Sony Playstation2 Game Cheats
Destroy all Humans
Destroy All Humans!

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During play, hit pause then hold L2 and press one of the Button Combos below, then release L2 while the game is still paused to enable the Effect you require. You will see a message to confirm. Be sure to read the Cheat Notes below about the Effects marked with a *.

Effect .... Button Combo
Bulletproof Crypto (invincibility)* .... Square, Circle, Left, Left, Circle, Square.
Ammo-A-Plenty (unlimited ammunition) .... Left, Circle, R2, Right, R1, Square.
Deep Thinker (unlimited concentration)* .... R1, R2, Circle, Right, R2, Circle.
Pox Unlocks (all upgrades)* .... Square, Circle, Left, Left, Circle, Square.
Aware Like A Fox (maximum alert meter) .... Right, Square, R2, R1, Right, R2.
Nobody Loves You (reset alert meter) .... R2, Right, R2, R1, Square, Right.
Mmm... Brains! (increase DNA)* .... R1, R1, R2, R2, Left, Right, Left, Right, R2, R1.

Cheat Notes:
*Bulletproof Crypto (invincibility):
Pause game play while playing as Crypto to enter this code.
*Deep Thinker (unlimited concentration): Your concentration meter must be above 0% or you will not be able to use any of your mental abilities.
*Pox Unlocks (all upgrades): Pause game play while on the Mothership to enter this code. All upgrades for the currently unlocked weapons will be available for purchase from Pox's lab.
*Mmm... Brains! (increase DNA): Pause game play while on the Mothership to enter this code.

How to unlock Furon Propaganda bonuses:
Complete the Attack Of The 50 ft. President level to unlock the following entries under the Furon Propaganda option: Crypto, Phone Home!, Developer Darwinism: Evolution Of The Game, E3 Booth Footage, and Goofy Screenshots And Voice-Overs.
How to unlock Furongami movies: Collect all the probes in the indicated side mission to unlock the corresponding movie in the Furonigami option under the Archives menu: Art Of The Furon movie: Santa Modesta side mission. Blue Book : Saucer Blueprints movie: Rockwell side mission. Evolution Of An Alien movie: Turnipseed Farm side mission. Face of the Enemy: Area-42. Pathetic Humans!: Union Town. The Concept Barnyard: Capitol City.
How to unlock B-Movie Theater bonuses: Complete the indicated level to unlock the corresponding movie under the B-Movie Theater option: Furon Down!: Furon Down!. Outro Movie: Attack Of The 50 ft. President. Plan 9 from Outer Space: Teenage Zombies from Outer Space. Teenagers from Outer Space: Attack Of The 50 ft. President.

How to stay human: After leaving 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.
Faster destruction in the UFO: Instead of holding R1 to destroy buildings or large objects, tap R1 and the destruction will happen faster without waiting for the recharge.
Destroying Majestic cars: Use your PK ability on a Majestic limo. Hold L1 all the time. Get a wall between you and the car then start running away from the wall until the car smashes into it. Keep running backwards and the car will eventually explode. This trick can also be used to take out normal cars and people.
How to find 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.
How to get extra jet pack distance: When using all the power in your jet pack, repeatedly tap X and you can get to farther distances.
Ultimate saucer: Enable the 'Bulletproof Crypto' 'Ammo-A-Plenty' codes while on your saucer. It will not become damaged or lose ammunition.
How to get super Crypto: Enable the 'Deep Thinker', 'Bulletproof Crypto', and 'Ammo-A-Plenty' codes then get all of Crypto's upgrades. After this you can turn into a human and walk around TK'ing everything.
How to fly after Jetpack has run out: To fly after your Jetpack has run out, quickly tap X.

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

Submitted by: AJ, CheatBookJon and NP

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