Kill one of your main targets like a true assassin.
Eagle's Challenge (20)
Defeat 25 guards in a single fight.
Eagle's Swiftness (20)
Perform 100 Counter Kill in Fights.
Eagle's Dive (20)
Perform 50 Combo Kills in Fights.
Eagle's Talon (15)
Perform 50 stealth assassinations.
Eagle's Dance (10)
Perform 50 leap of faith.
The hands of a Thief (15)
Pickpocket 200 throwing knives.
March of the Pious (5)
Use Scholar blending 20 times.
Eagle's Eye (15)
Kill 75 guards by throwing knives.
Enemy of the Poor (5)
Grab and Throw 25 Harassers.
Gifted Escapist (5)
Jump through 20 merchant stands.
Keeper of the Black Cross (10)
Find All Teutonic Flags in Acre.
Keeper of the Order (10)
Find all Templar Flags in Acre.
Keeper of the 8 Virtues (10)
Find All Hospitalier Flags in Acre.
Completion bonuses
Successfully complete the game. When the Memory Blocks are played again in Story mode you can kill anyone without penalties. Additionally, you will be able to use Eagle Vision at any time regardless of Synchronization levels inside of the Animus.
Defeating Al Mualim
When you first engage in combat mode against him (after fighting the duplicates of Al Mualim) lock on to him by pressing LT. Quickly equip the hidden blade before attacking. Wait for a counter and you will defeat him with the first blow you hit him. This is after you fight Al Mualim when he makes about six duplicates of himself.
Defeating Templars
When initiating combat against a Templar, press LB to lock on to him. Then, quickly equip the hidden blade. Wait for him to attack you so that you can counter attack, killing him in one blow. This is better than the sword fight. When sword fighting if you counter, you will only knock him down and not kill the Templar.
The easiest way to kill a Templar is to counter. When they get knocked down, switch to the hidden blade and stab them.
Defeating the Master
When fighting the Master he will take away your ability to use radar and make it difficult to see. This also allows him to hit you once and kill you. Lock on to him and use a throwing knife against him. This will take away his power to blind you and make him easier to kill.
The first part is simple. Take your sword out, as you will be fighting all your previous assassination targets. They are fairly easy to kill. Only one counter is required to kill each of them. For the second part, as soon as Al Mualim releases you, use your Eagle Vision. The real Al Mualim is the one in yellow. Focus your attacks on him. In the third part, Al Mualim takes away your synchronization bar and radar, allowing him to kill you in one hit. Take out your throwing knives. Look for the Piece of Eden in his hand. Once you see him, throw a knife at him. Thenm just counterattack/grab break him. Keep repeating this until he says, "Damn you Altair!" Finish him off with your hidden blade, or keep attacking him with your sword until he is dead.
When Al Mualim gets ready for the final part of the battle immediately after his third speech, lock on to him and equip your hidden blade. Move closer to him and when he is ready to attack, counter him to score an instant kill. He will fall to the ground and you can easily assassinate him without chasing him all over the courtyard. However, only do this if you have mastered the use of your counter attacks.
Defeating William of Montferrat in Acre
After the guards (or most of them) leave William, drop down from the castle and slay William. Afterward, "de-target" or deselect, and run up into the castle buildings and battlement to get away. This is the fastest way of completing the mission.
Dr. Vidic's computer
To access Dr. Vidic's computer and emails, before starting Memory Block 5, walk up behind him and press any button to steal his pen.
Easier interrogation
After you get the "target" to a safe area to "Interrogate" them, punch them first then "grab" them for faster completions. It will take about two grabs to quickly finish them. However, into the last three quarters of the game you may have to grab them up to, but exceeding, four times.
Easy "Eagle's Challenge" achievement
In Memory Block 1, after Al Mualim sends you to defend the fortress against the Templar attack, wait at the intersection/fork that is about 135 feet from the destination, just after the hill/path that leads to the Creed building. Guards will continuously respawn down the right fork. You can simply stand still and kill 25 guards, as your status will never leave "exposed", until you go to the destination.
Go to the entrance of Acre, but go through Kingdom. There is a base of soldiers. Start killing them but do not finish all of them. Start running to gather more. Kill a few and run again. Do this until you get the achievement. If you take long you may also unlock the "Eagle's Flight" achievement.
Easy "Eagle's Dive" achievement
In Masyaf, go to the castle. Enter the training arena and choose the option for combo kill. When you succeed three times the match will end. Select it again and continue until the achievement is unlocked.
Easy "Eagle's Flight" achievement
When you first reach Damascus and must save the citizen, kill two of the three guards. Back yourself into a stall or a corner that you cannot be pushed out of then hold RT to guard. In ten minutes you will have the achievement. You can also put a rubber band around your controller and LT and allow the game to idle.
