Marge The Pilgrim
Set the GameCube's date to November 22.

New Year's Krusty the Clown
Set the GameCube's clock to January 1.

Santa Apu
Set the GameCube's date to December 25.

Hidden Car
Beat all 10 Missions in mission mode to open "Homer: The Car Built For The Average Man" Just Click on Homer's picture in the car selection screen.

Cheat Codes
Enter these at the options menu. For all codes, hold the L and R triggers and press the following four button sequence. You will hear a bell if correct or a crow cackle if wrong.

Thanksgiving Marge     BBXX
Christmas Apu          BBXB
New Year Krusty       BBXY
Halloween Bart          BBXA
Helicopter camera       XXXY
More camera views     BBBB
Atomic bus            BBYA
Wireframe objects       BBAA
Smithers in Burns Car   BBYY
Soap-Box mini car      BBYX
Cardboard characters    XXXX
Horizontal split screen   YYYY
Nighttime mode        AAAA

Mission Skip
Intentionally fail a mission five times to have the option to skip the mission.
Note: This cannot be done on the final mission.

Extra Time
To get +2 seconds, hit the phone booths that have Mr. Burns' picture on them. You can get +2 seconds in the road rage levels by running over the Transit bus stops.

Extra Time And Money
Start in Evergreen Terrace. Drive straight ahead to the bus-stop and pick up the passenger. They will want to go to the Kwik-E-Mart. Drop them off and pick up the passenger just outside the Kwik-E-Mart. They will want to go to Smither's apartment. Drop them off and shoot down the alley opposite to pick up the passenger waiting at the end. They will want to go to Smither's appartment. The passenger will always be Martin, or the Sea Captain or Barney. Do a quick 180 and shoot down the alley to drop them off. Then, shoot up the alley again to pick up the next passenger, who will always want to go to Smither's apartment. Keep repeating this for easy money.