Affect at least four enemies simultaneously with the Hallucinogenic Dart.

Shoot fifty enemies before they shoot at you.

Secure three Gang Strongholds and complete their optional constraints.

Win three different Fight Clubs.

Complete twenty Crowd Events.

Kill three enemies with a single stack of hanging barrels.

Complete three Templar Hunts and their challenges.

Complete Memory Sequence 3.

Assassinate fifty enemies.

Reach combo level 40.

Complete Memory Sequence 2.

Complete the Prologue.