Assasins Creed 2 tips

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Equipment
The following items can be unlocked by performing the actions below:

Condottiero War Hammer - Collect 50 hidden feathers and the Condottiero War Hammer will become available in the blacksmith's shop in the Villa Monteriggioni.

Auditore Cape - Collect 100 hidden feathers and then talk to Mario in the Villa Monteriggioni. He'll award you the Auditore Cape.This cape will give you maximum notoriety

Abilities
The following items can be unlocked by performing the actions below:

Climb Leap Ability - Complete Rosa's mission "Monkey See, Monkey Do" in Sequence 7 to earn the climb leap ability. With this ability, you can make longer jumps while climbing, letting you grab hand holds that'd normally be out of reach.

Disarm Combat Technique - Complete Mario's "Evasive Maneuvers" mission in Sequence 5 to unlock the disarm technique. Disarms let you counter incoming attacks from weapons that are normally too heavy to counter (like axes).

Trophies
A Piece of the Puzzle (Bronze) - Unlock a piece of Subject 16's video.
An Old Friend Returns (Gold) - Escape the hideout.
An Unexpected Journey (Silver) - Complete DNA Sequence 6.
Arrivederci Abstergo (Bronze) - Break out of Abstergo.
Art Connoisseur (Bronze) - Buy a Painting from Florence and Venice.
Assassin for Hire (Bronze) - Complete your first assassination mission for Lorenzo Il Magnifico.
Blanca's Man (Silver) - Complete DNA Sequence 10.
Bleeding Effect (Silver) - Complete training and reenter the Animus.
Bloody Sunday (Silver) - Complete DNA Sequence 4.
Choir Boy (Bronze) - Discover the Assassin's Tomb inside Santa Maria del Flore (The Duomo).
Doctor (Bronze) - Perform an Air Assassination on a Poisoned NPC.
Exit the Son (Silver) - Complete DNA Sequence 3.
Fly Swatter (Bronze) - Kick a Guard while using the Flying Machine.
Hallowed be thy name (Bronze) - Discover the Assassin's Tomb inside the Basilica di San Marco.
Handy Man (Bronze) - Upgrade a building in the Stronghold.
High Dive (Bronze) - Perform a Leap of Faith from the Top of Florence's Glotto's Campanile.
I can see your house from here! (Bronze) - Discover the Assassin's Tomb inside Torre Grossa.
I like the view (Bronze) - Synchronize 10 View Points.
In Memory of Petruccio (Bronze) - Collect all the Feathers.
Kleptomaniac (Bronze) - Pickpocket 1000 Florins.
Lightning Strike (Bronze) - Sprint for 100 meters.
Macho Man (Bronze) - Defend a woman's honor.
Mailman (Bronze) - Intercept a Borgia Courrier.
Man of the People (Bronze) - Toss more than 300 florins on the ground.
Masquerade (Silver) - Complete DNA Sequence 9.
Master Assassin (Platinum) - Unlock all trophies.
Messer Sandman (Bronze) - Stun 4 guards at once by throwing sand in their face.
Myth Maker (Bronze) - Find the 8 statuettes in Monteriggioni.
No-hitter (Bronze) - Kill 10 enemies while remaining in conflict without being hit.
Perfect Harmony (Bronze) - Tint your clothes with those colors: Wetland Ebony and Wetland Ivory.
Podesta` of Monteriggioni (Bronze) - Reach 80% of the your stronghold's total value.
Prison Escape (Bronze) - Discover the Assassin's Tomb inside the Rocca di Ravaldino fortress.
Red Light Addict (Bronze) - Spend 5000 florins on Courtesans.
Show your Colors (Bronze) - Wear the Auditore cape in each city.
Steal Home (Bronze) - Win a race against thieves!
Street Cleaner (Bronze) - Hide 5 dead bodies in a Bale of Hay.
Sweeper (Bronze) - Sweep 5 guards at once by using a Long Weapon.
The Birth of an Assassin (Bronze) - Be reborn as Ezio Auditore Da Firenze.
The Conspirators (Silver) - Complete DNA Sequence 5.
The Impenetrable Palazzo (Silver) - Complete DNA Sequence 8.
The Merchant of Venice (Silver) - Complete DNA Sequence 7.
The Pain of Betrayal (Silver) - Complete DNA Sequence 1.
The Prophet (Silver) - Complete DNA Sequence 11.
The Vault (Silver) - Complete DNA Seqeunce 14.
Tip of the Iceberg (Bronze) - Use your Eagle Vision to scan a Glyph in the environment.
Undertaker (Silver) - Discover the Assassin's Tomb inside the catacombs under Santa Maria Novella.
Venetian Gladiator (Bronze) - Discover the Assassin's Tomb inside Santa Maria della Visitazione.
Vengeance (Silver) - Complete DNA Sequence 2.
Victory lies in preparation. (Bronze) - Get all Hidden Blades, Item Pouches and Armor upgrades for Ezio.
Vitruvian Man (Bronze) - Unlock all 20 pieces of Subject 16's video.
Welcome to the Animus 2.0 (Silver) - Enter the Animus 2.0.