Receive 100% synch in ACB and full synch in all missions of the Da Vinci Disappearance.
Double Assassinate from a parachute.
Kill 10 guards with a single arrow storm.
Steal 5 horses from their riders, while remaining on horseback.
Pay 500 florins to an orator, then pickpocket him afterward.
Throw a Long Weapon, Heavy Weapon, and Smoke bomb more than 10 m at a guard.
Complete the Da Vinci Disappearance.
Kill a guard with the bag that drops from a lift.
Complete DNA Sequence 3.
Kill a guard with a broom.
Remove All Borgia Flags in Rome.
Solve all of Subject 16's puzzles.
Jump with the parachute off the top of Castel Sant'Angelo.
Discover the Shrine in the Basilica di San Pietro.
Complete DNA Sequence 7.
Discover the Shrine in Palazzo Laterano.
Burn All Borgia Towers.
Discover the Shrine in the Cloaca Maxima.
Complete DNA Sequence 6.
Collect All Feathers.
Complete DNA Sequence 5.
Win the highest bet at the Fights.
Destroy the Naval Cannon.
Complete 10 Guild Challenges.
Destroy the Tank.
Train a recruit up to the Rank of Assassin.
Complete DNA Sequence 4.
Destroy the Bomber.
Destroy the Machine Gun.
Score 750 points or more on a single kill (Multiplayer Only).
Perform an Execution Streak of 10 kills.
Recruit 3 Assassins.
Kill your target and escape your pursuer in less than 10 seconds (Multiplayer Only).
During Open Conflict, kill your target and escape (Multiplayer Only).
Perform a double or triple escape (Multiplayer Only).
Renovate 5 buildings in the Antico district.
Throw money in a well.
Complete an entire Session with at least one kill (Multiplayer Only).
Discover the Shrine in the Catacombe di Roma.
Discover the Shrine in Il Colosseo.
Earn 3 gold medals in the Animus Virtual Training Program.
Achieve 100% Synchronization in any Sequence other than Sequence 1.
Replay a Memory.
Complete DNA Sequence 2.
Find 1 Artifact in 2012.
Access your email in 2012.
Discover the Shrine in the Terme di Traiano.
Find a secure place to hide and re-enter the Animus.
Complete DNA Sequence 1.
Attempt to access DNA Sequence 9 for the first time.
Complete DNA Sequence 8.
Complete DNA Sequence 9.
Secure the Apple of Eden.
Kill your target while hidden in a hay bale (Multiplayer Only).
Take the lead 10 seconds before the end of a session and go on to win (Multiplayer Only).
Reach Level 50 (Multiplayer Only).
Get all the Co-op bonuses in 1 session (Multiplayer Only).
Get every single bonus at least once (Multiplayer Only).
Win 10000 florins playing Hazard.
Beat up the 5 thirsty harlequins.