Unlimited money
At the main menu press up, down, up, up, up, left, left and then you should have
unlimited money
Get hummer to drive
Type humall in secret cheat area
Unlock Police Car
Write in 'Minibus' at the secret code screen.
Unlock Ute
Type in 'Sedan' in the secret code screen.
Invincibility
Enter "INVINCIBILITY" at the secret code screen
Don't have to pay money for damage after
restart
When on Smash 4$ when you start a race and have damage but want to go back to
the main menu first restart it to where no damage then go back to the main menu
and you won't have to pay nothing
Get easy points
If you are on a trial, where the way crosses another way, try to hit a crossing
car on its side. If you are lucky the car will start
spinning, and rolling. (Sometimes also looping)
Get free cars
When you have saved your Smash 4$ game, go into the garage-menu, and buy a very
expensive car, and use all your money to upgrade it. Now save the car, and turn
of your PSX, or go out to the main menu. Now your car will be playable when you
play Battle.
More points
The best way to get enough points is to spin the other cars. Especially when
there are more cars around, so they start sort of a chain reaction. This way
your car is not going to get damaged. Mass accidents are also cool, but it'll
hurt you!
500 extra points
Start a race and then restart it. Tap the triangle button before your car shows
up and you will get 500 extra points.