There is no single "Weapon Set 4" cheat code in GTA San Andreas (PS2). The game has three tiered weapon cheats (enter during gameplay):
| Weapon Tier | PS2 Button Combo | Weapons Included |
|---|---|---|
| Tier 1 (Thug) | R2, R2, L1, R2, Left, Down, Right, Up, Left, Down, Right, Up | Pistol, Silenced Pistol, Desert Eagle, Shotgun, Sawn-off, SPAS-12, Micro SMG, SMG, AK-47, M4, Rifle, RPG, Heat-Seeking RPG, Flamethrower, Minigun, Satchel Charges, Detonator, Spray Can, Fire Extinguisher, Camera, Night Vision, Thermal Goggles, Parachute |
| Tier 2 (Professional) | R2, R2, L1, R2, Left, Down, Right, Up, Left, Down, Down, Left | Tier 1 + Knife, Katana, Golf Club, Chainsaw, Dildo, Vibrator, Cane, Grenade, Tear Gas, Molotov, Sniper Rifle |
| Tier 3 (Psycho) | R2, R2, L1, R2, Left, Down, Right, Up, Left, Down, Down, Down | Tier 2 + Brass Knuckles, Baseball Bat, Shovel, Pool Cue, Flower (melee variants) |
Note: Cheats disable achievements (PS2 has none) but may flag "Cheats Used" on save. Enter slowly; a sound confirms success.
For specific weapons, use Tier 1 (all guns) or Tier 2/3 (adds melee/throwables). No "Set 4" exists.