Start the game with the "[drive and folder path]\\Need For Speed Hot Pursuit 2\\NfsHS.exe [command line parameter]" to activate the corresponding cheat function:
Car is invisible: +ghost
Disable on screen displays: +nofrontend
Disable mipmapping: +nomipmap
Cops use helicopters: +helicoptersOnly
Disable confirmations: +nofrustration
Disable reverberation: +noreverb
Disable particle animations: +noparticles
Disable movie demos: +nomovie
Enable screen shots: +screenshots
Disable music: +nomusic
Disable sound: +nosnd
Enable main menu: +minfront