Extra Time To get +2 seconds, hit the bus stops booths that have Mr. Burns' picture on them.
Hide Thanksgiving character Set the system date to November 22, 2001 to unlock Thanksgiving Marge (dressed in a Pilgrim costume) under the "?" at the character selection screen.
Mission Skip Intentionally fail a mission five times and it can be skipped. This cannot be done on the final mission.
Hide New Year's character Set the system date to January 1 to unlock New Year's Krusty under the "?" at the character selection screen.
Hide car Finish all ten missions in mission mode to unlock The Homer car. The car is selectable in any mode by choosing Homer's picture at the car select screen.
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 Night Time At the options menu Hold L + R and press A, A, A, A. A sound will signal correct code entry.
No Map Display Hold L + R and press X, Y, Y, B at the options menu. If done correctly you will hear a sound.
Flat Characters Hold L + R and press B, B, B, B at the options menu. All the people (except the character you selected) will be flat. If done correctly you will hear a sound.
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 More Camera Views At the options menu Hold L + R and press B, B, B, B. A sound will signal correct code entry.
Hide Halloween character Set the system date to October 31 to unlock Halloween Bart (dressed in a Frankenstein costume) under the "?" at the character selection screen.
Get Nuclear Bus At the options menu Hold L + R and press B, B, Y, X. A sound will signal correct code entry.
More Money At the options menu Hold L + R and press Y, Y, Y, Y. A sound will signal correct code entry.
Mystery Clown Car Turn on the system without a disc. Change the date to New Years Day and you will get a Happy New Years Car that is driven by Krusty the Klown.
Stop Time Hold L + R and press B, Y, X, A at the options menu. Press Y to start, stop, and reset the timer. If done correctly you will hear a sound.
Get Smither's in Mr. Burns Car At the options menu Hold L + R and press B, B, Y, Y. A sound will signal correct code entry.
Slow Motion Hold L + R and press A, B, Y, X at the options menu. If done correctly you will hear a sound.
Get Overhead View At the options menu Hold L + R and press X, X, X, Y. A sound will signal correct code entry.
Disable all Active Codes Hold L + R and press Start, Start, Start, Start at the options menu. If done correctly you will hear a sound.
Get 2D Characters At the options menu Hold L + R and press X, X, X, X. A sound will signal correct code entry.
Hide Christmas character Set the system date to December 25 to unlock Christmas Apu (dressed in a Santa costume) under the "?" at the character selection screen.
Turbo Hold L + R and press A, Y, Y, A at the options menu. Hold and release X during game play for a turbo boost. If done correctly you will hear a sound.
