Press Left, Right, Left, Right, X at the map screen. A sound will confirm correct code entry. Enabling this code will prevent the training missions from being accessible.
All unarmed upgrades
Press Up, Down, Up, Down, X at the map screen. A sound will confirm correct code entry. Enabling this code will prevent the training missions from being accessible.
All upgrades
Press Up, Left, Down, Left, Up, X at the map screen. A sound will confirm correct code entry.
All weapon upgrades
Press Right, Left, Right, Left, X at the map screen. A sound will confirm correct code entry.
Bandit Never Been Apprehended mission
When the street crime mission is to bust the criminal 'Bandit Never Been Apprehended' be ready to fire. Every time he pretends to surrender, he will fire. If you do not want the Good Cop rating to go down, take out your guns and wait for him to pretend to give up and fire at you once, so that you have a reason to kill him.
Blow Up Bad guys' Cars Easy
Whenever you are chasing down a perps car, whether it is A street Crime or Mission, there is one easy way to blow up their car. While chasing your Perp Get Behind them fairly close. Go to Precision aiming mode, and aim toward their liscence plate or in that are. Shooting here will cause the car blow light fire and if it is a regular sized Vehicle (not a truck or Tractor Trailer) It will flip over and be destroyed. This Works better with the better guns and aiming you have. Also be aware that is you are on a street crime, if the perp gets out and surreneders, he/she will catch fire and die.
Boost
Hold Up and press X(3) at the map screen. A sound will confirm correct code entry.
Break fence
If you are stuck behind a fence that can be broken but do not have a car to break it with, Run at it and press Circle. This will cause you to dive through the fence, breaking it and freeing yourself.
Control title screen
Do the following at the title screen to the change the background. Press Right Analog-stick Left or Right Analog-stick Right to move the background horizontally. Press Right Analog-stick Up to advance time. Press L2 or R2 to change the color saturation.
Damage multiple enemies
When fighting multiple enemies, kicking will damage more then one when you get the chance. Also, you can send enemies flying at other ones. This will damage the one who just got another person thrown at them.
Deadly knife throw
In some situations when a enemy drops a knife, you can pick it and throw it. If thrown correctly, it will impale their forehead, killing them.
Defeating General Kim
When fighting General Kim, use a low kick followed by a block or another kick. When he is stunned, press Circle, Square, X, Triangle to perform a super attack which will do more damage than a normal grapple. It is possible to roll through the railing once it is broken.
Defeating Wu's dragon
When the dragon is about to use his fire attack, use you manual aim to shoot it in the mouth, thus avoiding its fire and tail attacks. Do not bother trying to shoot him while he is swimming in the lava.
Defeating zombie during Wu's mission
After beating up the chefs, a zombie will appear. Go near a stove and kick it. Hopefully, you have not destroyed it while fighting the chefs. The stove will explode and both of you will catch fire. The zombie will get greater damage than you. Repeat this with the second stove. If the zombie is still alive, knock him into the fire. It is not possible to kill the zombie with physical attacks.
Driving maneuvers
The following maneuvers only work after they have been unlocked.
Peel out - Hold X + Square, then release Square.
Rapid stop - Press Left, Right, or Down + Square(2), then hold Square.
P.I.T. maneuver - Ram the rear corner of the car.
Downshift - Press Down + X(2).
90 degree turn - Press Left or Right + X + Circle.
Back switchblade - Press Left or Right + Circle(2).
Forward switchblade - Press Left or Right + Circle(2).
Two wheels - Press Left, Right, Left, X(2).
Nitro boost - Press Up + X(3).
Enter symbols on license plate
When entering your name on the license plate when starting a new game file, hold L1 + R1 and tap the D-pad Left or Right to input symbols.
Escaping car pursuits
When you are supposed to flee from other cars shooting at you, look for big open spaces like the Staples Center parking lot and drive through them. The people chasing you will stay on the road and go all the way around, giving you a good chance to escape. To escape easily while in pursuit, drive to the nearest highway. Try to get a good lead from the enemies before you do this. Drive up the branch of the highway, and keep straight. Do not leave the highway. Enemies are not able to get on the highway when you do this. They stick to the main road. Keep straight and eventually you will gain your points and end the mission.
Get past fence
When in a blocked off place with a fence on the other side, go up to it and face it. Do not press any buttons. The game will put you back on the other side within five seconds. It is easier to do this than hit the fence and not get through.
Glitch
Floating corpse
To make dead bodies float, run over someone while they are alive to where their bodies are on top of the car. Make sure that they are dead. Then, back up slowly and they will stay floating.
Greater car mass
While in a car, display the map screen. Press Down(3), X at the map screen. A sound will confirm correct code entry.
