One Hit Wonder mode
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Triangle, Circle(3), Left. A message will confirm correct code entry.

Sharpshooter mode
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Square(3), Down, Right. A message will confirm correct code entry.

Wussy mode
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Square, Left, Triangle, Up, Down. A message will confirm correct code entry. Enemies will be less accurate in this mode.

Enemies more accurate
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Triangle, Square, Left(2), Circle. A message will confirm correct code entry.

Precursor mode
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Up(2), Down(2), Up. A message will confirm correct code entry. This mode turns off all targeting cursors, which provides more challenge and a different appearance.

Hard boiled mode
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Triangle, Square, Left(2), Circle. A message will confirm correct code entry. Hard boiled mode increases challenge level significantly, especially when used with the Super Cop difficulty setting.

Unlimited health
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Square, Triangle, Left, Up, Right. A message will confirm correct code entry.

Unlimited Shadow Stamina
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Circle, Square, Triangle, Circle, Down. A message will confirm correct code entry.

Unlimited adrenaline
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Left, Right, Left, Circle, Square. A message will confirm correct code entry.

Unlimited armor
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Up(3), Square, Down. A message will confirm correct code entry.

Unlimited dual Guncons
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Triangle, Circle, Up(3). A message will confirm correct code entry.

Unlimited human shields
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Square, Triangle, Circle, Triangle, Square. A message will confirm correct code entry.

Powered-up punches and kicks
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Down, Circle, Left(3). A message will confirm correct code entry.

Double melee attack damage
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Circle(2), Up(2), Square. A message will confirm correct code entry.

Enemies disarmed
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Right, Square, Left, Circle, Triangle. A message will confirm correct code entry.

Ignored by enemies
On the "New Game" screen, just after the "Press Start" screen, hold L1 + L2 + R1 + R2 and press Triangle(2), Up(2), Triangle. A message will confirm correct code entry.

Mini-games
To unlock the mini-games, successfully complete the game under any difficulty setting.

Disarms
Every type of weapon has five disarms (Circle, Up + Circle, Left + Circle, Right + Circle, and Down + Circle). An exception is the shotgun, which Circle and Up + Circle. Note: Disable the "Random Disarms" option or you will not learn any new ones.

The disarms are held by one enemy on each level possessing guns. Go through the levels, disarming everyone possible. Keep tabs of who you were able to disarm in a particular room before you die. When you continue, you will know which ones are remaining to disarm until you check everyone. Then, move on, save, and repeat. There is a shotgun disarm on mission 2 after the Boss. There are fuve disarms for all weapons, including the shotgun. The enemies will only unlock disarms for the weapons they are using, and of course there are no disarms on the levels without guns. Always use cover, duck behind something, or wait around a corner and be patient. Eventually, they will approach closer. Press one of the Circle combos their fate is sealed. Draw them closer one by one and disarm them or take them hostage systematically, while never exposing yourself. The objective is to not get shot, or go down in a blaze of glory.

Defeating the helicopter for the last time
Immediately when the level begins, run up to the pillar in front of you for cover. Enter wall mode and equip Shadow as your weapon. Spin out to the left and kill the first man. Exit wall mode and wait until the second man comes at you, then kill him. There will be more men. Stand back and kill them from near the pillar. If one gets close enough, it helps to use him as a shield. After men stop appearing from the helicopter, equip your M4 and target the man across the room on the raised section of the level. Do not target anyone on the highest balcony. Run at him while firing. Be careful -- he has a rocket launcher. Run side to side. Also be careful not to run past the fountain. If you do, the helicopter will be able to shoot you. After killing that man, make sure no one else is appearing from the helicopter. Get the rocket launcher that is in front of the fountain. After that, equip your rocket launcher and run back to the point on the ramp where it starts to decline. This ramp is near the beginning and between the two pillars you started near. Manually aim at the helicopter from here. If you cannot hit it, move forward until you can. Do not miss with the rocket launcher, as it will take even longer to defeat the helicopter. Use every gun you have and all your ammunition on this. It does not do much, but it does work. After all your ammunition is used, go left and act as if you are going up the balcony stairs. Go up them to the first platform and get the pistol. The last man you have to kill will also be there. After you have killed him, run back to the ramp and shoot the helicopter with all your ammunition again. The pistol will appear again in the exact location. Get the pistol again. There will not be any more men. Go back to the ramp again. Shoot the helicopter with all your ammunition. Keep repeating this until the helicopter is defeated.

Defeating people without guns
To defeat people that do not have guns easier, keep blocking and dodging. If you do not dodge, you will still get hurt. When you are in the prison, you will learn how to reverse a grab. This allows you to avoid getting hurt when they grab you. When you reverse the grab, you will throw their arms in the air. This will leave them open to attack (punch, kick, grab, etc.). However, they can still block.

Chapter 1: All pistol disarms
When you start the level, a man will appear and try to shoot you. Lock on to him and use your dog (Shadow) to kill him. Shadow will bring his gun to you. When you kill him, another man by a crane will start to shoot. Lock on to him and shoot him with the gun you received. When you kill him, some pipes will fall down, making it appear as if you cannot get through. However, you can. Immediately when you enter, a man will come up behind you and say "Drop it!". You will throw down your weapon and turn around. When you turn around, you will not be able to move anymore --this will make it easier. You will be prompted to press Circle to disarm him. You can either do that, or do it with the Analog-stick. To get all of them, keep doing the level over or try it the old fashioned way.

Chapter 3: Spine break
When you are locked up "Iron Point" and are walking around in the hall only two or three people will be around. One of them will run up to you and say something. When you run away, they start to walk away. As they walk away you can go in back of them and do the grab. However, they move too much and you will end up breaking their back.

Chapter 3: Ledge in mine
If you are having trouble getting across the ledge in the mine after the prison break, go to the wall with the ledge and enter "wall mode". You will scoot across and will not perish in a darkened abyss.

Chapter 13: Voice access
Kill one of the men that has green on. You will see a man in yellow walk out in the open and run back. After a moment, the man in the yellow will run over to you. When he does this, and grab him. If another man runs with him, kill him and leave the man in yellow alive. Take him to give the voice authorization and you will be able to open gate. When you go over to the gate, a lot of men will be there. An easy way to kill all of them is to run up to them and grab one as a shield. The man you grab will get killed quickly. Keep doing this until only one person remains.

Chapter 14: Fahook uses bottle
After defeating Fahook once he goes into the back of the plane, when you get him very low on life he will drink from his bottle. At this time you should shoot the bottle out of his hands before he gains too much life. Doing this three or four times will destroy his bottle. Finish off his remaining life points and watch the intermission sequence.

Destroying the clown van in the cemetery
Use the canisters that explode and drop one on either side of the gate, in the corner between the wall and the gate. Do not throw it. Walk away and shoot the canister. Repeat the process until the van is destroyed. This may take a while, but it works.

Flaming Fisted Man warning
After defeating Flaming Fisted Man, the game restarts itself. This does not allow you to save your game, meaning that you either start a new game or continue fighting Flaming Fist Man repeatedly.

Dive into Mayor Pinnacle
When fighting Mayor Pinnacle, tap Triangle and dive into him. The game does not allow him to punch you while diving. After he gets tired from trying to hit you, get behind him and press Circle to choke the mayor.