- I Knew It!: Many fans had a theory about Marie Amabuki and Wicked from the first game being the same person is due to them having the same voice actors, first names and similar appearances. This is confirmed in both the Bad Ending, where Marie regains her memories and former identity as Wicked, and in her Character Episode where she remembers her past self's actions in the real world and in Mobius.
- The Wiki Rule: Caligula Wiki.
Trivia / The Caligula Effect 2