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