PLAYER EFFECTS

Lower Wanted Level
PS3: R1, R1, Circle, R2, Right, Left, Right, Left, Right, Left.
Xbox 360: RB, RB, B, RT, Right, Left, Right, Left, Right, Left..

Raise Wanted Level
PS3: R1, R1, Circle, R2, Left, Right, Left, Right, Left, Right.
Xbox 360: RB, RB, B, RT, Left, Right, Left, Right, Left, Right.

Drunk Mode
PS3: Triangle, Right, Right, Left, Right, Square, Circle, Left
Xbox 360: Y, Right, Right, Left, Right, X, B, Left

Explosive Melee Attacks
PS3: Right, Left, X, Triangle, R1, Circle, Circle, Circle, L2
Xbox 360: Right, Left, A, Y, RB, B, B, B, LT

Fast Run
PS3: Triangle, Left, Right, Right, L2, L1, Square
Xbox 360: Y, Left, Right, Right, LT, LB, X

VEHICLE SPAWNS

Buzzard (Helicoptor)
PS3: Circle, Circle, L1, Circle, Circle, Circle, L1, L2, R1, Triangle, Circle, Triangle
Xbox 360: Press B, B, LB, B, B, B, LB, LT, RB, Y, B, Y

Caddy (Gold Cart)
PS3: Circle, L1, Left, R1, L2, X, R1, L1, Circle, X
Xbox 360: B, LB, Left, RB, LT, A, RB, LB, B, A

Comet (Sports Car)
PS3: R1, Circle, R2, Right, L1, L2, A, A, Square, R1.
Xbox 360: RB, B, RT, Right, LB, LT, A, A, X, RB.

Duster (Biplane)
PS3: Right, Left, R1, R1, R1, Left, Triangle, Triangle, X, Circle, L1, L1
Xbox 360: Right, Left, RB, RB, RB, Left, Y, Y, A, B, LB, LB

Limo
PS3: R2, Right, L2, Left, Left, R1, L1, Circle, Right
RT, Right, LT, Left, Left, RB, LB, B, Right

Rapid GT (Convertible Sport Car)
PS3: R2, L1, Circle, Right, L1, R1, Right, Left, Circle, R2
Xbox 360: RT, LB, B, Right, LB, RB, Right, Left, B, RT

Sanchez (Dirt Bike)
PS3: Circle, X, L1, Circle, Circle, L1, Circle, R1, R2, L2, L1, L1.
Xbox 360: B, A, LB, B, B, LB, B, RB, RT, LT, LB, LB.

Stunt Plane
PS3: Circle, Right, L1, L2, Left, R1, L1, L1, Left, Left, X, Triangle
Xbox 360: B, Right, LB, LT, Left, RB, LB, LB, Left, Left, A, Y

Trashmaster (Garbage Truck)
PS3: Circle, R1, Circle, R1, Left, Left, R1, L1, Circle, Right.
Xbox 360: B, RB, B, RB, Left(2), RB, LB, B, Right.

World Effects

Change weather - rotates through thunder, clear, and snowy weather.
PS3: R2, X, L1, L1, L2, L2, L2, Square.
Xbox 360: RT, A, LB(2), LT(3), X.

Slidey Cars
PS3: Triangle, R1, R1, Left, R1, L1, R2, L1
Xbox 360: Y, RB, RB, Left, RB, LB, RT, LB

Slow Motion - Enter up to four times to increase the effect. Fifth entry cancels effect.
PS3: Triangle, Left, Right, Right, Square, R2, R1
Xbox 360: Y, Left, Right, Right, X, RT, RB

Do these even work? Can anyone confirm?