Assassin's Creed: Brotherhood Cheats

Home Improvement (Bronze): Renovate 5 buildings in the Antico district.
In Memoriam (Bronze): Collect All Feathers.
Job Skills (Silver): During Open Conflict, kill your target and escape (Multiplayer Only).
Julius Caeser (Platinum): Win Every Trophy.
Kaboom! (Bronze): Destroy the Tank.
Mailer Daemon (Bronze): Access your Email in 2012.
Needle in a Haystack (Bronze): Kill your target while being hidden in a hay bale (Multiplayer Only).
One-Man Wrecking Crew (Silver): Discover the Shrine in Palazzo Laterano.
Overachiever (Bronze): Score 750 points or more on a single kill (Multiplayer Only).
Perfect Recall (Bronze): Achieve 100% Synchronization in any Sequence other than Sequence 1.
Perfectionist (Bronze): Earn 3 gold medals in the Animus Virtual Training Program.
Plumber (Silver): Discover the Shrine in the Cloaca Maxima.
Principessa in Another Castello (Silver): Complete DNA Sequence 4.
Requiescat In Pace (Bronze): Complete DNA Sequence 9.
Role Model (Bronze): Get all the Co-op bonuses in 1 session (Multiplayer Only).
Rome in Ruins (Silver): Complete DNA Sequence 2.
Sanctuary! Sanctuary! (Bronze): Find a secure place to hide and re-enter the Animus.
Serial Killer (Bronze): Perform an Execution Streak of 10 kills.
Show Off (Bronze): Complete 10 Guild Challenges.
Splash! (Bronze): Destroy the Naval Cannon.
Spring Cleaning (Bronze): Kill a guard with a broom.
Strong Closer (Bronze): Take the lead 10 seconds before the end of the session and win the game (Multiplayer Only).
Synchronization Established (Bronze): Complete an entire Session with at least one kill (Multiplayer Only).
Technical Difficulties (Bronze): Attempt to access DNA Sequence 9 for the first time.
The Gloves Come Off (Bronze): Win the highest bet at the Fights.
Tower Offense (Bronze): Burn All Borgia Towers.
Undertaker 2.0 (Bronze): Discover the Shrine in the Catacombe di Roma.
Vittoria Agli Assassini (Silver): Complete DNA Sequence 8.
Welcome to the Brotherhood (Bronze): Train a recruit up to the Rank of Assassin.
Your Wish is Granted (Bronze): Throw money in a well.

The Da Vinci Disappearance Trophies
There are 7 Bronze Trophies and 3 Silver Trophies.

Airstrike (Bronze): Kill 10 guards with a single arrow storm.
Clowning Around (Silver): Beat up the 5 thirsty harlequins.
Easy Come, Easy Go (Bronze): Pay 500 florins to an orator, then pickpocket him afterward.
Going Up (Bronze): Kill a guard with the bag that drops from a lift.
GPS (Silver): Complete the Da Vinci Disappearance.
Grand Theft Dressage (Bronze): Steal 5 horses from their riders, while remaining on horseback.
High Roller (Bronze): Win 10000 florins playing Hazard.
il Principe (Silver): Receive 100% synch in ACB and full synch in all missions of the Da Vinci Disappearance.
Special Delivery (Bronze): Double Assassinate from a parachute.
Strong-Arm (Bronze): Throw a Long Weapon, Heavy Weapon, and Smoke Bomb more than 10 m at a guard.

Capes
Perform the following actions to unlock additional capes for Ezio. You can wear capes by equipping them in the Inventory menu.

Auditore Cape: Repair everything to get 100% on Rebuilding Rome
Borgia Cape: Collect the 100 Borgia Flags
Medici Cape: Complete the Auditore Trail Mnemonic in Assassin's Creed: Project Legacy
Venetian Cape: Complete the Auditore Trail Mnemonic in Assassin's Creed: Project Legacy

Rewards
Different rewards can be unlocked for completing various in-game tasks.

Armor/Dagger of Brutus: Complete all 6 Romulus Lairs and unlock the Romulus treasure room
Bartolomeo's Axe: Attain rank 1 in the Mercenaries Guild challenges
Courtesans poison guards: Attain rank 5 in Courtesans guild challenges
Faction crest: Attain rank 5 in the corresponding guild challenges
Faction discount: Attain rank 10 in the corresponding guild challenges
La Volpe's Bite: Attain rank 1 in the Thieves Guild challenges
Maria's Dagger: Attain rank 1 in the Courtesan Guild challenges
Parachute: Destroy all of Leonardo Da Vinci's War Machines
Sword of Altair and assassins crest: Complete all assassins guild challenges
Thieves pickpocket guards: Attain rank 5 in Thieves guild challenges
War horse spawned at stables: Renovate all stables in Rome

Unlock Raiden Player Skin
Clear all VR Training Missions with Bronze medal completion, or higher.

Unlockable Cheats
Get 100% in certain memory sequences. These can only be used when replaying memories.

Buns of Steel: 100% sync in sequence 2
Desmond Everywhere: 100% sync in sequence 8
Killing Spree: 100% sync in sequence 3
Ride the Unicorn: 100% Sync in Sequence 1
Sisterhood: 100% sync in sequence 4
Ultimate Guild: 100% sync in sequence 5
Unlimited Assassins Signals: 100% sync in sequence 6

Unlockables through Uplay
Sign in to Uplay from the Man Menu and select "Rewards". You can purchase goodies here using the points you earn for getting 4 different trophies in the Single Player game. They are: Technical Difficulties Perfectionist Deja Vu A knife to the heart

Altair's Armor: Purchase it for 20 points from Uplay
Altair's Costume: Purchase it for 20 points from Uplay
Assassin's Creed: Brotherhood Theme (for XMB): Purchase it for 10 points from Uplay
Florentine Noble Attire: Purchase it for 20 points from Uplay
Hellequin (for Multiplayer): Purchase her for 40 points from Uplay