Assassin's Creed Cheats
Enter the following at the title screen.
Code: Circle, L2, X, Square, Triangle, R2, L2
Killing Without Penality
Beat Game, and Replay Memory Blocks
Kill anyone without a penalty
After you beat the Game, when you go back to the story mode you can kill anyone without losing life.
Animus Eagle Vision
After the main storyline is Completed Eagle Vision can be used anytime regardless of Synchronization levels inside of the Animus.