Cars Fly:
Up, Down, L1, R1, L1, Right, Left, L1, Left
Unlike the old Dodo cheat you now have thrust whilst in the air which allows you to go faster than any airplane.

Traffic is Fast Cars:
Up, L1, R1, Up, Right, Up, X, L2, X, L1
All the cars are old and new sports cars.

Reduced Traffic:
X, Down, Up, R2, Down, Triangle, L1, Triangle, Left
Hardly any cars on the street and no pedestrians. Parked cars still spawn.

Full Weapon Aiming While Driving:
Up, Up, Square, L2, Right, X, R1, Down, R2, Circle
Using the right stick you are able to aim and shoot anywhere whilst driving including hanging out of the window to shoot over the roof.

Taxis Have Nitrous and L3 Bunny Hop without doing the Taxi missions:
Up, X, Triangle, X, Triangle, X, Square, R2, Right

Gangs Control the Streets:
L2, Up, R1, R1, Left, R1, R1, R2, Right, Down
No cops, regular citizens or traffic, only gunmen fighting in the streets.

Spawn Dozer:
R2, L1, L1, Right, Right, Up, Up, X, L1, Left

Lock Wanted Level:
Circle, Right, Circle, Right, Left, Square, Triangle, Up

Six Star Wanted Level:
Circle, Right, Circle, Right, Left, Square, X, Down

Infinite Lung Capacity:
Down, Left, L1, Down, Down, R2, Down, L2, Down

Orange Sky and Time Stopped at 21:00:
Left, Left, L2, R1, Right, Square, Square, L1, L2, X
The same sky as the early preview screens that were released

jetpack cheat: l1 l2 r1 r2 up down left right l1 l2 r1 r2 up down left right