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Prototype (Xbox 360)

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Cheat Codes

Body Surfing

  • Select the "Extras" option at the main menu. Select "Cheats", then enter Right, Right, Left, Down, Up, Up, Up, Down as a code to unlock Alex Mercer's devastating body surfing ability. A message will appear to confirm correct code entry.
    , , and

 PC  Enter the code with D, D, A, S, W, W, W, S


New Game+ mode

Successfully complete Story mode. You can now replay Story mode with all powers and upgrades previously unlocked. Note: New Game+ is only unlocked for the difficulty setting that you have completed (and any lower difficulty settings).

Hard difficulty

Successfully complete the game under the Normal difficulty setting.

Platinum events

Earn a "Gold" rank in all events. Note: This may also unlock some Radical events.

Alternate endings

There are two possible ending sequences, good and bad. For the good ending, defeat the final Boss. For the bad ending, lose to the final Boss.


Walkthrough (PC)



Easy experience

Note: You can most likely do this trick with any helicopter. Do the mission where you have to steal a helicopter to find the right hunter. You are told to go fly over the Infected area and scan the Infected water towers for a suitable enemy type. Instead of doing that, fly to the Infected area and start shooting the Infected water towers that are around all infected the areas. You get about 8,000 experience points for each. Shoot 25 of them and you will get the achievement or trophy  Xbox 360    PlayStation3  for killing the Infected water towers without them hatching. As long as you properly hijack the helicopter and no one suspects you as an enemy, no one will attack you while this is going on. One water tower requires one missile. Make sure to steady it so you do not waste missiles. One flythrough with this helicopter can net you 1,192,000 experience points, assuming you can find one water tower per missile. You can get even more than that if you use your machine gun. After getting about 500,000 experience points, crash the helicopter and repeat the process again from the checkpoint.

Note: This trick only works once you acquire the ability to hijack helicopters and have Infected Vision, received later in the game. Hijack a helicopter. Once you do so, activate Infected Vision. Look for the bright orange water towers scattered throughout the level, primarily in the Infected areas. Shoot them with the helicopter's weapons. For each water tower you destroy, you will receive 10,000 experience points, which are important this far in the game. Note: Water towers respawn continuously for unlimited experience points.

An easy way to get experience points is to get a helicopter, preferably without alarm. Go to any Infected area and search for water towers containing Hunters. These are easily found by going to the area where the crows are circling. This indicates where an Infected water tower is located. Lock on to it and blow it up with a rocket. It should only take one with a direct hit. You will receive 8,000 experience points per water tower. With 200 rockets in an attack helicopter you can get 1,600,000 total experience points. Then using the machine gun, destroy forty more towers. You can then use the remaining homing missiles to blow up a hive for more points. Get another helicopter and repeat the process. The water towers will respawn after a short amount of time.

Use the following trick to gain more experience while running. Carry an army truck or another large object and run through the infected people, or collect the genetic materials that comes out of a hive.

Experience points for Orbs

The experience points awarded for each Orb that you pick up is based on how many Orbs you have already collected.

Landmark Orbs
1: 2,600 each
10: 5,000 each (and 10,000 bonus)
25: 9,750 each (and 25,000 bonus)
100: 15,000 each (and 50,000 bonus)
125: 17, 250 each (and 60,000 bonus)
150: 20,000 each (and 70,000 bonus)
Hint Orbs
1: 5,000 each
10: 7,500 each (and 10,000 bonus)
15: 12,500 each (and 25,000 bonus)
35: 15,000 each (and 50,000 bonus)

Defeating Elizabeth Greene

Contrary to popular belief this Boss battle is easy. Long before the battle, purchase all upgrades that allow you to do +3 Devastator attacks, upon max health. It is also a good idea to get all the upgrades you can via "Consume". The Boss is massive. Notice that under her life bar are other bars. These are some what the Boss' stabilizers, making her vulnerable only after you have severed them. At the beginning of the battle she will do a scream attack. Be careful. Scale up a building or whatever else you have to do. It is very easy to avoid. You will also have Hunters and Infected chasing you. Use the full body armor and claws/blade. Max out your health by running around and consuming. It is easy and the only issues you might have are Hunters, though with the upgrades one hunter can nearly boost your life to max, allowing for maximum Devastator attacks. This is one of your first Devastator attacks you will learn. Scale a building, boost over to her, fall, and initiate the attack. You will see quickly that the Boss' stabilizers are being damaged. Note: Every round the stabilizers' life will increase, meaning that you have to follow the tactics in the same way, and it will just take slightly longer. Strike her with the Devastator. You should have a chance for more, unless she does multiple attacks (green orbs that track you, spitting concrete and screaming). The armor reduces the amount of damage inflicted, allowing you enough time in between attacks to initiate the Devastator again. Once the stabilizers are done, she will fall and you can attack normally. She will then retreat (leaving you plenty of red life orbs to consume) before shooting out of the ground again, with more stabilizer life and "backup". Ignore the backup. This tactic works nicely, but if you get low on health, run away from her view and keep consuming. After she falls a total of three times you will have defeated her.

