In Assassin’s Creed: Brotherhood for the PS3, Xbox 360, and PC, you can unlock several different cheats to enable in the cheat mode.
Buns of Steel (Invincibility)– In Sequence 2, earn 100% total synch
Desmond Everywhere (Desmond Skin) – In Sequence 8, earn 100% total synch
Killing Spree (Unblockable Assassinations) – In Sequence 3, earn 100% total synch
Ride the Unicorn (Horses are Unicorns) – In Sequence 1, earn 100% total synch
Sisterhood (Female Assassin’s Guild Recruits)– In Sequence 4, earn 100% total synch
Ultimate Guild (Assassino Rank Recruits) – In Sequence 5, earn 100% total synch
Unlimited Assassin Signals (No Cooldown Calling Assassins) – In Sequence 6, earn 100% total synch
