At the Title screen, highlight "One Player" and hold Square + Circle + L1 +
R2 + Select + Up + X.
During play, pause and highlight "Map." Now hold Right + L2 + R2 + Circle +
Square + X. After that, just enter the options screen and select "Cheats."
Pause the game, highlight the Map option, then hold Right + L2 + R2 + Circle
+ Square + X . If you entered the code correctly, you will hear a sound. Then,
enter the options screen and choose the "Cheats" selection. This allows the
current mission to be successfully completed.
During play, pause and highlight the "Briefing." Now hold Right + L1 + R2 +
Circle + X.
More Characters in Multi-Player:
Get to the top of the stairs in the parking garage and you will see a crate
that has a M-79 inside. This will unlock the more Syphon Filter 2 characters
to be played in 2 Player mode.
Goofies Characters for Multi-Player:
To unlock the "Goofies" characters, you must beat the 2nd level in
less than 3 minutes. One way to tell if your gonna get it or not is when you
tase Carter (the guard that controlls the electronic door), push the switch
2 times. Then run out through the 2 doors that you just opened electronically.
If you can see a guard walking away from you then you're pretty much guarenteed
to get it. When you get through the second electronic door just finish the level
like you normally would.
Some of the characters you get are: Corpse, Viral Subject, Monk, CBDC Agent,
and four others.
Unlock Multi-Player Maps:
There are also hidden items that must be picked up in the single player mode
to open some of the locked 2 player arenas. There are 20 Arenas in all. Some
of these hidden items, such as the Binoculars, are inventory items and others
such as the Girly Mag and Dirty Laundry cannot be seen in your inventory when
Rockies Multi-Player Map:
Item to find: H11 Sniper Rifle
To unlock the Rockies multi-player map; locate the H11 sniper rifle on the Colorado
Rockies level (1st level). The H11 is near the waterfall, where you first meet
Chance. Don't jump over the waterfall chasm! Instead, from the edge of the chasm;
drop down into the tunnel. The H11 is in there.
Rhomer's Bunker Multi-Player Map:
Item to find: PK-102
In the streets of Moscow; there will be two cars that try to run you down. Before
you see the cars, pull out your tear gas launcher. When the cars drive at you;
jump up and grab the pole, then fall down, turn around and shoot the three agents
with your teargas launcher. After this, go loot their items and search the tail
end of the cars to find the PK-102.
Pharcom Site Multi-Player Map:
Item to find: Girlie Mag
The girlie mag is in the Pharcom Lab. Use the taser on the guards. Go through
the Mars exhibit and there you are. *Note: The Girlie Mag will NOT show up in
your item inventory.
Agency Computer Lab Multi Player Map:
Item to find: M79
Get the M79 in the Operating Room in the Agency Bio Lab Escape level. The Operating
Room is the room where Elsa was talking about Liver cells with the two scientists.
To get there, go into the vent that you came in from, and follow the hallways.
The M79 is at the top of the Operating Room.
Caves Multi-Player Map:
Item to find: Binoculars
Find the binoculars on the Colorado Iinterstate 70 level. They are located behind
the first closed door on your left. Press triangle to reveal a passage. Go left,
open another door, and enter the room. The box containing the binoculars is
in this room.
D.C. City Park Multi-Player Map:
Item to find: Dirty Laundry
Locate the dirty laundry; in one of the washing machines in the first Sniper
Building of the New York City Slums District level.
Surreal Multi-Player Map:
Item to find: Biz-2
You must reach the white car in the Volkov Park level before the agent blows
it up and locate the biz-2 gun.
Ajier Prison Multi-Player Map:
Beat Ajier Prison Break In level, without using the crossbow.
Club 32 Disco Basement Multi-Player Map:
Kill the first 4 body gaurds before they throw a grenade. This is on club 32
Jungle Multi Player Map:
Kill Archer with one shot as he rides on the chopper. VERY HARD!
Syphon Filter 1 Characters in Multi-Player:
- Beat the C-130 Wreak Site in under three minutes to unlock a playable
character from the first Syphon Filter.
-In the New York sewer level, go to the top of the stairway in the parking garage,
past the M79 men and open the crate with the M79 in it.
Hidden Movie Theater:
During game play, pause the game and highlight the Briefing option. Then, hold
Right + L1 + R2 + Circle + X. You should hear a sound to confirm correct entry.
Enter the options screen and select Cheats to view movies.
Hidden Movie Theater (The old fashioned way):
Beat the game on the Easy difficulty setting to unlock all but four of the hidden
movies. Unlock the remaining four movies by beating the game on the Hard difficulty
Hidden Sniper Rifle:
When you are parchuting in at the begining of the game, you can land on the
rock behind the guy with the broken leg and get a H11 sniper rifle.
Get Ammo From Allies:
All you have to do is zap your friends with the hand tazer. This will knock
them out and then you can take their ammo.
Get The UAS_12 Weapon:
Pause the game and go into weaponry, highlight shotgun and press and hold down
L1 + R1 + Square + X + Select + Left (simultaneously) the weapon should appear
in the weaponry.
Fire the .45 through the tear gas launcher:
In the Moscow Streets level, after you zap the two Russian Militia guys who
are shooting at the agent and you grab the tear gas launcher from the back of
the police car; equip the tear gas launcher. Walk up to a wall, and then (standing
right next to it) fire the tear gas directly at the wall. Wait a second or two,
then pause the game, go to the weaponry screen, and equip the .45, and exit.
Upon resuming, you should notice that Lian is coughing and you are still holding
the tear gas launcher, despite the picture in the lower-right hand corner indicating
that the .45 is equipped. If you properly executed this procedure, you are now
able to fire the .45 through the tear gas launcher. (*Note: If
you change weapons or die, or even if you safely reach a checkpoint, you must
perform the code again. Also, this may work on other weapons, I'm not sure.)
Immortal Gabe in Multiplayer Mode:
Just when Gabe is dead and lying on the ground, shoot his head with a rapid-fire
weapon (such as HK-5, M-16,G-18...) before he vanishes.When he comes back there
should be no health or armor. ( Oh no !!!! Gabe is Immortal). *Note:
Second player must be gabe.
In any area where you can hang on a ledge this will work. In 2 player mode get
one person to hang low enough so that the other person can knife him. There,
you're a zombie! If you want to exit the stage you have to be in a level where
you can fall to death. So that the game goes back to normal mode. Oh yeah the
zombie can't do anything but run and climb and he's immortal.
Enable All Levels
Infinite Ammo At Weapon (Pick-up)
Stop timer Lvl 2
Stop timer lvl 3
Note: If you use any of the ammo codes with the Game Shark Pro, then
you must disable the codes at the main menu and enable them again once a game
Thanks to Revolution readers Python, Brent Dodson, erics2kwl, Aboo_Sayap, Faboulous
Fabian, Kiki Campillo, WIZARD, Ryan Quinney, erics2kwl, Mark Ridenoour, David
Cooper, Steve T, Justin, Joe Cesar Jeff Tataryn, jake williams and BrEaKaZ!