During gameplay, press the following:
 
Get health: BLACK, BLACK, L, R, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, RIGHT, 
UP 

Get armor: BLACK, BLACK, L, WHITE, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, 
RIGHT, UP 

Get all weapons: BLACK, BLACK, L, BLACK, LEFT, DOWN, RIGHT, UP, LEFT, 
DOWN, RIGHT, UP 

Get money: BLACK, BLACK, L, L, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, RIGHT, 
UP 

Change clothes: RIGHT, DOWN, LEFT, UP, L, WHITE, UP, LEFT, DOWN, RIGHT 

Increase wanted level: BLACK, BLACK, L, BLACK, LEFT, RIGHT, LEFT, RIGHT, 
LEFT, RIGHT 

Decrease wanted level: BLACK, BLACK, L, BLACK, UP, DOWN, UP, DOWN, UP, 
DOWN 

Pedestrians riot: BLACK, R, Y, A, WHITE, L, UP, DOWN 

Pedestrians attack you: DOWN, UP, LEFT, UP, A, R, BLACK, L, WHITE 

Enable gore: X, L, B, DOWN, L, R, Y, RIGHT, L, A 

Improve car handling: R, L, BLACK, L, LEFT, R, R, Y (then press LEFT STICK to 
jump when inside a vehicle) 

Invisible cars: L, L, X, BLACK, Y, L, Y 

Get Rhino tank: B, B, B, B, B, B, R, WHITE, L, Y, B, Y 

Clear weather: L, WHITE, R, BLACK, BLACK, R, WHITE, Y 

Cloudy weather: L, WHITE, R, BLACK, BLACK, R, WHITE, X 

Foggy weather: L, WHITE, R, BLACK, BLACK, R, WHITE, A 

Rainy weather: L, WHITE, R, BLACK, BLACK, R, WHITE, B 

Faster game play:
Press Y, Up, Right, Down, X, L, White during game play. A message will confirm 
correct code entry. Repeat this code to increase its effect. 

Slower game play:
Press Y, Up, Right, Down, X, R, Black during game play. A message will confirm 
correct code entry. Note: This also continues the effect of an adrenaline pill.

Destroy all cars:
Press White, Black, L, R, White, Black, Y, X, B, Y, White, L. A message will confirm 
correct code entry. 

Flying car (low gravity):
Press Right, Black, B, R, White, Down, L, R during game play. A message will 
confirm correct code entry. Accelerate and press Up to fly.