The knife-wielding crowd pleaser can only be unlocked using Ubisoft's in-game rewards method "UPlay", so you'll need to pay attention to this tutorial video for more on that.

The character looks cool though. We're really excited for Assassin's Creed: Brotherhood, mainly because it brings a completely new gameplay style and aesthetic to multiplayer gaming. We're getting tired of guns and military, so this looks like a refreshing change.