Hint-Blow up cars easily
Drive up behind a car and hold R1 to go into 'bullet time'. Then, aim at the license plate and fire. Most of the time it will take a single shot. For cargo trucks, aim under the passenger side and slightly to the back and fire. This makes stopping street racers and other people easy.
Impound garage cars unlocked
Press Up, Right, Down, Left, Up, X at the map screen. A sound will confirm correct code entry.
Increasing Cop rank
Go around checking everyone for drugs and weapons to get +1 Good Cop. Go to the Hancock Park area in the middle of the map. On a street corner at 2nd and Citrus Ave., you can frisk just about anyone close to or moving to the intersection and almost always finds drugs or weapons on them. To increase your Good or Bad Cop rating easily, replay a stealth mission and choose your attack accordingly.
Just for fun
This isn't really a cheat, but its fun, and makes for a classy on-foot escape. If you run towards the hood of a car, and press triangle, Nick will slide down the hill on his butt.
Land Glitch
If you get stuck in land and you cant get out or you're lost, just put the controller down and (3 seconds later) TA DA! You're on the road!
Lesser car mass
While in a car, display the map screen. Press Up(3), X at the map screen. A sound will confirm correct code entry.
Master code
Press Up, Right, Down, Left, Up, X at the map screen. A sound will confirm correct code entry. All bonuses will be unlocked. This code also disables upgrade missions.
More damage
When an opponent is dazed, you can hit them hard into the wall with a finisher to do even more damage.
Movie reference
In the game, there is a billboard that reads 'True Crime Streets Of L.A. The Movie, Fall 2005'.
Play as a bum
Enter B00Z for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as a commando
Enter M1K3 for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as a gangster
Enter TFAN for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as a street punk
Enter MNKY for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as a SWAT member
Enter 5WAT for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as an Asian worker
Enter HARA for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as Asian butcher
Enter PHAM for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as Asian high-roller
Enter MRFU for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as big biker
Enter HAWG for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as blindfolded smoking donkey
Enter JASS for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as champion boxer
Enter BRUZ for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as corpse
Enter J1MM for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as high ranking police officer
Enter FATT for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as Officer Johnson
Enter FUZZ for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as pimp
Enter P1MP for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as punk girl
Enter B00B for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as Snoop Dog
Press R1, L1, Up, Right, Left, Down, L3, R3, X, Square, Circle, Triangle at the map screen. A sound will confirm correct code entry. Immediately save the game before exiting to the main menu. Then, go to the mission selection screen and find a mission with Snoop's head at the top. Enter those missions to play as Snoop Dogg. To change back to Nick Kang, select a mission with Nick's head at the top.
Play as Snoop Dogg
Collect 30 bones during game play. They are marked in yellow on the map.
Play as tattoo lady
Enter TATS for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as your female boss
Enter B1G1 for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as your partner
Enter ROSA for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Play as your partner in lingerie
Enter HURT_M3 for a license plate. Hold L1 + R1 when entering the letters and selecting 'OK'.
Push pedestrian through wall or fence
When nick frisks a person next to a wall and they are clean, he will give them a push. They will pass through the wall and turn into a shadow. This also can be done with fences.
Restore health
Learn where the impound garages are located. When you get low on health, just visit the garage. You will not only get a fresh car, your health will be full again.
Rockstar spoof
There is a billboard similar to the one announcing the 2005 movie. However, this one has a J with a star similar to the logo for Rockstar games. The billboard also says 'Jockstrap' in a similar font to that of the Rockstar logo. The picture on the billboard that is of a pink jockstrap.
Roll through fences
When you are stuck behind a fence that cannot be broken, hit it to break some planks off. Then hold Toward the fence, press Triangle to roll into it, then fire. Repeat this fast enought until you roll through.
S.W.A.T. team
To get the S.W.A.T. team on you, kill a number of civilians (about thirty). The S.W.A.T. team will come after you in black vans.
Select car color
When entering a name on a license plate, hold L1 + R1, and press Left Analog-stick Up or Left Analog-stick Down to change the color of the strip below the plate. The color you leave it on when you enter the name is the color of your car.
Show Nick's coordinates
Press X, Circle, Square, Triangle at the map screen. A sound will confirm correct code entry.
Snoop lowrider hydraulics
Press Left or Right while in the lowrider on a Dogg Patrol special mission to change the ride height.
Spotting illegal drugs
To avoid wasting time frisking innocents, look for people that walk differently.
Stop carjackings
When your enemy is escaping by stealing a getaway car, kick them when they are pulling out the victim to stop them.
Unlock Bonus Movie
To unlock the bonus movie, get all three endings (poor, average, and best) by successfully passing all of the episodes, including the alternate ones. This extra movie is just for fun, and it shows Masterson and Nick doing something silly at the Gulag Club.