Here are some cheats and tips for the game The Simpsons: Hit And Run.
Fast cars:
Hold L + R at the options screen and press X(4). The sound of
a horn will confirm correct code entry.
Instant vehicle explosions:
Hold L + R at the options screen and press Y(2), X(2). The
sound of a horn will confirm correct code entry.
Very fast cars:
Hold L + R at the options screen and press Y(4). The sound of
a horn will confirm correct code entry.
All bonus cars:
Hold L + R at the options screen and press A, B, A, B. The sound
of a horn will confirm correct code entry. You must have a 100%
game completion.
Red brick car:
Hold L + R and press B(2), Y, X at the options menu. A sound will
confirm correct code entry. The secret vehicles normally found in
each level will now be a small red brick car.
Invincibility:
Hold L + R at the options screen and press Y, A, Y, A. The sound
of a horn will confirm correct code entry.
Super jumps:
Hold L + R at the options screen and press X(3), Y. The sound of
a horn will confirm correct code entry. Sound the horn by
pressing Z to jump extra high.
Display speedometer:
Hold L + R at the options screen and press Y(2), B, X. The sound
of a horn will confirm correct code entry.
Grid view:
Hold L + R at the options screen and press B, A, B, Y. The sound
of a horn will confirm correct code entry.
Alternate views:
Hold L + R at the options screen and press B(3), A. The sound of
a horn will confirm correct code entry.
Psychedelic view:
Hold L + R at the options screen and press Y, X, Y, X. The sound
of a horn will confirm correct code entry.
Phased view:
Hold L + R at the options screen and press Y, B, Y, B. The sound
of a horn will confirm correct code entry.
Alternate credits audio:
Hold L + R at the options screen and press A, X(2), Y. The sound
of a horn will confirm correct code entry.