Sure, if you've got enough magic to buff his stats to 255 and absorb all elements and haste/regen/shell/protect
It would take about 7-8 Perfect renzokuken's and lionhearts to do it.
Yes.
Totally in one hit!
Totally especially if it uses the one terra move.
Yeah especially if it uses terra break!
Yes for Squall it is.
They can fight each other in Dissidea, and can defeat each other.
Emerald Weapon is the hardest boss you can battle in Final Fantasy 7, so therefore Emerald Weapon is superior to Omega Weapon. Omega weapon is pretty pathetic in the original releases of Final Fantasy X, with only roughly 100,000 HP while Emerald Weapon has 1 million HP. Even in the European release of FFX, Omega Weapon still only has 1 million HP while Emerald Weapon has Aire Tam Storm, which is really mean as it does more damage when you have more materia, which can really be an insane attack. Also, 1 million HP.
Omega weapon is the strongest of all the weapon monsters I believe.
defeat winona first
Emerald Weapon
in the battle fortress
Totally.