YMMV: The Persistence Of Loss
- Badass Decay: All of Organization XIII, with the possible exception of Xemnas and Xigbar, who are never seen in a real fight.
- Continuity Lock-Out: The author makes no efforts to familiarize the already complex plots of both games to unfamiliar readers.
- Crossover Ship: Felix/Xion, and Axel/Mia, by the end of the story.
- Foe Yay: Between Felix and Alex.
- Moral Event Horizon: Alex crosses it in chapter 17. He might not have been in control of himself, though.