Destroy All Humans!

Instead of holding R to destroy buildings or large objects, tap R and the destruction will happen faster without waiting for the recharge.

Probes are necessary to get upgrades quicker. 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.

If you scan a Psi-Mutant a few times, he will say "Algernon... Good mouse... Smarter... than... Charley". The Psi-Mutant is thinking about the book, "Flowers For Algernon".

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

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.

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: Santa Modesta
Blue Book: Saucer Blueprints: Rockwell
Evolution Of An Alien: Turnipseed Farm
Face of the Enemy: Area-42
Pathetic Humans!: Union Town
The Concept Barnyard: Capitol City

To get on top of the Santa Modesta's SMCBS TV station towers, first get on top of the station's roof. Then, jump onto the satellite dish and from there, to the slim post. Once on the post, jump and use the "Extra jetpack distance" trick to reach tower 2. From tower 2 you can also go to the other tower. From that altitude the police, army, and Majestic cannot see you. Use the Ion Detonator to blow them up. This is best done when aiming down before jumping; you can then see where you are landing.

Don't bother trying to run away from the authorities with short legs; use your jetpack liberally to fly away. Press Left Analog-stick Forward and hold A to boost away.

Put your target (dot in the middle of the screen) on any human, and press B. 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.

When trying to hypnotize people, rapidly tap X.