Man I hope I remember, it's been about 8-9 years.
At some point during World 3, after the Void had swallowed up a bunch of towns, I had a disc error or something happened, and when I reloaded the game, I noticed that the towns were back. I stopped in to a bunch of them and I ended up back in Tycoon Castle.
I still had about 3 or 4 characters (I forget exactly), so I was pretty creeped out to see the Waltz was still going on, without Faris and/or Reina in attendance. The game recognized they were in my party, but... the dance was going on anyway.
At some point I remember I triggered something and that first part of World 3 where I didn't have Reina and I had to go do stuff anyway... and that was still weird because I still had the stuff from doing it before, but I had to do it again... it was just total timefuck.
Last thing I remember was beating the Pyramid again and the boat coming, but I didn't fight the demon in the forest and so I didn't Reina back and I never found the boat.
To this day, I've never seen anything like it as glitches go.