Defeating Supreme Hunter

  • Quickly switch to Armor and Blade after the cinematic ends. Having Infected Vision will help. Stay away from the Boss until he starts to jump. After he lands, attack him with an Air Blade Slash. He will become stunned after a few good hits. Grab him and repeatedly punch. If you are taken down to critical level, use a Devastator move to stun him.
  • As soon as the battle begins use your armor power and hook power. Immediately begin to use one of the following tactics.
Tactic 1
Keep him locked on. Hold [Jump] for a moment to get reasonable air. As soon as you jump, hold [Attack] button and allow it to fully charge. Then, immediately repeat. This should take four stuns to kill him. Do not bother disguising as the military will barely bother with you.
The first stun
The Supreme Hunter will be stunned very quickly from this. As soon as you are locked onto him and press [Grab], you should hook onto him and immediately be able to begin punching him. Instead of button bashing, press [Attack] at an easier rate than you normally would. It will register more and you will attack quicker. After the first stun, which comes very quickly in the battle, he will finally get the chance to use most of his attacks out on you.
His attacks
Normal Attack: His normal attack is usually swiping at you with his fists and will fling you into the air. These are very easy to dodge. If you are having trouble, try jumping then air dashing away or over him.
Throwing: Around the battle area are several explosive props which he will pick up and throw at you if you are far away. This is rare however, and he will usually miss.
Spike Attack: When he uses his attack, it is a very good idea to jump and double air dash away from him as much as possible. As soon as the spikes have shown themselves, it is useful to run at him quickly and get a few good charged slashes into him with your blade. You should not need to do this until after stun two.
Devastator: This is very easy to dodge. He will stand still and begin to spasm a bit before he unleashes his Devastator. Do not stand close to him during this time, as he can unleash an instant kill on you even when wearing armor. Instead, lock onto him and air dash around him in a circular radius until the main large tentacles have tried to hit you. Once they have missed (there are about three or four of them), find a spot clear of the large tentacles and change to blade power. Begin swiping at him with slightly charged blade attacks. You should be able to get your first hits into him while the tentacles are still moving out and not retracting. You can also get hurt while they are retracting; try not to run into them.
Repeat "Tactic 1" and counter his Devastators when you can. You will eventually stun him for a second time and you should encounter a cinematic during or slightly after the second stun. After the cinematic, you will realize that you have a time limit to kill him. Do not worry about it. Just repeat the first tactic and he will eventually die. You should not need to use "Tactic 2" unless playing on Hard mode or running low on time.
Tactic 2
Wait for the Supreme Hunter to land after a jump and slash him from behind with a few slightly charged blade attacks. As he turns to attack you, jump and air dash over him. You may choose to aerial attack him with a kick or slash him and then jump away. This will lower his health quickly, combined with attacking him during Devastators and spike attacks. This is advised only if you are really running low on time and have just finished stunning and hitting him.
Depending on whether you are still using "Tactic 1" (recommended), you should be able to quickly finish off the hunter within two more stuns. There are four stuns in total. Each stun should take away about 25% of his life under the Medium difficulty setting. If you are using the blade tactic, you will probably encounter him for longer and may get less stuns on him.
You should not need to heal before the cinematic. However, if you do get hurt badly during the second half and there are no people to consume, either stay with "Tactic 1" and jump kick him, or run to the part of the ship with the turrets (the tower object) and jump behind it into the water. As you jump back out, press Forward against the ship and you should hit the ship while coming back up and fall back into the water. Try to press [Grab] onto the side of the ship and heal there if possible. The Supreme Hunter should not be able to hurt you there. Just remember you have a time limit.

