Unlock Body Surf Ability
     Select "Extras" from the Main Menu and go to "Cheats":

Unlock Body Surf Ability:
     [Right], [Right], [Left], [Down], [Up], [Up], [Up], [Down]



Achievements
     Complete each achievement to get the allotted gamerscore.

Au (40)                  Achieve a rating of Gold or better in all Events.

Brain Trust (20)         Complete all Consume Events.

Cleanup (10)             Kill 15 characters with a single Whipfist attack.

Endless Hunger (10)      Consume 200 characters to boost your health.

Evolutionary Step (10)   Use the Upgrade Menu to acquire an Upgrade.

Gunning (10)             Destroy 20 Helicopters 
                         in a single Helicopter flight.

Half-Truths (10)         Complete a mission 
                         without causing a single Military Alert.

Hard To Kill (60)        Complete Story Mode 
                         in any difficulty without dying.

In Plain Sight (10)      Evade 10 strike teams.

In The Web (20)          Consume 50 Web Targets.

Infiltrator (20)         Infiltrate 10 Military Bases 
                         disguised as a Commander.

It's Him! (10)           Patsy 5 military personnel.

Mankind Is Your 
Mask (40)                Complete 3 missions 
                         without causing a single Military Alert.

Misconception (20)       Destroy 25 Infected Water Towers 
                         before they hatch.

Nice Guy (40)            Complete the game 
                         while consuming 10 Civilians or fewer.

Polymath (40)            Collect all Hint Collectibles scattered 
                         across New York City.

Pt (60)                  Achieve a Platinum Medal in all Events.

Repossession (10)        Seize 50 vehicles from enemy hands.

Return Fire (10)         Catch any object tossed by a Hydra; 
                         and throw it back.

Revenge Revisited (60)   Complete Story Mode on hard difficulty.

Self-Deception (20)      Discover what happened to Alex Mercer 
                         through the Web of Intrigue.

SME (20)                 Gain the ability to drive and fly all vehicles.

Speed Bumps (20)         Run over 500 characters in a single tank.

Streetwise (50)          Collect all Landmark collectibles 
                         scattered across New York City.

Surface-To-Air (10)      Shoot down 50 helicopters while driving armor.

The Butcher (30)         Kill 50 characters in 5 seconds.

The Cleaner (20)         Destroy 10 Military Bases or Infected Hives 
                         in New York City.

The First Thread (10)    Unlock the Web of Intrigue.

Threat Elevated (20)     Destroy 25 strike teams.

Trail Of Corpses (30)    Kill 53,596 infected.

Unnatural 
Selection (40)           Acquire all available upgrades.

Web Of Knowledge (60)    Acquire all nodes of the Web of Intrigue.

Wrecking Yard (20)       Destroy 2,000 vehicles.



New Game+
     Replay the story mode with all of the powers and upgrades already
obtained.



Unlock Platinum/Radical Events
     To  unlock  the extremely difficult Platinum events, earn Gold in 
every event. There are also Radical events which are nigh impossible.



Unlock Hard Mode
     Finish the Game on Normal Difficulty.