Various Characters:

Set the system date to to following dates to get a secret holiday character listed under the ? at the character select screen

November 22, 2001
Jan 1
Oct 31
Dec 25

More Money:

At the options menu Hold L + R and press Y, Y, Y, Y. A sound will signal correct code entry

Get Night Time:

At the options menu Hold L + R and press A, A, A, A. A sound will signal correct code entry

Get Overhead View:

At the options menu Hold L + R and press X, X, X, Y. A sound will signal correct code entry

Get More Camera Views:

At the options menu Hold L + R and press B, B, B, B. A sound will signal correct code entry

Get 2D Characters:

At the options menu Hold L + R and press X, X, X, X. A sound will signal correct code entry

Get Nuclear Bus:

At the options menu Hold L + R and press B, B, Y, X. A sound will signal correct code entry

Get Red Soapbox car:

At the options menu Hold L + R and press B, B, Y, X. A sound will signal correct code entry

Get Viewable Collision Lines:

At the options menu Hold L + R and press B, B, A, A. A sound will signal correct code entry

Get Smithers in Mr. Burns Car:

At the options menu Hold L + R and press B, B, Y, Y. A sound will signal correct code entry

Get New Years Day Mode:

At the options menu Hold L + R and press B, B, X, Y. A sound will signal correct code entry

Get Christmas Mode:

At the options menu Hold L + R and press B, B, X, B. A sound will signal correct code entry

Get Halloween Mode:

At the options menu Hold L + R and press B, B, X, XA sound will signal correct code entry

Get Thanksgiving Mode:

At the options menu Hold L + R and press B, B, X, X. A sound will signal correct code entry

Get Homer Car:

Finish all 10 missions in mission mode. Go to Homers pic in the car select screen to get the car

More time:

hit phone booths that have a pic of Mr. Burns to get 2 seconds

Skip Mission:

Fail a mission 5 times to skip that mission (except for final mission)

Easy Cash$$$:

As you might know, the "Road Rage" bonus gets you $1000. In Evergreen Terrese, If you find Nelson, he is most likely to trigger the bonus. Since its a short trip it may be hard to destroy enough stuff. He usually wants to go to the gas station. Hit the shopping cart at the grocery store and the gas pumps at the gas station. Its done in a snap.

How to drive in buildings:

Ok. Go to the first road rage level {the one at the top of the level select screen}. Go and find a person that wants to go into the back of the Springfield school. Well its like a shortcut. Drive to the front doors of the school then youll be driving through the halls of the school and it also lets you achomplished the way to the back of the school. Pretty cool huh?