Destroying the Bloodtox Filters

  • This battle cannot be won on the ground; you will need a helicopter. Make sure your health is completely full. Note: At this point there are somewhat infected areas and fully infected areas. You will not find any military in the fully infected areas, so have at it there. Also, have the Whip upgrade. Take your time on this one; the longer you spread the mission out, the easier it will be. If at any time your health gets low, bail from the chopper and replenish it. Once on the roof when you start at the facility, turn to the right to see two guards on top of a building across the street shooting rockets down at the crowd. Use your whip and kill both of them. This will save a lot of frustration later, because those missiles were heat seeking you will be in a chopper. You will need a helicopter for the next step. If there are no helicopters nearby, make enough commotion for a strike team to be called in. Once the chopper is in distance, use your whip and take it over. Every time you take over a heli, you will have about a 30 second grace period before the other choppers start firing at you; use it. Select the heat seekers and blow the other helicopters away; wait for your threat to go down before you go into the Facility airspace. Once your threat is down, fly over to the Bloodtox Facility. The first things you need to take out are the guard towers. There are about eight to ten of them. They are on all sides and corners. They also have heat seeking missiles. Once the towers are down, the facility is completely open. Beware of strike teams, etc. Save your heat seekers for them and get an aim on them before they do whenever they appear. When all the towers are down, the primary objectives are to shoot those small boxes near each of the tanks. They have red blinking lights on them, and there are exactly eight of them. Note: There are other threats in this mission. One of them is the tank that will constantly shoot at you, but not with heat seekers. However, some of the missiles people fire from the ground are. Listen to your helicopter warnings and keep an eye out for other choppers that are getting close to you. The more you take out first, the better.
  • Go to the Bloodtox facility in a helicopter from the strike team. Evade the attacks while destroying at least three to five filters. Then, steal a black tank while in a military disguise. Enter the facility without kicking off the disguise meter. When inside the facility, begin destroying the filters. Destroy the targets very quickly, before the tank is destroyed. If the tank explodes, escape and recover your health. Go back with another tank and repeat the process.

Helicopter jumping

To do this trick you will need the ability to Jump Kick so that you can fly towards the first helicopter of The Strike team. You can also use the Whipfist's Grab upgrade to latch onto an enemy helicopter. Double Jump can also be useful. To start, jump up and Jump Kick or use the Whipfist Grab to latch onto the first helicopter. Do the button event to kill the pilots. Fly up as high as possible and look for the next target. Make sure to use the Lock On ability. Jump out of the current helicopter and Jump Kick towards the next helicopter. You can keep doing this as long as there are helicopters. If you fall, quickly use the Whipfist Grab. Note: This can be very challenging but if done successfully you can attack numerous helicopters without ever touching the ground.


If you have Double Airdash and Glide, by using the Glide, Dash, Glide Dash trick you will be able to reach much farther distances.

Armored Glide

Once you obtain the Armor Defense power, you will be able to use this trick. It can be used to catch up and attack enemies with force. When you get close to an enemy that you can glide over him, revert to normal Alex then initiate a glide. While gliding, activate your Armor Defense power. This will allow you to maintain your glide as long as you do not release it or dash. This will allow you to glide over stationary enemies and attack with more force. This is especially useful when fighting Elizabeth Greene (the Times Square Boss).

Better landings

When jumping, use a dash just before landing. If timed correctly and if the drop was not too great, you should land at near full speed.

Attack animations

When consuming enemies, use different attack powers such as the Whipfist or the Blade to see different animations. Each attack power has a few animations to show off.

Thermobaric tank

If you want to use or find a Thermobaric tank after the mission where one appears, go to the event "Rolling Thunder". Hop in and cancel the event to use the tank. If you cannot find it or do not know if you have unlocked it yet, pause game play, select "Events", then "Kill" and scroll down until you find "Rolling Thunder".

Remaining undetected

To remain anonymous and destroy the detectors, hijack a chopper and let your disguise meter cool down. Keep at a distance and make sure that the disguise meter is low. Target the detectors and fire the turrets. This will allow you get to the base without detection.

Finding Infected water towers

  • Squawking crows usually circle the Infected water towers, making them easier to find.
  • As soon as you unlock the Infected Vision you can see the water towers that are infected. They will glow the orange color like any other infected.

Avoiding death

When your health is low, do not fight with hunters. Climb up to higher building so that hunters cannot reach you, or stand and watch as the military kills all hunters.