Easy "Eagle's Will" achievement
In the area after you first start the game, just after you see the Knights Templar enter the room containing the Ark Of The Covenant. Approach the ladder in front and jump to the left of it, as if to grab onto the ledge on the wall. You will fly through the wall and land behind it on a square outline. Walk towards the middle of this square and you will fall through, dying shortly afterwards. After you die you will unlock the "Eagle's Will" achievement.
Easy "Gifted Escapist" achievement
Go into any of the main cities. It is probably easiest to go to Damascus, Poor District. Find a merchant stand and start hopping through it. If you can find two that are next to each other it saves time. Keep jumping through the merchant stand(s) until you get the achievement.
Easy "March Of The Pious" achievement
This achievement is probably easiest to unlock in Damascus. Save the citizen in front of the main gates if you have not already done so. If you have already done that, go to the scholars. Blend in with them. As they get past the main array of guards, start pressing Deblend continuously. You should be going in and out of blend mode continuously. After a short time you should get the achievement.
When you first reach Damascus after saving the citizen you will learn how to blend with scholars. Enter this blend and exit it twenty times very quickly to unlock the achievement.
Easy "Vision Of The Future" achievement
After you complete the game, walk to your bedroom and use Eagle Vision on the wall behind your bed. Scan it from left and right the credits will start. After they end you will get the achievement.
Easy citizen missions
When helping a citizen, do not just attack the guards. Hold the LT and press X with the dagger ready. This will eliminate one of the guards and give you a better chance. Sometimes you can assassinate two guards before they notice you.
Easy fights
Note: Only attempt this technique if they are fluent in the Rank 2 skill "Counter" and they have enough synchronization bars (a.k.a., life bars). One and a half rows of bars will do. When in battle, equip your hidden blade. With this equipped, all of your counters will score an instant kill. You can even instantly kill tougher ranked guards (for example, the Teutonic guards in Acre when hunting Sebrand). Also, most of the time using the hidden blade in battle will scare the last one or two (even three if you are lucky) guards, causing them to run away. However because you do not have a weapon that is sufficient enough to block a full sized enemy blade, all incoming attacks will hurt you.
When in battle, if you see a guard you are fighting physically emote in any way (for example, taunting you or cowering in fear), press [Low Profile Assassinate] while facing them to score an instant kill without having to counter.
The best weapon for more than four guards or thugs is the Short Blade.
Sometimes the guards will beat up on you and it would seem as if your timing is off using the counter attack. To create a little breathing room, tap [Action/Use Your Weapon/Attack] twice, then "grab and push" the guard. Disregard the guard you grabbed and pushed, and attack the others using the same technique. There are two ways you can finish them. The first is, after you "grabbed and pushed" all of them, use a strong attack. They will fall quickly. The second method is to "grab and push" them again. They will not get up again.
Enemy friend person
As soon as you get into kingdom from masyaf theres a bunch of assassin right before the large rock there are two next to a dead body go into eagle vision and the one on the left is an enemy.
Escaping from guards
Go to a high roof when chased. Kill the guards that appear. After a few kills they will either run or give up.
Frenzy attack
In order to do a frenzy attack, equip either the short blade or the sword. Once equipped, if you are facing a large number of guards, just keep attacking them, bouncing one attack to one enemy then attacking the next. If one of the enemies tries to attack you, while attacking another guard quickly press R1 then Square PlayStation3 or RB then X Xbox 360 . This will allow you to attack while quickly countering enemies. Another way is when the enemy dodges your attack then follows-up another attack. Do the same thing, but make sure your timing is good enough to allow you to survive even if there are six or more guards.
Guard inside Assassin's Bureau
When fighting a guard and near the Assassin's Bureau the message "The Assassin's Bureau is close" will appear while you are fighting. Make the guard follow until both of you are standing on the bureau's closed entrance. Kill him and make sure he is standing on it. The guard will fall down inside the bureau and will be visible. However, he will be dead. If you are lucky when killing the guard, he will fall on the fountain and will be hanging in a random strange position while water is pouring on him.
Hidden messages
After killing Al Muaiam and returning to the real world, listen to the conversation about how they going to kill you. Turn on your Eagle Vision and look at the floor. There are some mixed up letters on both sides of the Amnius. You should see on the side closest to the main door:
M O R Y M N O E S
E N C E O L C H T
H O N B T L O T C
T D E O S A T O A
P E D S N L S T F
L D D U O O E T E
E A I E I R I N T
H S H K T T K E R
T U A A A N S S A
To decode this, start reading at the bottom right hand corner to the top right hand corner, so you will start at "A" and stop at "S". It will spell a real word. Do this for all of the columns and it will read:
ARTEFACTS SENT TO THE SKIES TO CONTROL ALL NATIONS TO MAKE US OBEY A HIDDEN CRUSADE DO NOT HELP THEM
Next, do the same thing to the mixed letters on the other side of the Amnius:
A
D R H
O O D T M
W H B I T D O
E U S Y S I N S E
A R O O M R E A Y N R
I S E Y T N I D L M I D E
T W I H W Y I E A U D A Y H T
It will spell out: THEY DRAINED MY SOUL AND MADE IT THEIRS I DRAINED MY BODY TO SHOW YOU WHERE I SAW IT.
