Prototype Cheats - Xbox 360
Primary Collection of Cheats
Select the "Extras" option at the main menu. Select "Cheats", then enter one of the following codes to activate the corresponding cheat function. A message will appear to confirm correct code entry.
[Right], [Right], [Left], [Down], [Up], [Up], [Up], [Down] - Unlock Alex Mercer's devastating body surfing ability.
If you are just short of an upgrade (e.g. you have 90k EXP and you need 100k), you can earn the amount you need, purchase an upgrade with EXP, and kill yourself and return to a checkpoint and you'll have both the upgrade and the 90k you had at that checkpoint.
Complete each achievement to get the allotted gamerscore:
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.
Au (40) - Achieve a rating of Gold or better in all Events.
Brain Trust (20) - Complete all Consume Events.
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.
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.
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.
Additionally, there are seven secret achievements:
Errand Boy (10) - You've completed the Specialist Boss Fight.
Crossing The T (10) - You've completed the Hunter Boss Encounter.
Hope (20) - You've discovered the truth behind Hope, Idaho.
On Instinct (20) - You've completed the Mother Boss Battle.
Children Of Blacklight (20) - You've completed the Supreme Hunter Boss Battle.
One Thousand Suns (40) - You've completed the Supreme Hybrid Boss Battle.
Origin (20) - You've discovered the history of Elizabeth Greene.
Replay the story mode with all of the powers and upgrades already obtained.
Earn a "Gold" rank in all events. Note: This may also unlock some Radical events.
Defeating the Time Square Boss
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.
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.
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.
Finding Infected Water Towers
Squawking crows usually circle the Infected water towers, making them easier to find.
Unlock Hard Mode
Beat the game on Normal to unlock Hard Mode.
Unlock Secret Story event
Complete all Scientist Consume events to reveal Karen Parker's location after her disappearance.
It's sometimes difficult to spot Landmark and Hint Collectibles. Switch on your Infected Vision (or Thermal Vision) to help discern them.
Mind the Crows
Infected water towers are always circled by squawking crows. This makes it easier to track them down.
Smooth Landing Speed Boost
After jumping, avoid using both of your dashes while airborne and save one to use just before landing. If timed correctly, you should hit the ground at near full speed, which is very useful when attempting to evade the military or during a timed activity. Note: This doesn't work for the highest of drops.
Final Boss Strategy
After the cut scene ends, quickly switch to Armor and Blade (Infected Vision also helps). Stay away from your opponent until he starts to jump after you. When he lands, hit him with the Air Blade Slash. Get in a couple of good hits and he should be stunned. Grab him and repeatedly hit the PUNCH button. If he knocks you down to critical, use a Devastator move to stun him.
Web of Intrigue Targets
Most of the WoI targets will appear randomly, usually while doing a mission or a side mission. But the last few will pop up randomly. It takes forever, so grab a helicopter (using the mission-canceling exploit above) and use it to fly around the city to make things easier.
Once you purchase a power in Prototype and have it set as a shortcut move, you can then hold down the shortcut button to do a flourish move with the power. It's a unique, if useless, animation.
Easy "The Butcher" and "Speed Bumps" Achievements
To easily get "The Butcher" Achievement, which requires you to kill 50 people in five seconds (including pedestrians, military, infected etc.), wait until you have the ability to hijack a tank. Drive into a red zone that typically has a lot of fleeing normal and infected civilians and stick to driving on the side walk. Keep up with this same tactic to unlock Speed Bumps, which requires you to run over 500 people in a single tank.
Easy "The Cleaner" Achievement
"The Cleaner" Achievement requires you to destroy 10 military bases or infected hives. Choose Hives. Hives are being pummeled by the military by the time you get there, so some of the work is already done. All you have do is finish them off. Hijack a tank and destroy it. NOTE: The hives destroyed during missions count as well.