ok, in order to get to stauton island before completing the mafia missions, you must turn on the dodo cheat. Once you have the dodo cheat on, get a pretty fast car, like the police car or the car by the 8-ball shop. then, go to the bridge and get past the orange cone by slowly going through the right side. Once youre in, get in the middle of the bridge, and get ready to take off! Slam the accelerator and press up on the analog so the nose goes down, once you get to the very edge, where the brigde breaks, press down slightly so the nose goes up, you should make it all the way to the next side. Stauton Island is Awesome!!
Slow and fast gameplay
Slow - Press Triangle Up Right Down Square R1 R2
Fast - Press Triangle Up Right Down Square L1 L2
Free BF Injection
To get the BF Injection, the car that Joey Leone is seen working on during mission briefings, go to the telephone in Portland but dont pick up. Just go to the 2 buildings opposite to eachother but in the parking-lot. You can't miss it, it's not a normal looking car. NOTE: You must do this during the night.
Press Right, R2, Circle, R1, L2, Down, L1, R1 during gameplay. A message will confirm the code entry.
Hint on Flying the Dodo car:
Take the Dodo Car to the very end of the runway (or empty highway, If possible). Turn it around so its facing away from the edge of the road/runway. Hold X to build up momentum, while holding Up. Once you get enough speed, quickly hold Down. Once airborne, use normal controls to level out the car. Note: The dodo car is very difficult to fly (because there are no wings). This code may work with any car.
Indestructible/ Invincible Car
This takes a while, but is definitely worth it. On Portland, after you talk to El Burro of The Diablos, go the the line to start racing, but first you must line up tanks along the whole road. (For tanks push circle 6 times, then R1, L2, L1, Triangle, Circle, Triangle. Then, when one of the carshits it and flips over, you must flip it back over and bring it to your garage. That car will then be invincible.
Press Square, L1, Circle, Down, L1, R1, Triangle, Right, L1, X during gameplay. No confirmation message will appear on the screen. With this code you can shoot off pedestrians' arms, legs, and heads with some weapons such as the sniper rifle, assault rifle, or explosives with an increase in the overall amount of bloodleft behind. Note: Saving the game might make the effects of this code permanent.
Extinguish your car (without the fire truck)
Just Simply Press R2(2x), L1, R1, Left, Down, Right, Up, Left, Down, Right, Up while inside your vehicle. If done fast enough your car will be extinguished.
Note: The cheat above is the "Full Health Cheat".
Repair any car for free
Just park the car in the garage, walk out let the door close then walk back up to the garage and there will be a fixed car for FREE.
Get free shot gun
Go to ammo-nation store and after you buy a gun walk up to the clerk and try to point the gun at him the best you can because you can target him, kill him, he shoots back so do it fast and after you kill him walk up to the counter and you will get his shotgun.
Not a cheat , more of a hint. When in an emergency car ( cop car , ambulance car , fire truck ) or a taxi. Press the right analogue stick ( R3 ) and you can do a sub mission for extra cash
Up to 5 Cars in your Garage
In your garage is Staution Island you can only hold 2 cars...right? Well...there is a way to keep up to 5 cars in there at once!
Heres how you do it:
1.If you have 2 cars already in your garage, go get another one, and bring it to your garage.
2.Park it right in front of the garage with its nose practically on the garage door.(Don't worry this cheat will fix that dent)
3.Then get out of your car and walk to the garage door and when it opens, quickly jump back into your car and gas it!
4. The garage door will try to close on it, but it wont. Park it deep, so the garage door can still be closed.
5.Get out of the garage and presto, 3 cars in there now!
6.If you re-arrange your cars (sideways works well) you can fit 5 cars in your garage and it still closes, letting you have 5 nice cars ready to take out.
Yardie Lobo Shocks
In Staunton Island you can jack the Yardie Lobo, when you speed up and slow down the shocks drop and lower naturally, but if you use the right-analog stick the suspension rises and falls in whatever direction you push it. You can actually roll the car from a stopped position, try it it's fun. Oh yeah, you don't have to save it for your garage to repair your car, just back off so the door closes then get near it to open and your car will be repaired.
Get the tank
All you need is about 15 rockets and 15 grenades and some armor. Get a big truck after you get the stuff mentioned above and go the third level with the airport. Get two stars so the police will follow you to the back of the airport. Go to the Helipad with the police helicopter and get on top of it. Throw the grenades to destroy the police that will come below. Use the rockets on the pesky helicopters after you get full stars start watching the ground for tanks when they come throw a grenade to kill the guys and hurry and jump in. This is the easiest way I could figure out how to do it.
On portland city go to 8 balls BOMB SHOP then go right into the car sales and you will see a banchee car in a glass room smash the window with a car and hey presto you have a nice car
When you see the ROCKSTER billboard, there are usually some items nearby. On the 3 islands, hidden packages are usually found near the billboards. For every 10 hidden packages you find, you gain access to a new weapon located at your hideout, free of charge.
Get 45 kills in vigilante mode to unlock a police bribe that is available in your hideout.
To continue at a fast pace without fatigue, just TAP x instead of holding it down. This helps when trying to give your character EXERCISE so that he can run for a long period of time as well.
Successfully complete the Mafia missions to unlock the Buggy. Return to the Portland and go to the Diablo parking lot (where the mission phone is located) between 19:00 to 24:00 to find the same Buggy glimpsed in Joey's garage from the Mafia mission. It will appear in the same location & change color each time.