In Assassin’s Creed: Revelations for the PC, PS3, and Xbox 360, there are several cheats that you can unlock to use in the Options menu when you replay a memory.
Here are the cheats you can unlock, and how to unlock them.
Buns of Steel (immune to damage) – Get 100% Sync in DNA Sequence 2
Calling All Assassins (unlimited use of the Assassin bars) – Get 100% Sync in DNA Sequence 5
Infinite Ammunition – Get 100% Sync in DNA Sequence 7
Killing Spree – Get 100% Sync in DNA Sequence 3
Permanent Secrecy – Get 100% Sync in DNA Sequence 6
Ultimate Guild (all assassins become Master Assassins) – Get 100% Sync in DNA Sequence 4
