Unlock Race mode:
Complete all missions in story mode. 

Unlock additional free ride mode cars:
Break into a car during story mode to unlock it in Free Ride mode. 

Unlock Bigfoot truck in free ride mode:
Win first place in all races in racing championship mode. 

Car selection in free ride mode:
As soon as you enter free ride mode, you will start in a car with a reddish gate 
directly behind you. Drive forward so that you are in the street, then reverse right 
back to the location you started. A car selection screen will appear, and you can 
select any unlocked car.

Easy money:
Kill the men in the all black suits with the black hat (gangsters) to earn $500 each. 

Go into the country and speed in a fast car. 

Blow up cars for $100 each. 

Drive taxis to earn money. 

Shoot off tires:
Aiming at tires and shooting where the bolts are, in the middle. This works best 
with the Tommy gun. 

Quick gun:
While driving through the city, you will encounter many police officers. You can run 
one of them down and pick up his standard issued gun. Your wanted level will go 
up, but immediately diminish. This works best if there is only one police officer, on 
foot, with no police officer witnesses.

Killing people in black suits:
Walk behind them and shoot them. This works best with the sawed off shotgun. 

Lose cops quickly:
Get to a rail station, elevated rail station, or trolley. Get in and wait until your 
wanted level goes down. 

The most efficient way to evade the police is make a lot of turns. The best turns 
are in front of or behind another car or the trolley. The police will try to make your 
exact turn, but will run into the car or trolley. You can also make turns between 
light posts close to the curb if your car is small or short enough. This also works 
well during the first mission.

If you have a gun and the cops are after you, you can get rid of them by shooting 
them. This takes some practice, but it can be done. You have to be on foot. Shoot 
both cops until their weapons fall. Head shots work best. If you manage to kill both 
advancing officers, you will no longer be wanted. This works best if there is only 
one car after you (the offense does not matter). The more the cars, the more 
difficult it is.

An Offer You Can't Refuse: Lose the gangsters:
When you first start driving, go all the way down the road and take a right. Follow 
this road. This will lead you to where there is only a right turn. Take the turn. 
Looking left, there seems to be a small barrier blocking the ocean. At the 
beginning of the turn there is actually a hidden bottom where you can drive. If you 
slow down to about 50 or 60 miles per hour, drive over the barrier. By going slow 
enough, you can land at the bottom drive part. The enemy gangsters will not slow 
down. They will follow you over the barrier. If they have the correct angle or 
speed, they will fly into the ocean or land upside down. If you have not gone over 
the ocean or flipped over, there is a ramp where you can escape the gangsters 
and finish the level. Note: This may require a few attempts.

Créme de la Créme: Killing Morello:
When you get to the countryside, keep a distance from Morello's car. He will then 
pass the airport. Keep following him out to the bridge near the Lay-By. You will see 
that it is under construction. An intermission sequence where Tommy pushes 
Morello's car out over the bridge will begin, and the mission will be completed. It is 
of course funnier to play the airport mission, but this is much faster.

Créme de la Créme: Easy completion:
To easily complete the mission, just ride alongside Morello's limo. Sam and Paulie 
will shoot through the glass with their Tommy guns and kill Morello without having 
to enter the airport.

Just For Relaxation: Getting the cigar crates:
When the boss tells you he is going to the bathroom, follow him. He will walk up to 
a tree. Take out the crowbar you got from the truck driver then hit the boss. He 
will usually go down with one swing. Then, walk back to the cigar crates. The man 
with the Thompson does not know that the crate should not be touched. Then, just 
drive the truck back to Paulie and Sam. 

The Omeria: Save ammunition and time: 
When you go to find Frank's family, they are in a building. They are standing next 
to a phone. There is a man in the phone booth. He is calling the police because he 
heard gunshots. If you shoot him before the end of the phone call, the police will 
not be in the parking lot, and you can just drive away.

Ordinary Routine: Easier mission: 
You can save some effort by shooting the tires on the getaway car before you try 
to enter the hotel. It is much easier than trying to shoot them while driving at the 
same time. 

You Lucky Bastard: Take out snipers: 
When you enter the dock, get a truck and drive to the other entrance to the 
harbor. Nearby, there is a house with a man. Kill him. He has a US rifle, which you 
should use to shoot the round fuel containers near the crane towers. The snipers 
will not shoot you, and you will get to see a really great fireworks display. 

You Lucky Bastard: Thomson gun:
When you have to take Pauly to kill Segerio Morello and must escape instead of 
running, get out of the car and kill all of your enemies. Search all their bodies. 
From one of them, you will get a Thomson 1928 which is useful at the harbor. 

The Whore: Easy completion:
Your objectives in this mission are to kill the manager; tell the whore to leave 
town; and place a bomb and documents on the desk of the director's office. First, 
tell the whore to leave town. However, to do so, you walk in a lobby of a hotel 
without having any weapons out. There will be two security guards with weapons. 
When you walk in you will see stairs and the sign on the desk. To your right will be 
a doorway. Go through it and take a left without going into any doors, then take a 
left. Enter the first door on the left. There will be steel stairs for every floor. Go to 
the third floor. Take a right down a hallway. It will have a plant in the corner. Enter 
the first door on the left to find the whore. Then, go back down to the lobby. You 
cannot have any weapons out the entire time. When you are in the lobby, go 
under the stairwell in the corner where no one can see you. Press Up to take out 
your weapon. Then use the Right Analog-stick to aim at the person behind the sign 
at the desk. Kill him and the two men that will come up to you. After killing them, 
go behind the desk and enter the back room. There will be a green arrow pointing 
at a key. Press A to retrieve it, then go back to the steel staircase. Go to the top 
floor and take a right. Go down the hall half way until you reach another lobby. Kill 
the man on your left, then go to the other side. You will be facing a door with one 
on your left with the sign directory. Go in and kill the man in the black suit first. 
Then, kill the man in the white suit. After doing so, go in front of the desk and 
press A. After that, leave the room.

Make Traffic Vanish:
To clear up the roads ahead of you, you can make traffic vanish by simply looking 
in your rear-view mirror--hold DOWN on the right analog stick. This works best 
with cars at a distance and on the connecting bridges and tunnels.

Free repairs in Free Ride:
When you’re in the city and your car has crashed a number of times, you can 
return to where you started next to Salieri's Bar and choose any car. Then, just 
move forward onto the street and reverse back towards the gate and choose your 
first car. It will be back to normal with all its doors, windows, etc.

Killing gangsters :
The best way to kill the men in black is to walk behind them and shoot them with a 
shotgun. 

Baseball bat:
To get a baseball bat in free ride mode, someone will always have one in a taxi.