There are four capes available throughout the game. Please note that for the Medici and Venetian Cape you need to play Assassin's Creed: Project Legacy on Facebook.
Unlockable
How to Unlock
Auditore Cape - no notoriety
Rome 100% rebuilt.
Borgia Cape - no notoriety
Collect all 101 Borgia Flags.
Medici Cape - purely aesthetic
Complete the Auditore Trail Mnemonic in Assassin's Creed: Project Legacy.
Venetian Cape - purely aesthetic
Complete the Auditore Trail Mnemonic in Assassin's Creed: Project Legacy.
Cheat Codes
Get cheats by getting 100% synchronization in certain sequences. These can only be used while replaying memories with the exception of the Desmond Outfit.
Unlockable
How to Unlock
Buns of Steel
Get 100% sync in Sequence 2.
Desmond Outfit
Get 100% sync in Sequence 8.
Killing Spree
Get 100% sync in Sequence 3.
Ride the Unicorn
Get 100% sync in Sequence 1.
Sisterhood
Get 100% sync in Sequence 4.
Ultimate Guild
Get 100% sync in Sequence 5.
Unlimited Assassin Signals
Get 100% sync in Sequence 6.
Easy money
Go to the Thieves' Guild and stand on top of the tunnel entrance. A Borgia messenger should appear. Steal his money. You can repeat this as many times as desired. Note: If the Borgia messenger does not show up within thirty seconds, kill three civilians and repeat the process.
Hard item find
In the Antico district near the bottom, there is a break in an overpass where a usual4 guards are almost always positioned there. Attack these guard, either from a horse with air attack from a horse. 2 to 4 mercenaries will also attack and try to kill you. Kill all guard and the mercenaries. Upon doing a search for valuables of the merc's almost all have hard find items, such as Vlad coins etc. Always check the merc's for valuables.
How to get Easy Money
You can use this trick to get easy money at brotherhood. First you have to hire a thieves group then use a horse to run when you run with horse you see those thieves are following you and also you saw your money was increased because when those thieves are following you In running they pick pockets too. You need 75 florins to hire them but in a few minute you will get up to thousand florins.
How to unlock Borgia cape
To unlock Borgia cape you have to collect all 101 Borgia flags around the city. However when you wear it your Notifaction will be at zero just like Auditore cape.
Rewards
Several rewards which can be gotten for completing different in-game tasks.
Unlockable
How to Unlock
Armor/Dagger of Brutus
Complete all 6 Romulus Lairs and unlock the Romulus treasure room.
Bartolomeo's Axe
Complete all Mercenary Guild Challenges.
La Volpe's Bite
Complete all Thief Guild Challenges.
Maria's Dagger
Complete all Courtesan Guild Challenges.
Parachute
Destroy all of Leonardo's War Machines.
Raiden Outfit
Get at least Bronze medal in all VR Training Rooms Missions.
Capes...