Below is a list of cheats that you can turn on in the Ptions menu, usable while replaying memories, along with instructions on how to unlock them:
Ride the Unicorn:
This cheat turns all horses into unicorns! To get it, beat Sequence 1 with 100% Synch.
Buns of Steal:
This cheat gives you invincibility. Get it by beating Sequence 2 with 100% Synch.
This stops assassinations from being blocked. It is unlockable from beating Sequence 3 with 100% Synch
All recruits to the Assassin's Guild are female with this cheat active. You can get it by beating Sequence 4 with 100% Synch
All recruits to the Assassin's Guild are Assassino in rank. Beat Sequence 5 with 100% Synch to get it.
Calling all Assassins:
This cheat removes the cooldown timer when calling Assassins. Beat Sequence 6 with 100% Synch to get it.
This gives you a Desmond Skin, and you can get it by beating Sequence 8 with 100% Synch.
Added by: MongooseGeneral Jan 15th 2012, ID#16878