Extended change

Hold the D-pad when using the armor power, vision power, shield power, or attack powers to see an extended change in disguise. Each power has their own mini-cinematic. You can test it with or without the armor on.

Extended gliding

Jump into the air and glide. When you start descending, use air dash and press A(2) to fly again. You can repeat this until you run out of air dash (two maximum), for a total combo of three glides and two air dashes). You can glide for three times as long with this trick, allowing you to cover more ground.

Easy achievements


Complete the following achievements to unlock Microsoft Gamerscore points.

Revenge Revisited (60 points): Complete Story Mode on hard difficulty.
Endless Hunger (10 points): Consume 200 characters to boost your health.
Trail Of Corpses (30 points): Kill 53,596 infected.
Wrecking Yard (20 points): Destroy 2,000 vehicles.
Misconception (20 points): Destroy 25 Infected Water Towers before they hatch.
Brain Trust (20 points): Complete all Consume Events.
Streetwise (50 points): Collect all Landmark collectibles scattered across New York City.
Polymath (40 points): Collect all Hint Collectibles scattered across New York City.
Half-Truths (10 points): Complete a mission without causing a single Military Alert.
Mankind Is Your Mask (40 points): Complete 3 missions without causing a single Military Alert.
The Butcher (30 points): Kill 50 characters in 5 seconds.
Return Fire (10 points): Catch any object tossed by a Hydra; and throw it back.
Gunning (10 points): Destroy 20 Helicopters in a single Helicopter flight.
Cleanup (10 points): Kill 15 characters with a single Whipfist attack.
The First Thread (10 points): Unlock the Web of Intrigue.
Self-Deception (20 points): Discover what happened to Alex Mercer through the Web of Intrigue.
Web Of Knowledge (60 points): Acquire all nodes of the Web of Intrigue.
It's Him! (10 points): Patsy 5 military personnel.
In Plain Sight (10 points): Evade 10 strike teams.
Infiltrator (20 points): Infiltrate 10 Military Bases disguised as a Commander.
Threat Elevated (20 points): Destroy 25 strike teams.
Repossession (10 points): Seize 50 vehicles from enemy hands.
SME (20 points): Gain the ability to drive and fly all vehicles.
Surface-To-Air (10 points): Shoot down 50 helicopters while driving armor.
Evolutionary Step (10 points): Use the Upgrade Menu to acquire an Upgrade.
Unnatural Selection (40 points): Acquire all available upgrades.
The Cleaner (20 points): Destroy 10 Military Bases or Infected Hives in New York City.
In The Web (20 points): Consume 50 Web Targets.
Au (40 points): Achieve a rating of Gold or better in all Events.
Nice Guy (40 points): Complete the game while consuming 10 Civilians or fewer.
Hard To Kill (60 points): Complete Story Mode in any difficulty without dying.
Speed Bumps (20 points): Run over 500 characters in a single tank.
Pt (60 points): Achieve a Platinum Medal in all Events.

Additionally there are seven secret achievements.

Crossing The T (10 points): You've completed the Hunter Boss Encounter.
Errand Boy (10 points): You've completed the Specialist Boss Fight.
Children Of Blacklight (20 points): You've completed the Supreme Hunter Boss Battle.
On Instinct (20 points): You've completed the Mother Boss Battle.
One Thousand Suns (40 points): You've completed the Supreme Hybrid Boss Battle.
Hope (20 points): You've discovered the truth behind Hope, Idaho.
Origin (20 points): You've discovered the history of Elizabeth Greene.


Glass building

During the "A New Order", mission , reach the destination point. Do not start the new mission. Instead, wall run up the building directly next to the destination point. There will be a smaller red building (similar to a hideout) on top of it. Punching or kicking that specific red building will be like punching a window or any other glass object.

Floating character

To perform this glitch you must have the Hammer Fist Power and Hammer Fist Throw. Find a building with a small wall around the sides or no wall. Run to the edge as if you are going to do the hammer throw. When very near the edge, hold Y to do the hammer throw. You should slide off the edge and float until your character throws his fist.

Consuming Supersoldiers

Go to the "Close Combat" war event, south of the park. There is a fight going on between hunters and GENTEK Supersoldiers. Do not enter the war event. The Supersoldiers outside the event are significantly different, because they do not cause military alerts when you approach them, but they are still hostile. Hold RB behind them and you can initiate a stealth consume. Note: You cannot become them.


Strategy guides from GameFAQs