Destroy All Humans! PS2 cheats

 

All upgrades:
Pause game play, then hold L2 and press Square, Circle, Left(2), Circle, Square while on the Mothership. All upgrades for the currently unlocked weapons will be available for purchase from Pox's lab.

Better DNA value:
Every chance you get, do not kill the human before you extract their brain stem. Extract their brain stem first as it will make the DNA worth more (25 instead of 10).The easiest humans to do this to are the scientists in the level with glowing cows. For some reason, if the person that is important to you dies (the person you need to abduct), extract their brain stem before you return to the Mothership -- the DNA is usually worth more.

Faster Destruction In The Ufo:
Instead of holding R to destroy buildings or large objects, tap R1 and the destruction will happen faster without waiting for the recharge.

Finding More Probes:
Probes are necessary to get upgrades faster. In order to find them all, make sure to look high up on rocks or hard to reach places. Your jetpack is essential in getting to the high places. You may have to get up on the ledge or building, then use your jetpack to fly higher to get the probe.

Getting Away From The Law:
Forget running away from the authorities with short legs. Use your jetpack liberally to fly away. Press Left Analog-stick Forward and hold X to boost away.

Holobob:
Put your target (dot in the middle of the screen) on any human, and press Circle. In order to maintain your HoloBob, you must read the thoughts of the humans walking around. You can read the same person's thoughts repeatedly to keep your mental powers charged.

Levitation death:
It you levitate a person for a long time, they will die.

Lower brain juice meter:
When you are in the form of another person, to make you brain juice meter go down, read other people's thoughts.

Moonwalk:
Stand in an open area on any level and walk forward. Keep decreasing your speed until you eventually begin walking in place.

More DNA from Brain Extractions:
To gain additional DNA from Brain Extractions, complete all of the main missions.Example: Instead of gaining 10 DNA, you will gain 15 DNA.

Screensaver:
Allow the game to idle. Eventually the screen will turn black and white and elevator music will play in the background.

Staying human:
After getting out of your UFO, aim at a human and press Circle. When you have changed into the human, the bar on the top left corner of the screen will go down. When it is all gone, you will change back into an alien. If you want to remain human, turn into a human and while walking around, scan other humans or animals to make the bar on the top left corner stay up.

Unlock Art of the Furon:
Collect all Probes in Santa Modesta.

Unlock Blue Book:
Saucer Blueprints Collect all Probes in Rockwell.

Unlock Crypto, phone home!:
Complete Attack of the 50ft president

Unlock Developer Darwinism: Evolution of the game:
Complete Attack of the 50ft president.

Unlock E3 Booth Footage:
Complete Attack of the 50ft president.

Unlock Evolution of an Alien:
Collect all Probes in Turnipseed Farm:

Unlock Face of the Enemy:
Collect all Probes in Area-42.

Unlock Furon Down!:
Complete Furon Down!

Unlock Goofy screenshots and voice overs:
Complete Attack of the 50ft president.

Unlock Outro Movie:
Complete Attack of the 50ft President. Unlock Pathetic Humans ! Collect all Probes in Union Town.

Unlock Plan 9 from Outer Space:
Complete Teenage Zombies from Outer Space.

Unlock Teenagers from Outer Space:
Complete Attack of the 50ft President.

Unlock The Concept Barnyard:
Collect all Probes in Capitol City.

Various Codes Hold L2, enter cheat, then release L2:.

Invinciblity:
Square, circle, left of d-pad, left on d-pad, circle, square

Infinite Ammo:
left on d-pad, circle, R2, right on d-pad, R1, square

Infinite Mind:
R1, R2, circle, right on d-pad, R2, circle

Aware Like A Fox:
Right, Square, R2, R1, Right, R2

Nobody Loves You:
Right, R2, R1, Square, Right

Mmmm Brains! (Must be entered on Mothership):
R1, R1, R2, R2, Left, Right, Left, Right, R2

More Upgrades (Must be entered on Mothership):
Square, Circle, Left, Left, Circle, Square.