While playing a game, press A, Down, Up, Black, Down, Y, L, Y, Left. If you entered the
code correctly, a message will appear. No pedestrians and only an occasional car will
appear on the streets. Parked cars will still spawn. Repeat this code to disable its
effect.

Go to the bar near Ganton but do not go in. Instead, look around the bar and close to
the bridge will be a drink machine. Go up to it and press Y to pay $1 for a drink.

Drive around and hit Ballas. When they are dead, pick up their guns then get back in your
car and find more. This will get you a lot of weapons very fast.

Successfully complete level 7 of the Quarry missions to get the Hunter Quarry asset and
Quarry Mission time-trials.