Copied and pasted from the Blazblue Wiki: "In BlazBlue: Centralfiction, the three hidden bosses, Nine, Izanami and Ragna, appear after meeting the following conditions during Act 3: “The Replacement Blue”: To fight Unlimited Nine, the player must finish every round with a Distortion Drive. To fight Unlimited Izanami, the player must finish most rounds with an Overdrive or Astral Heat. To fight Unlimited Ragna, the player must finish nearly every round 1 with an Overdrive, and every round 2 with an Astral Heat. The Player cannot lose or finish anyone normally."
