Enter the following code at the main menu: X, Triangle, Circle, Left, Up, Right, L2, R2.
Mini Gun
The mini gun is held by a patient who is behind the locked doors of a basement room in Mission 1: Asylum Aftermath. The keycard that unlocks the doors can be found during Mission 9: The Wang Fou Incident. It is called Orthmeyer’s Keycard and is on Lee Hong’s desk in his office on the second floor of his mansion. After finding the card, finish the mission and save your progress. Quit to the main menu and replay the first mission. Head to the northern section of the map and turn right in the small room with the red flashing sensor on the ceiling. Pass through the west door and dispose of the patient in order to collect the mini gun.
Weapons
Each weapon is unlocked by completing the mission and achieving the Silent Assassin rating.
When your health bar reaches zero the game will enter a black and white death sequence. If you are able to get four consecutive head shots on four different enemies during this sequence you will receive a small amount of health and return to the game.
Skip Level and Earn Secret Weapon
While playing enter R2, L2, UP, DOWN, X, L3, O, X, O, X.
Master Key
In the level "Traditions of the Trade" when you are on the 3rd floor you will eventually see a vacuum boy. When he opens a door to vacuum the room, go to the door and pick up the master key. You should then have access to most doors.
Ghost
In the level Traditions of the Trade, as soon as you enter the building if you go to the right of the staircase you will see a set of double doors. Go through them and pick the second set of double doors with a sign that says hotel wing closed. Once you do that go to room 106 or any of the other rooms around there closed off by police. Go into that room and walk into the bathroom then go into first person view and look in the mirror and you will see a ghost.
Reflection Ghost
When playing The Meat King's Party look at the loading screen of the slaughter house. You should see a faint skull. This skull is also on the pinball machines in Rotterdam Rendezvous.
See Lee Hong
In the level Asylum Aftermath, once you get the double Desert Eagles, keep going forward through the second set of doors until you get to the last tank with a body in it, then look to the right and there is a tank with Lee Hong written on it.
Getting the M60 Early
On the level "Deadly Cargo," it is possible to get the M60. If you don't get it here, you will have to wait until the 2nd to last level. Make your way to where the SWAT sniper is, on the building overlooking the ship. After the SWAT team attacks the ship, a helicopter will begin circling the area. If you shoot the gunner on the ship, he will fall to the ground with his M60. Make sure that you assassinate the target first and you kill the gunner while the helicopter is over a land area that you can reach.
Dual Gold Desert Eagles
After getting the key card from the Wang Fou Incident you most likely went to Asylum Aftermath to collect your Mini Gun. After that continue thru the level and when you get to a large room with windows and the door ahead... STOP! One patient will be walking around and on your right will be steps leading down to a door with red lights over it. Enter that room with the key card. Walk forward until you find the Gold Desert Eagle Guns right under your nose!
Ghost Blood in room 106
In traditions of the trade it was previously posted there was a ghost. But I found something else. This only worked in room 106, but after looking at the ghost in the mirror if you turn around you can see your target flicker red. When it does shoot and blood will spatter on the shower wall.
Various Codes
All 3 of these cheats are on level 2, The Meat Kings Party.
1.This is how to make a guy float. You start the mission and you start in the produce truck. The guy lying below you is only knocked out, shoot him and take his clothes. You can Either walk through stealthily, or do it my way. I like to wait till' one of the guests walks over to take a leak behind the pallets.Shoot him with your silenced silverballer5 and steal his clothes. Then, use the gun to shoot everybody on the porch, a chick might run in to tell a guard, shoot them. Walk in neutralize all guards and have fun.Take a right arter the stairs and go to the next door.Keep on walking straight to go into the minor party room. Keep on going forward , right, another forward, another right until you get in the room where a single guy is sleeping on the couch. Shoot him once in the stomach, and go around shooting everybody until you have to go to the exit point. Go back and look, He's floating in midair.
