Hidden Message.

Select the Evergreen Terrace Level.

Drive to Springfield Elementary.

Now..carefully drive to the window where Bart usually writes on the chalkboard in the opening theme to The
Simpsons.

It may take a moment, but position yourself just right,(Usually at an angle is best for me) and it will read, ''This in not a clue, or is it?''

Contributed by: Tim the Enchanter 55 

Hidden Car

Complete all 10 missions in mission mode to unlock ''Homer: The Car built for the Average Man.'' This car is selectable in any mode by clicking on Homer's picture in the car select screen.

Contributed by: mflorian 

Secret Holiday Characters

If you set the PS2's internal clock(from the main menu) to the following dates, you can get secret characters-
10/31/01-Halloween Bart
11/22/01-Thanksgivng Marge
12/25/01-Christmas Apu
1/1/02-New Year's Barney

Contributed by: acr 

Skip Mission Levels and still get the Homer

After you fail a mission mulitple times, you will be given a skip option at the restart menu. Skipping will not prevent you from getting the Homer, as long as you beat Mr. Burns in Mission 10.

Contributed by: MultiBlend 

Cheat Codes

Go into Options menu and hold L1 + R1 and press:

Contributed by: DrPoo, ctrdragon, Bob Sasquash, Dark Shadow X, Distal_Pistol, Sambo, Robshi, DivineKnight, diablo2468, Simpsonman, jld722, Darth Pinky, Tails. 

Use New Years Krusty

To drive as New Years Krusty (no matter what the date) go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, X, Y

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Extra Camera Angles (Alternate)

To enable extra camera angles, go to the options menu on the main screen. Hold down the L and R buttons simultaneously, and enter this code:

B, A, A, A

There should be a sound afterwards if you entered it correctly.

Contributed by: Mikeyswen79 

Homer's Secret Ride

Complete all 10 missions on mission mode. Then select Homer to use his new car.

Contributed by: GCMasta 

Unlock Frankenbart

To unlock a Halloween Bart Simpson, set your GameCube's date to 10/31. Bart will appear as Frankenstein on the character select screen (under the ? category).

Contributed by: GCMasta 

Unlock Marge the Pilgrim

To see Marge all dressed up like a Pilgrim, set your GameCube's date to Thanksgiving day (November 22). Marge will be selectable at the character select screen.

Contributed by: GCMasta 

Unlock New Year's Krusty the Clown

To unlock a special holiday suit for Krusty, set your GameCube's clock to January 1. Krusty, in his spiffy duds, will be selectable from the Character Selection screen.

Contributed by: GCMasta 

Unlock Santa Apu

To see Apu dressed as Santa Claus, set your GameCube's date to December 25. The jolly Kwik-E Mart owner will then be available on the character select screen.

Contributed by: GCMasta 

Skip Missions

Missions 1 through 9 can be skipped if you fail them 5 times. The last mission, however, cannot be skipped. Also note that skipping the missions does not prevent you from getting your reward, The Homer.

Contributed by: hand of g0d 

Use Burns' Car

To drive as Smithers in Burns' Car go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, Y, Y

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Use Nuclear Bus

To drive as the Nuclear Bus go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, Y, A

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Use "Box" Car

To drive as a small red box with no driver go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, Y, X

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Use Thanksgiving Marge

To drive as Thanksgiving Marge (no matter what the date) go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, X, X

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Use Halloween Bart

To drive as Halloween Bart (no matter what the date) go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, X, A

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Use Christmas Apu

To drive as Christmas Apu (no matter what the date) go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, X, B

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

All Characters Are 2 Dimensional

To turn all of the characters into 2D, similar to cardboard cutouts go to the options screen and Hold in the L and R buttons and enter in the following code:

X, X, X, X

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Nighttime Mode!

To drive through the streets of Springfield at night go to the options screen and Hold in the L and R buttons and enter in the following code:

A, A, A, A

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Extra Camera Angles

To get additional camera angles, such as Top View and Look Mode go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, B, B

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Debug Mode

To enter a sort of debug mode, where all objects are surrounded by lines go to the options screen and Hold in the L and R buttons and enter in the following code:

B, B, A, A

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Slo-Mo Mode

To turn all of the characters into 2D, similar to cardboard cutouts go to the options screen and Hold in the L and R buttons and enter in the following code:

A, X, B, Y

You should hear a sound if done correctly.

Contributed by: Road Rage Freaks 

Turn off the map

Go to the options screen and hold in the L & R buttons while entering Y, B, B, X. You will hear the confirmation sound, and this will turn off the small map on the lower left corner of the screen.

Contributed by: hand of g0d 

Clear All Codes

To clear all the codes you have entered, click L and R at the options screen and enter:

Start, Start, Start, Start

You will hear a raven sound if the code is put in correctly.

Contributed by: AChadek 

Extra Paper Money (PAL only)

Hold down the L and R button on the options screen and then enter the following codes to unlock more Springfield Dollars: Y, Y, Y, Y

Contributed by: Joni 

Vertical Split Screen

Highlight ''Options'' and hold L and R, then press:

Y,Y,Y,Y

Contributed by: Dark Jedi Knight 

Get Blimp View

Enter Options screen and hold L and R and press X X X Y. You should here a sound if correct

Contributed by: mastaboog749 

Stop Watch

To enable the stop watch, go into the options menu. There, simultaneously hold the L and R buttons. While holding L and R, enter this code:

X, B, Y, A

This should enable the stop watch in both Road Rage mode and Sunday Drive mode.

Contributed by: Mikeyswen79 

Passcodes

Use these passcodes to affect their respective cheats.

Contributed by: aduckie