Oddity, in the Nibelheim flashback, in arrange mode, when Cloud and Sephiroth fight the dragon, you can lose that fight. I just kept hitting 'attack,' and the dragon eventually killed Sephiroth, who froze in place as he has no death animation, I got 'Defeated...' and the normal party death music played. The battle ended, and I was back in Kalm, and the cutscene continued with Cloud talking about how Sephiroths strength is unreal despite just telling how he got jobbed out by a random dragon in the road.