Put 10 guards to sleep with blowdarts

Destroy a Horn Bearer's horn with a throwing knife

Headshot 20 guards with throwing knives

Pickpocket a guard affected by a blowdart

Eliminate Al-Ghul

Assassinate 10 guards from hiding spots

Become an Initiate of the Hidden Ones

Acquire a Super Attack or Mastery in the Super Attack Skill Tree.

Unlock an entry in the Z Encyclopedia.

Play and complete a game session of Game Lab in the Multiplayer Public playlist.

Complete the Discovery Mode of Wolfpack in Multiplayer.

Attain 100% completion.