Sweep 5 guards at once by using a Long Weapon.

Get 50000 points.

Beat Stage 1.

Die for the first time.

Get a 100 chain.

Unlock all 20 pieces of Subject 16's video.

Tint your clothes with those colors: Wetland Ebony and Wetland Ivory.

Perform an Air Assassination on a Poisoned NPC.

Find the 8 statuettes in Monteriggioni.

Buy a Painting from Florence and Venice.

Reach 80% of your stronghold's total value.

Complete DNA Sequence 14.