2.When you go to the second floor to neutralize the meat king, there should be one door where you go outside on the roof. Look closely and you will eventually find a ladder going higher.Follow the platform for a while until you can't go any farther.Look right and there is a window. Open it and you can see the meat King.Shoot him and finish up.
3.You start mission, walk through the first door and take a left. Keepp walking forward until you get in the big Meat room.get down beside the farther Butcher and there is a sniper rifle and ammo relatively close to him.Its a good idea to blend this with #2.
Level select
Press Square, Triangle, Circle, Left, Up, Right, L2, R2 at the main menu.
All weapons in training level
Start the training level, then enable the "Level skip" code. You will complete it with a "Silent Assassin" rank. Choose the training level again, and all the weapons in the game will be unlocked in the weapons storage area. This also will unlock the Cardboard Tube weapon.
Getting the M60 Early
On the level "Deadly Cargo," it is possible to get the M60. If you don't get it here, you will have to wait until the 2nd to last level. Make your way to where the SWAT sniper is, on the building overlooking the ship. After the SWAT team attacks the
ship, a helicopter will begin circling the area. If you shoot the gunner on the ship, he will fall to the ground with his M60. Make sure that you assassinate the target first and you kill the gunner while the helicopter is over a land area that you can
reach.
See Lee Hong
In the level Asylum Aftermath, once you get the double Desert Eagles, keep going forward through the second set of doors until you get to the last tank with a body in it, then look to the right and there is a tank with Lee Hong written on it.
The Bjarkhov Bomb: Humorous translations
Go inside of the submarine. There are some Russians wearing radiation suits working on the dirty bomb. The translation of what they are saying are the following four phrases:
"I hate this frozen wasteland."
"Careful! Are you trying to kill us?"
"Thank God there were 2 boxes of vodka on the plane this morning."
"Help me a little."
The Seafood Massacre: Phantom chef
Once the mission starts, run to the restaurant's basement where you cut the gas off. Grab the restaurant outfit and quickly run to kill the Red Dragon Negotiator. Dump him in the sewer, grab his amulet, and climb out. Next, head back to the basement. The guards will not know that you are not a restaurant employee. Cut the gas. Hide in the room where you got the outfit from and wait for the chef to go over to the gas thing. Quickly, yet quietly, exit the room and get behind the Chef. Note: Make sure you have the syringe out before you walk out the room. Just when he turns his head and spots you, stab him with the syringe. If done correctly, he should stand up and slowly walk away, leaving you in the motion as if you stabbed him. He will walk out the door, and get knocked out there.
Traditions Of The Trade: Bleeding ghost
In the part where the ghost appears and goes into the room in the dark hallway, enter that room and go back into the shower. The ghost will appear by the back wall. If you shoot it, blood with splatter on the wall. If you missed him the first
time, just leave the room then return and he will reappear. You can do this as many times as desired. When you shoot him, it will seem as if time slowed down and speeds back up.
Traditions Of The Trade: Kill the Ghost
Go down to the hallway at the bottom floor of the hotel. You will see the ghost that walks through into a wall. Move to a dead plant in the corner of the hallway near to a locked door. Then, go back towards the hallway where you saw the ghost. Make sure you have your Fibre Wire out before continuing. Heading down the corridor, you will see the ghost who walks into the wall. Get your Fibre Wire ready then get behind the ghost before it disappears into the wall. If you are quick, you can strangle the ghost with your Fibre Wire, which now flickers on the ground. You can now drag the ghost around the hotel.
Traditions Of The Trade: See murder
Go to your map in the level. There is a point of interest in the corner of the second or third floor. There is police tape and a guard there. Kill the guard, sneak in, and you will find a dead man on the bed. Go into the bathroom to see a bathtub full of blood. There is a sawedoff shotgun in front of it that can help you if you do not have any guns.
Traditions Of The Trade: Showering
In room 202 on the second floor, there is a fat guard wearing black and sunglasses. Shoot him, then picklock the door he is securing. Sneak in without a gun and sneak silently. You will see a man in red Speedos taking a shower.