Bullets Don't Affect You
To make yourself impervious to bullets, enter the code "Fatty" to unlock the Defiance option... or complete Camp 3 with an A ranking.
This is unique... a code to relock all of the levels. Enter "defaultm" as a password to do this.
To make the guards bigger or smaller, enter the password "Muffin" to unlock the Size option, or get an A Rank in Camp 2.
To change the awareness of the guards, enter the password "Quincy", which will unlock the Awareness option. Or, beat Camp 1 with an A ranking.
To get unlimited money, enter "Dino" as a password to unlock Infinite Goodies as an option. You can also earn this by getting an A Rank in Camp 4.
To unlock all levels, enter this password: ger1eng5.
To unlock various events, enter these passwords: Core: coretimes Daily: alltimes No Core (except current): farleymydog
To unlock the First Person View, enter "Boston" as a password or get an A rank in Camp 5.
To unlock the Overhead View, enter the password "Foxy" or get an A rank in Camp 4