One Final Party or Two?

So.....I've played this game a lot

Two scenarios have played out during the Bizzaro Sephiroth battle

1. I get to pick 2 parties (the most common)
2. I only get 1

Under what conditions do these scenarios occur?

i believe you get the 2 party when your guys are above lvl 50. but that always confused me

Defeat JENOVA fast and slow and you will see.

12+ means 1
6+ means 2
Lower means 3

But yes, Galuf is right. It also has a bit to do with your Level a bit and your characters.

There's sooooo many Jenova's to fight but.....I'm gonna assume it comes down to that ball of tentacled flesh that calls itself SYNTHESIS.

I normally blast the thing with KOTR (its exactly how I dispatch diamond weapon, if those things even think about giving me a countdown then.....bam! Its Authurian Time!)

I think last time I tried to defeat Jenova a different way.

Methinks however I shall stick to kicking its ass in one turn.