Password - PlayStation 2 Cheats | |
| Cheats Activated Within Mission from the Start Menu. Hold L2, then type the Code. | |
| BulletProof Crypto (God Mode) | Square, Circle, Left D-Pad, Left D-Pad, Circle, Square |
| Ammo-A-Plenty (Unlimited Ammo) | Left D-Pad, Circle, R2, Right D-Pad, R1, Square |
| Deep Thinker (Unlimited Mind Power) | R1, R2, Circle, Right D-pad, R2, Circle |
| More Upgrades (You must be on the Mothership) | Square, Circle, Left, Left, Circle, Square (Same buttons for the "Bulletproof cheat but different effect) |
| Aware Like A Fox (Max Alert Meter) | Right, Square, R2, R1, Right, R2 |
| Nobody Loves You (Resets Alert Meter) | R2, Right, R2, R1, Square, Right |
| Mmmm Brains! (Increases DNA) (Must be entered on Mothership) | R1, R1, R2, R2, Left, Right, Left, Right, R2, R1 |
Unlockable - B-Movie Theater Unlockables | |
| Furon Down! | Complete Furon Down! |
| Outro Movie | Complete Attack of the 50ft President |
| Teenagers from Outer Space | Complete Attack of the 50ft President |
| Plan 9 from Outer Space | Complete Teenage Zombies from Outer Space |
Unlockable - Furongami Unlockables | |
| Evolution of an Alien | Collect all Probes in Turnipseed Farm |
| Blue Book: Saucer Blueprints | Collect all Probes in Rockwell |
| Art of the Furon | Collect all Probes in Santa Modesta |
| Face of the Enemy | Collect all Probes in Area-42 |
| Pathetic Humans! | Collect all Probes in Union Town |
| The Concept Barnyard | Collect all Probes in Capitol City |
Unlockable - Furon Propaganda Unlockables | |
| Developer Darwinism: Evolution of the game | Complete Attack of the 50ft president |
| E3 Booth Footage | Complete Attack of the 50ft president |
| Goofy screenshots and voice overs | Complete Attack of the 50ft president |
Secret - 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. | |
