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.
To unlock a new ability called "Body Surf," navigate to the Cheats menu (under "Extras" in the Main Menu) and enter this code: RIGHT, RIGHT, LEFT, DOWN, UP, UP, UP, DOWN
Once you beat Story Mode, you'll be able to play through it again with all of your powers and upgrades.
Beat the game on Normal to unlock Hard Mode.
Unlockable: Secret Story Event
Complete all Scientist Consume events to reveal Karen Parker's location after her disappearance.
Confirmed by Shampt
Hint: Easy Thermobaric Tank
First you must unlock the Kill Event called "Rolling
Thunder," which appears between the East Village and the
Lower East Side (one block from the East coast). Right
next to the Event is a Thermobaric Tank. Jumping into it
will activate the Event, but you can back out of it
before the Event begins. Do this correctly and you'll
have a free tank. Note: If you exit the tank it or use it
to destroy a Hive or Base it will vanish. You can grab
it again at the Event point.
Hint: Unlimited EP Exploit
On mission 22/31, where you get the first cell phone
cut scene, you'll be asked to jack a Black ops
helicopter. Once you have the helicopter, you are
prompted to pick up a few Black Ops guys and then destroy
a Hive. Do not destroy the Hive!
You now have a helicopter with unlimited missiles, no
time limit, and as long as you don't destroy the Hive,
you can blow up anything else without it kicking off the
alert meter. This also allows you to get out of the
helicopter without it ending the mission (useful for
collect Memory Strands).
The easiest way to get EP in this is to switch to your
Infected Vision and fly around blowing up infected water
towers. You can save your game in the middle of this
mission if you need a break and do the same thing. You
can max out your skills and then some using this
exploit.
Hint: 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.
Hint: Mind the Crows
Infected water towers are always circled by squawking
crows. This makes it easier to track them down
Hint: Collectible Vision
It's sometimes difficult to spot Landmark and Hint
Collectibles. Switch on your Infected Vision (or Thermal
Vision) to help
discern them.
Additions by Eternis
Hint: Easy "Misconception" Achievement and EP
The "Misconception" Achievement requires you to
destroy 25 infected water towers before they hatch. Do
this after you get your powers back -- when Ragland helps
you -- as there seem to be more of them in abundance.
Lock on to one and run up the corresponding building,
jump to the roof and use the flying kick attack, causing
more than half of the life bar to be depleted. Upon
landing, follow up quickly with a combo. To make it a
little faster, use the "claws" powers.
Later in the game this becomes even easier. Just
hijack a helicopter, fly over infected areas and keep
tapping the target button until you target a water tower (or helicopter or Hive)
and fire away.
The "Friendly Fire" and "Projectiles" Kill Events as both have helicopters sitting next to the Event markers, so grab those and exit the event for a free 'copter.
Additions by ctpeters0 and Reurbo
Hint: 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.
Hint: Orb Collecting XP Rewards
You'll receive XP for each Orb you pick up. That value is based on how many Orbs you've collected. These values are given below in addition to the one-time bonuses you get for reaching certain Orb collection milestones.
Landmark Orbs
- 1 - 2,600 each
- 10 - 5,000 each (+10,000 bonus)
- 25 - 9,750 each (+25,000 bonus)
- 100 - 15,000 each (+50,000 bonus)
- 125 - 17, 250 each (+60,000 bonus)
- 150 - 20,000 each (+70,000 bonus)
Hint Orbs
- 1 - 5,000 Each
- 10 - 7,500 each (+10,000 Bonus)
- 15 - 12,500 each (+25,000 Bonus)
- 35 - 15,000 each (+50,000 Bonus)
Hint: Flourish Move
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.
Printable Prototype Cheats