FINAL FANTASY VIII - Omega Weapon dies twice
ファイナルファンタジーVIII-オメガウェポンは二度死ぬ
Funny to see Omega Weapon with its death animation attacking you. If you decide to flee instead of killing it a second time, you will receive the item it drops (you will be able to fight Omega again).
Phoenix appears if you use the Phoenix Pinion item and the damage he does is calculated via the normal GF damage formula. Additionally, he revives every KO'd party member with 12.5% of their Max HP.
If you have already summoned Phoenix at least once and if the whole party is KO'd, there is a 65/256 or 25.4% chance that Phoenix is summoned.