Finally, we have arrived at the game proper.
I must say, as someone who has played this game countless times, I really appreciate the scenes they added in the Organization XIII chambers for Final Mix.
In the original release, most of the Organization members hardly get any screen time before Sora starts to slaughter them one-by-one. While this is still true even with these scenes, they help to introduce players to these characters so that there's something resembling a buildup to the boss fights against them.
It's not much, but it's a needed addition that goes a slight way towards establishing our villians.