Unlock all weapons:
Press Triangle, Triangle, Square, O, R1, O, R2, X, X on the start screen
Dancing Agent 47
On the level "The Murder of Crows" there are three bars - Salsa, Rock and Blues.
Once you have acquired the appropriate costume for your bar of choice, go in and
stand amongst the dancers and then leave the controller alone.
After a few minutes 47 will start to get his groove on with the ladies and start
dancing. You can move the camera around to watch him but don't touch the
movement control or he will stop
Bring All weapons with you
Go to the start screen and press : Triangle, Triangle, Square, O, R1, O, R2, X,
X this cheat will allow you to have ALL weapons on a level
Unlock all stages:
Press Triangle, Square, square, Right, Down, Left, R2, X, X on the start
screen
Bonus Mission + Alt. Ending
SPOILER WARNING
You can access a extra level during the credits sequence as Agent 47 is being
laid to rest. Keep tapping up on the LEFT Analog Stick and he'll be revived.
Play through the bonus mission to get the hidden alternate ending
Free Cash:
This exploits a bug in restarting a replay mission, so it may sound confusing.
The idea is to capitalize on the reward you get for re-doing a mission better
than you did before, earning more cash. The positive balance is always
transferred into your account. Complete a level very poorly. Then, replay the
level and do as well as you can. Before you complete the mission, create a save
point near the end. When looking at the mission review screens, after your
reward is added, press B to return to the first screen and Y to
replay the mission. The game says you'll lose your progress, but you should
start at the save point you created before you escaped the mission. End the
mission again, and collect your reward again. Repeat.
Alternate main menu
Successfully complete the game to change the background of the main menu.
Intel at no cost
Purchase all the intel when a mission starts. Make a not of it, then pause game
play and choose to restart the mission. You will have your original starting
money, and the intel will now be available for purchase again even though you
know what it contained.
Newspaper headlines
After completing a level, the newspaper information varies depending on how you
did. If you did poorly, the paper will say so in the paragraph. If you shoot
very little and use mostly hand to hand it will say that there is not enough
information to make a ranked description of you. High accuracy states you are a
well trained marksman. Try doing the level differently to see different
headlines.
Requiem: Control ending sequence
On the final level "Requiem", Diana will give you the antidote to the death
serum. You will fade in and out of life (power bar rises and drops to the beat
of Agent 47's heart) while the credits roll. If you do nothing, the game ends.
However, if you press [R3] + [L3] + [Square] + [Circle] + [X] + [Triangle], you
will come back to life and your mission will be leave no witnesses.
Alternately, move the [Left Analog-stick] when Agent 47 is on the grave while
the credits are running
Get Down
In the mission 'A Murder of Crows', there are three different bars (Rock, Salsa,
Blues). You can score costumes that fit in at one of the bars. So, get to any of
the bars and whip out the corresponding costume, leave 47 on the dance floor for
a minute, and watch him shake, shake it.
Rat Club
In the mission "Curtains Down", head to the basement. There is a room with 3
rats. Kill them and one will drop a keycard. Proceed to the top floor and use
that card on the only locked door you find. Inside will be a bunch of rats
boxing and playing cards.
Get rid of the opera police and gards the easy way.
In the opera mission, go to the second floor. Follow the guard into the security room. Take him out with a silenced
pistol before he fires his gun. Take his gun and drag him into the security room. Turn off the lights in the room.
Equip the guards gun. Fire into the hall way. Get back into the room quick. Close the door. When the police come
they will open the door, so they won't shoot right away. Now have fun, it's like shooting fish in a barrel. Leave
no witnesses. When the guards and security stop coming, you will have killed around 90% of them. There will still
be two security officers guarding the mark, and one or two on the lower floor. You can just take them out, Hitman style
