was about time for invincibility to wear off, and Omega hadn't attacked in a while. I had Quistis use homing laser, which was fine, but then I had Squall use Renzokuken. That was my mistake. (or so I thought) I didn't leave a character open to use a hero when invincibility wore off. Squall then performed an 8 hit renzokuken followed by a blasting zone, and much to my surprise, Omega was dead. I found it moderately amusing that my worst attacker deals the finishing blow because I made a mistake.

And now, I pose a question to all of you that thought this challenge was "Impossible". I have one battle left. Do you still think this is going to be "impossible"?