Here is the full list of all 51 Assassin's Creed II trophies - there are 34 bronze, 15 silver, 1 gold and 1 platinum.
Unlock all trophies.
Unlock all 20 pieces of Subject 16's video.
Find the 8 statuettes in Monteriggioni.
Wear the Auditore cape in each city.
Collect all the Feathers.
Escape the hideout.
Complete DNA Sequence 14.
Sweep 5 guards at once by using a Long Weapon.
Stun 4 guards at once by throwing sand in their face.
Complete DNA Sequence 11.
Tint your clothes with those colors: Wetland Ebony and Wetland Ivory.
Get all Hidden Blades, Item Pouches and Armor upgrades for Ezio.
Complete DNA Sequence 10.
Complete DNA Sequence 9.
Pickpocket 1000 Florins.
Buy a Painting from Florence and Venice.
Discover the Assassin's Tomb inside Santa Maria della Visitazione.
Intercept a Borgia Courrier.
Reach 80% of your stronghold's total value.
Complete DNA Sequence 8.
Kick a Guard while using the Flying Machine.
Discover the Assassin's Tomb inside the Basilica di San Marco.
Complete DNA Sequence 7.
Complete training and reenter the Animus.
Complete DNA Sequence 6.
Discover the Assassin's Tomb inside the Rocca di Ravaldino fortress.
Spend 5000 florins on Courtesans.
Discover the Assassin's Tomb inside the Torre Grossa.
Complete your first assassination mission for Lorenzo Il Magnifico.
Complete DNA Sequence 5.
Kill 10 enemies while remaining in conflict without being hit.
Perform an Air Assassination on a Poisoned NPC.
Upgrade a building in the Stronghold.
Complete DNA Sequence 4.
Discover the Assassin's Tomb inside Santa Maria del Fiore (The Duomo).
Discover the Assassin's Tomb inside the catacombs under Santa Maria Novella.
Toss more than 300 florins on the ground.
Complete DNA Sequence 3.
Complete DNA Sequence 2.
Win a race against thieves.
Hide 5 dead bodies in a Bale of Hay.
Unlock a piece of Subject 16's video.
Use your Eagle Vision to scan a Glyph in the environment.
Synchronize 10 View Points.
Defend a woman's honor.
Complete DNA Sequence 1.
Perform a Leap of Faith from the Top of Florence's Giotto's Campanile.
Sprint for 100 meters.
Enter the Animus 2.0.
Break out of Abstergo.
Be reborn as Ezio Auditore Da Firenze.