GTA : Vice City Stories

these are the classic "button pushers" codes but they do work.
Credit goes to UGO's Super Cheats

During gameplay enter the following codes to unlock the corresponding effect.

Get $250,000:
Up, Down, Left, Right, X, X, L1, R1.

Unlock Armor:
Up, Down, Left, Right, Square, Square, L1, R1.

Cars Avoid You:
Up, Up, Right, Left, Triangle, Circle, Circle, Square.

ALL Cars are Black:
L1, R1, L1, R1, Left, Circle, Up, X.

Unlock Chrome Cars:
Right, Up, Left, Down, Triangle, Triangle, L1, R1.

Commit Suicide:
Right, Right, Circle, Circle, L1, R1, Down, X.

Destroy ALL Cars:
L1, R1, R1, Left, Right, Square, Down, R1.

Guys Follow You:
Right, L1, Down, L1, Circle, Up, L1, Square.

Health:
Up, Down, Left, Right, Circle, Circle, L1, R1.

Never Wanted:
Up, Right, Triangle, Triangle, Down, Left, X, X.

Peds Attack You:
Down, Triangle, Up, X, L1, R1, L1, R1.

Peds Have Weapons:
UP, L1, Down, R1, Left, Circle, Right, Triangle.

Peds Riot:
R1, L1, L1, Down, Left, Circle, Down, L1.

Unlock Perfect Traction:
Down, Left, Up, L1, R1, Triangle, Circle, X.

Raise Wanted Level:
Up, Right, Square, Square, Down, Left, Circle, Circle.

Unlock Faster Gameplay:
Left, Left, R1, R1, UP, Triangle, Down, X.

Unlock Faster Clock:
R1, L1, L1, Down, Up, X, Down, L1.

Unlock Slower Gameplay:
Left, Left, Circle, Circle, Down, Up, Triangle, X.

Spawn Rhino:
UP, L1, Down, R1, Left, L1, Right, R1.

Spawn Trashmaster:
Down, Up, Right, Triangle, L1, Triangle, L1, Triangle.

Unlock Foggy Weather:
Left, Down, Triangle, X, Right, Up, Left, L1.

Unlock Overcast Weather:
Left, Down, L1, R1, Right, Up, Left, Square.

Unlock Rainy Weather:
Left, Down, L1, R1, Right, Up, Left, Triangle.

Unlock Clear Weather:
Left, Down, R1, L1, Right, Up, Left, X.

Unlock Sunny Weather:
Left, Down, R1, L1, Right, Up, Left, Circle.

Unlock 25% of MP Content:
Up, Up, Up, Square, Square, Triangle, R, L.

Unlock 50% of MP Content:
Up, Up, Up, Circle, Circle, X, L, R.

Unlock 75% of MP Content:
Up, Up, Up, X, X, Square, R, L.

Unlock 100% of MP Content:
Up, Up, Up, Triangle, Triangle, Circle, L, R.

Unlock Weapon Set 1:
Left, Right, X, Up, Down, Square, Left, Right.

Unlock Weapon Set 2:
Left, Right, Square, Up, Down, Triangle, Left, Right.

Unlock Weapon Set 3:
Left, Right, Triangle, Up, Down, Circle, Left, Right.


Hidden Balloon Rewards:
Finding and popping the following amount of balloons will unlock the corresponding weapons at your safe house.

Unlock Pistol:
Find and pop 10 balloons

Unlock Scorpion (SMG):
Find and pop 20 balloons

Unlock Stubby Shotgun:
Find and pop 30 balloons

... i have the game and have tried these and they all work