Kill people without penalty
After you beat the game go on story mode and kill people and you won't lose life.
Loud assassination
Hold LB + RB and press X. You can do this while running up to a guard and it almost always works from any angle. However it is noisy and causes civilians to run for guards.
Lucy's computer
One item you can pick up after being able to unlock your bedroom door is Lucy's password. You can then investigate her e-mails, which entail a short secondary story line. After you complete the last Memory Block, go back outside your room. Go to Lucy's computer. In "Deleted Items" is an e-mail which entails her talking to someone about a rescue, then the last reply comes back as:
WondEr Why It is everyone Laughs at you?
i'll Let you guess.
let's just say she's proBably gEtTing it bigger and better from someone else tHat isn't you.
how can you hope to compEte?
REst asSured there are sOme gOod ways.
click the liNk to see!
Removing the capital letters out of the message decodes the message as: WE WILL BE THERE SOON
Maximize efforts for each city
To lower the time needed to complete the game and to decrease the difficulty of each major assassination, do the following in order (with the exception of Masyaf).
Visit the Assassin's Guild.
Scan the city by first climbing all of the view points.
Rescue all the citizens from the thugs. You will need the help after a major assassination.
Complete all of the informant's missions (to get all the valuable information you can).
Pickpocket the shysters in all of the pickpocket missions (for information to the Guild).
When all of these are completed, go back to the Assassin's Guild and get ready for the major assassination mission.
Osiris Heaven
When you first reach Damascus after saving the citizen you will learn how to blend with scholars. Enter this blend and exit it twenty times very quickly to unlock the achievement.
Pass through wall
Get beside one of the blue walls that say "Subject cannot access memory at this time". Fight a guard in front of the wall and combo kill him. When he dies you will appear in the forbidden side of the wall. You can take a quick peek, but after a few seconds you will be teleported to your last checkpoint (as if you died).
If there is a viewpoint nearby the blue wall facing it with a hay bale on the other side of the wall, you can do the Leap Of Faith into the hay bale.
Secret Achievements
Achievement
How to unlock
Hero of Masyaf ( 20 points )
Protect Masyaf from the Templar invasion.
The Blood of a Corrupt Merchant ( 25 points )
Slay Tamir in Damascus.
The Blood of a Doctor ( 25 points )
Slay Garnier de Naplouse in Acre.
The Blood of a Liege-Lord ( 25 points )
Slay William of Montferrat in Acre.
The Blood of a Nemesis ( 25 points )
Slay Robert de Sable in front of King Richard.
The Blood of a Regent ( 25 points )
Slay Majd Addin in Jerusalem.
The Blood of a Scribe ( 25 points )
Slay Jubair in Damascus.
The Blood of a Slave Trader ( 25 points )
Slay Talal in Jerusalem.
The Blood of a Teutonic Leader ( 25 points )
Slay Sibrand in Acre.
The Blood of the Merchant King ( 25 points )
Slay Abul Nuqoud in Damascus.
The Punishment for Treason ( 20 points )
Find the traitor in Masyaf and bring him before Al Mualim.
Visions of the Future ( 50 points )
When available, Eagle Vision your bedroom wall.
Welcome to the Animus ( 20 points )
Successfully complete the Animus tutorial.
Silent assassination
Hold LB and press X. It has less of a chance of working, and works best when used behind guards so no one hears you.
Transformers reference
Travel to the southwestern-most vigilantes in the poor district of Damascus. On one of the buildings around them, you should see an outcropping in the wall, climb on it and you will see that it looks exactly like G1 Optimus Prime in vehicle mode. Note that there may be more than one outcropping in the area, so look carefully. If you lose sight of the vigilantes, you have gone too far.
Unlocking doors
When you go to bed after Memory Block 3, you will notice your closet door is open. Hit any button to get a piece of paper Desmond notes as a code. The code will unlock your bedroom door which will allow you to be able to go out as often as you like after you are put to bed, as well as to open the meeting room area. You can also pick up various items to unlock Lucy's password.
Successfully complete the game and allow the credits to end. You will be given the access code for the computer attached to the Animus. Hack the computer to access an inbox, outbox, and deleted message. Look at the inbox and choose the email about the conference room. You can go to the conference room and access it via the keypad.