Grand Theft Auto: Chinatown Wars Command codes

Weapon Set 1
Enter this code at any time during single player mode (not on a pause menu) to get Weapon Set 1:

R, Up, B, Down, Left, R, B, Right

Weapon Set 1 includes these weapons with maximum ammo:

Grenades, Nightstick, Pistol, Minigun, Assault Rifle, Micro SMG, Stubby Shotgun