The next 4 part are quite hard to play actually :). Lot of glitches!
So you start after the death of Angeal, it seems that Lazard wasn't quite right, so he moved out.
You're in holidays, and some random copy of Genesis attacking you on the Beach! (Crap!!!).
After that you're going to Junon, cuz it's under attack of some Genesis copies. And unfortunately, Hollande is interogated there, so no wonder.
After few scenes, you're meeting a very old friend (so far the Meca Scorp is the 1st boss of Final Fantasy VII).
After killing it, you just can see Hollander escaping, and Sephiroth coming back.