The Simpsons Skateboarding Cheats (PlayStation 2)

At the character select screen, hold down L1, L2, R1 and R2, then enter triangle, X,
circle, square.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Circle, Triangle, X,
Square.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Circle, X, Triangle,
Square.

At the character select screen, hold down L1, L2, R1 and R2, then enter X, triangle,
circle, square.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Triangle, Circle, X,
Square.

At the character select screen, hold down L1, L2, R1 and R2, then enter triangle, X,
square, circle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press X, Circle, Square,
Triangle.

At the character select screen, hold down L1, L2, R1 and R2, then enter X, triangle,
square, circle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Triangle, Circle,
Square, X.

All of these codes are entered at the character selection screen.  Hold down R1, R2, L1,
and L2, then enter any of the following codes:

  All Characters: circle, triangle, X, square
  Big-Headed Homer: circle, X, triangle, square 
  Tightie Whities Homer: triangle, circle, X, square 
  Big-Head Bart: X, square, circle, triangle 
  Gangster Bart: circle, X, square, triangle 
  Demon Marge: X, square, triangle, circle 
  Big-Head Lisa: square, triangle, X, circle 
  Gangster Lisa: square, triangle, circle, X 
  Big-Headed Nelson: triangle, square, circle, X 
  Ballerina Nelson: triangle, square, X, circle 
  MIB Otto: square, X, circle, triangle 
  Big-Headed Frink: square, X, triangle, circle 
  Groovy Frink: X, circle, triangle, square 
  Business Suit Krusty: circle, triangle, square, X 
  Big-Headed Wiggum: X, circle, square, triangle 
  Man-Eater Wiggum: triangle, circle, square, X

At the character selection screen, hold L1 + L2 + R1 + R2 and press X, Circle, Triangle,
Square.

At the character selection screen, hold L1 + L2 + R1 + R2 and press X, Square, Circle,
Triangle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press X, Triangle, Circle,
Square.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Circle, X, Square,
Triangle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Triangle, Square,
Circle, X.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Square, Triangle,
Circle, X.

Successfully complete the game with any character or collecting all items in Skatefest
with Chief Wiggum to unlock a cheat.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Triangle, X, Circle,
Square.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Triangle, Square, X,
Circle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Circle, Triangle,
Square, X.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Square, X, Triangle,
Circle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Square, X, Circle,
Triangle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press X, Triangle, Square,
Circle.

Finish in first place on two different Timed Trick Contest stages to unlock an additional
skater.

At the character selection screen, hold L1 + L2 + R1 + R2 and press X, Square, Triangle,
Circle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Square, Triangle, X,
Circle.

At the character selection screen, hold L1 + L2 + R1 + R2 and press Triangle, X, Square,
Circle.