Star Wars: Rogue Squadron 

Fly a Naboo Starfighter 
Enter "HALIFAX?" as a passcode. Ignore the incorrect entry sound.
Then, enter "!YNGWIE!" as a second passcode.
A Naboo Starfighter from Star Wars: Episode 1 - The Phantom Menace will now be between the X-Wing and V-Wing
at the ship selection screen and available in any mission that does not require a Snowspeeder or T-16 Skyhopper.
To disable this code, enter "HALIFAX?" as a first passcode and anything else as a second passcode.

All levels and ships 
Enter "DEADDACK" as a passcode. If you entered the code correctly, R2-D2 will make a high pitch sound.

Infinite lives 
Enter "IGIVEUP" as a passcode. If you entered the code correctly, R2-D2 will make a high pitch sound.

Control AT-ST 
Enter "CHICKEN" as a passcode. If you entered the code correctly, R2-D2 will 
make a high pitch sound. Then, press Z to maneuver the head of the AT-ST.
Press A to accelerate, and press B to shoot.

Fly the Millennium Falcon 
Enter "FARMBOY" as a passcode. If you entered the code correctly, R2-D2 will make a high pitch sound.

Fly a TIE Interceptor 
Enter "FARMBOY" as a passcode. Then, enter "TIEDUP" as a passcode. If you 
entered the code correctly, R2-D2 will make a high pitch sound. Now at the ship 
selection screen, highlight the Millennium Falcon and hold Up on the 
Analog-stick for two seconds. The screen will move behind the Millennium Falcon 
and allow the TIE Interceptor to be selected.

Fly a car 
Enter "KOELSCH" as a passcode. If you entered the code correctly, R2-D2 will 
make a high pitch sound. Then the V-Wing will be replaced with a 1969 Buick 
Electra 225 convertible at the ship selection screen.

Increase difficulty and use A-Wing on more missions 
Enter "ACE" as a passcode. If you entered the code correctly, R2-D2 will make a high pitch sound.

All power-ups 
Enter "TOUGHGUY" as a passcode. If you entered the code correctly, R2-D2 will 
make a high pitch sound.

Alternate radar display 
Enter "RADAR" as a passcode to indicate differences in altitude with various 
brightness. If you entered the code correctly, R2-D2 will make a high pitch sound.

Alternate title screen 
Enter "HARDROCK", "BERGOWE", or "WATZI" as a passcode. If you entered the code 
correctly, R2-D2 will make a high pitch sound. Return to the main menu, wait for 
the demo to begin, then press A to return to the main menu where Luke will have a different face.

Music test 
Enter "MAESTRO" as a passcode. If you entered the code correctly, R2-D2 will 
make a high pitch sound. Then, enter the "Showroom" screen from the options menu.

View development team photo 
Enter "BLAMEUS" as a passcode. If you entered the code correctly, R2-D2 will make a high pitch sound.

View intermission sequences 
Enter "DIRECTOR" as a passcode. If you entered the code correctly, R2-D2 will 
make a high pitch sound. Then, enter the "Showroom" screen from the options menu 
for a new option that allows the intermission sequences to be viewed.

View credits 
Enter "CREDITS" as a passcode. If you entered the code correctly, R2-D2 will make a high pitch sound.

Beggar's Canyon level 
Earn a Bronze medal or better in all missions to fly a T-16 Skyhopper through Beggar's Canyon on Tatooine.

Death Star Trench level 
Earn a Silver medal in all missions to fly in a trench on the surface of the Death Star.

Battle of Hoth level 
Earn a Gold medal in all missions to fly a Snowspeeder in the Battle of Hoth. 

Ship select 
Earn a Gold medal in the Battle of Hoth level to select most ships in any mission.