Automatic Weapons Cheat
While low on explosive power, this class of arms features automatic weapons like the submachine gun and AK-47 along with the handgun, flamethrower and rifle. You can perform melee combat with the brass knuckles and knife while you set fire to cars and rivals with molotov cocktails. To access these weapons, you'll need to enter "R2, R2, R1, R2, L1, R2, left, down, right, up, left, down, right, up" on your controller during the game. Successfully entering the code will change your weapons to those in the automatic weapons class.
Rocket Launcher Weapons Cheat
The rocket launcher set of weapons includes not only the rocket launcher, but also the katana sword, python gun, shotgun, silence Uzi, M4, and sniper rifle. To unlock these weapons, enter "R1, R2, L1, R2, left, down, right, up, left, down, down, left" without pausing the game. If you enter the code correctly, you will have a fully stocked inventory of new weapons. When you find yourself out of ammo or if you've accidentally picked up a different weapon, input the code again to refresh your stock.
High-Level Guns Cheat
To cause massive destruction to the residents of Vice City, you can use the following code to unlock the most powerful weapons: Without pausing the game, enter "R1, R2, L1, R2, left, down, right, up, left, down, down down." Any guns you have in your inventory will be replaced with a chainsaw, grenades, python gun, shotgun, MP5, M4, minigun and sniper rifle. Repeat this code if you run low on ammo for a refill.
Gun-Toting Pedestrians
If you want to increase the challenge in ̶0;GTA: Vice City̶1; and always ensure there are new guns and ammo lying around, enter "R2, R1, X, triangle, X, triangle, up, down̶1; to give every pedestrian in the game a weapon. Killing them will yield pickups to keep your ammo full. Those who want more visually appealing pedestrians with guns can enter "right, L1, circle, L2, left, X, R1, L1, L1, X" to change everyone in the game into bikini-clad women with guns.