The Simpsons: Road Rage Cheats (PlayStation 2)

At the options menu, hold L1 + R1 and press Square(4). If you entered the code correctly,
you will hear a sound. The screen will be split horizontally instead of vertically in two
player mode.

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

At the options menu, hold L1 + R1 and press X, Triangle(2), X. If you entered the code
correctly, you will hear a sound. Hold Gas + Brake + Handbrake while steering left or
right while in mid-air to execute the Road Rage Roll. Hold Gas + Handbrake while
stationary, then release Handbrake to execute the Speed Boost.

At the options menu Hold L1 + R1 and press
Triangle, triangle, Square, Square. A sound will signal correct code
entry

At the options menu, hold L1 + R1 and press X(4). If you entered the code correctly, you
will hear a sound.

At the options menu Hold L1 + R1 and press
triangle, Triangle, Circle, Square. A sound will signal correct code
entry

At the options menu Hold L1 + R1 and press
Triangle, triangle, Square, X. A sound will signal correct code entry

Multiple cheats can be entered simultaneously. Cheats are only active for the next game
session. All cheats will be disabled once you return to the main menu. When any cheat is
enabled, no money can be earned in Road Rage mode.

Successfully complete 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.

At the options menu Hold L1 + R1 and press X,
Circle, Triangle, Square.  A sound will signal correct
code entry

At the options menu, hold L1 + R1 and press Triangle(4). If you entered the code
correctly, you will hear a sound. Additional views will be unlocked at the pause screen.
To unlock another set of views, hold L1 + R1 and press Triangle, X(3) at the options
menu.

At the options menu Hold L1 + R1 and press
Triangle, Triangle, Circle, Triangle. A sound will signal correct code
entry

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.

At the options menu Hold L1 + R1 and press X, X,
X, X. A sound will signal correct code entry

At the options menu, hold L1 + R1 and press Start(4). If you entered the code correctly,
you will hear a sound.

At the options menu Hold L1 + R1 and press Square,
Triangle, Triangle, Circle.  A sound will signal correct
code entry

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.

At the options menu Hold L1 + R1 and press
  Square, Square, Square, Square. A sound will signal correct code entry

At the options menu, hold L1 + R1 and press X, Circle, Triangle, Square. If you entered
the code correctly, you will hear a sound.

This hint takes a long time to do and you have to set the difficulty to
hard to make it worth it.

Choose a character and go to evergreen terrace. As soon as you start
pick up the person on the right in front of you. He wants to go to the
Quick E mart. Drop him off and then pick up the person on the right of
the road near the Quick E mart. He will want to go to either Smithers or
Skinners. If it is Smithers the hint won't work. Go to Skinners and then
go down the street until you se Barney, the sea captain or the nerdy
kid. Pick them up and go through the back alley to smithers. Reverse and
pick him up again. Jeep going back and forth between the passenger and
Smithers apartment and your time will actually increase (if done fast
enough). I recommend that you turn around so you reverse into smithers apartment
because you run into a hill which helps stop you.

**Warning**

You can get unlimited money by doing this but the more money you get the
less time you get to deliver people to where they want to go. The
smithers Apartment mission will not fall below 8 seconds but you should
only need 4 if you take the back alley. Also some cars don't allow this
to work. Frink, Lisa and grandpa do work.

At the options menu, hold L1 + R1 and press Square, Triangle(2), Circle. If you entered
the code correctly, you will hear a sound.

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

At the options menu, hold L1 + R1 and press Triangle(2), X(2). If you entered the code
correctly, you will hear a sound.

At the options menu Hold L1 + R1 and press
Triangle, Triangle, Circle, XA sound will signal correct code entry

At the options menu Hold L1 + R1 and press
Triangle, Triangle, Triangle, Triangle. A sound will signal correct code
entry

At the options menu, hold L1 + R1 and press Circle(4). If you entered the code correctly,
you will hear a sound. All the people (except the character you selected) will be flat.

At the options menu Hold L1 + R1 and press
Triangle, Triangle, X, X. A sound will signal correct code entry

At the options menu, hold L1 + R1 and press Triangle(2), Square, Circle. If you entered
the code correctly, you will hear a sound.

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

At the options menu, hold L1 + R1 and press Triangle(2), Square, X. If you entered the
code correctly, you will hear a sound.

At the options menu Hold L1 + R1 and press Circle,
Circle, Circle, Circle. A sound will signal correct code entry

At the options menu, hold L1 + R1 and press Circle(3), Square. If you entered the code
correctly, you will hear a sound.

At the options menu Hold L1 + R1 and press X,
Triangle, Triangle, X.  A sound will signal correct
code entry

At the options menu, hold L1 + R1 and press Triangle(2), Circle, Triangle. If you entered
the code correctly, you will hear a sound. Alternately, set the system date to December
25 to unlock Christmas Apu (dressed in a Santa costume) under the "?" at the character
selection screen.

At the options menu, hold L1 + R1 and press Triangle(2), Circle, X. If you entered the
code correctly, you will hear a sound. Alternately, set the system date to October 31 to
unlock Halloween Bart (dressed in a Frankenstein costume) under the "?" at the character
selection screen.

At the options menu Hold L1 + R1 and press
triangle, triangle, Circle, Circle.  A sound will signal correct
code entry

At the options menu, hold L1 + R1 and press Triangle(2), Square(2). If you entered the
code correctly, you will hear a sound.

At the options menu Hold L1 + R1 and press Circle,
Circle, Circle, Square. A sound will signal correct code entry

At the options menu, hold L1 + R1 and press Triangle(2), Circle, Square. If you entered
the code correctly, you will hear a sound. Alternately, set the system date to January 1
to unlock New Year's Krusty under the "?" at the character selection screen.

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

At the options menu, hold L1 + R1 and press Circle, Triangle, Square, X. If you entered
the code correctly, you will hear a sound. There are no passengers, pedestrians, or
traffic in this mode. Press Horn to start, stop, and reset the timer.

At the options menu Hold L1 + R1 and press
triangle, triangle, Square, Circle. A sound will signal correct code
entry

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

In Springfield Mountains, go to the cemetery.

You should see another gate to your right.

Go inside the gate and drive into Mr. Burn's house to trash it. Take
that you transport tyrant!!!

At the options menu, hold L1 + R1 and press Triangle(2), Circle(2). If you entered the
code correctly, you will hear a sound. Alternately, set the system date to the third
Thursday in November to unlock Thanksgiving Marge (dressed in a Pilgrim costume) under
the "?" at the character selection screen.