Complete chapter 3.

Make Irene remind you about the mission once.

Escape from an enemy once.

Successfully complete the panic mini-game once.

Get a document.

Get half of the collectibles.

Use 5 hiding places.

Walk about crouching 100 yards.

Raised 3 jobs' ranks to max.

Obtained all trophies.

Completed all Bond Missions.

Completed an optional ronin mission with the "Midnight" difficulty setting enabled.

Sealed the fate of your Blade Twin.