(more Utena spoilers) The last of the Black Rose duels reveals interesting details about the powers of Anthy and Akio. Apparently, Akio can rewrite memories and stop time. Anthy can appear to look like other people. For the stop time part, note that Tokiko returns, and she is looking pretty old, but everyone else looks the same. Also, Akio says that Nemuro/Mikage's memories and his desire and regrets caused time to stop. Also, note that in Mikage's memories, Mamiya looked like a male Anthy, not how he really looked, and how Miki and Utena forgot the whole thing about Nemuro Memorial Hall, and how suddenly, no one was hurt in the fire, instead of the hundred duelists dying in the first version.

Although, I wonder why the hundred duelists had to die. Also, it is interesting how Utena telling Anthy that she doesn't have to do what this mysterious guy(end of the world, who is Akio BTW) tells her to do foreshadows the ending of the series.

The music is also even better this arc.