| Additional Multi-player Characters |
| Find the M-79 grenade launcher on the second to last level (New York Sewers) to unlock the following seven multi-player characters: Ninja Gabe, Scuba Lian, Unit 1 (armored trooper from the Bio-Lab Escape level), Dr. Elsa Weissinger, Uri Gregorov, Lawrence Mujari, and SWAT officer (helped in the New York Slums level). The M-79 is near the end of the level (in the parking garage). Near the top of the stairs is an open doorway into the parking garage, where a black van is driving past. Instead of exiting the stairwell at that location, keep climbing up the stairs. There will be five Agency operatives scattered on the landings above armed with silenced HK-5s, grenades, and M-79s. Use the M-79 to clear them out. The M-79 is on the top landing. |
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| Agency Computer Lab Multi-player Stage |
| In the second room at the start of the Agency Bio-Lab Escape level, (after receiving the incoming radio traffic) are two vents that you can crawl through. The one on the left is the correct exit out of the Bio-Lab. The other vent leads back the way you came toward the Operating Room where you overheard Dr. Weissinger in the previous level. Head down this second vent back the way you came from. When you exit the vent, there will be one Unit 1 trooper on the left in an alcove. Run past him down the U-shaped hallway which leads to the Operating Room. You should be able to see the autopsy table through the door. There are three more armored troopers in the operating theater, one low by the door and two on either side up in the theater seats. Roll into the room past the low trooper. If this is not done, when you get near the door he will run in front of it to block your path. Run immediately toward the table with the computer. Climb up on to the table, and then up onto the balcony (you will probably get shot up pretty bad while climbing up). Then, roll toward the center of the back wall and into a small room. There is an M-79 grenade launcher in this little room which unlocks the Agency Computer Lab map. Gabe will say "Got it" to confirm that it has been collected. You do not have to finish the level for the map to be unlocked. |
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| Bunker Multi-player Stage |
| Find the PK-102 in the Moscow Streets level. There is a point where two cars will try to run you over at the same time, and you have to leap and grab a pole above you to avoid them. After this happens, drop down, and go back and search the two newly crashed cars. Face the tail ends of the cars. The car on the right has the PK-102 inside. The cars are on fire, so search carefully. Additionally, after the cars crash an enemy will get out of each car. At least one of them has a M-79 grenade launcher. |
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| Caves Multi-player Stage |
| Find the binoculars in the Colorado Interstate 70 level. They are located behind the first closed door on your left that you reach. Press Triangle to open the door. This reveals a passage. Go left, open another door, and enter the room. The box containing the binoculars is in this room. |
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| D.C. City Park Multi-player Stage |
| Find the dirty laundry in the New York City Slums District level in one of the washing machines in the first Sniper Building of the level. This is the building that is similar to the slums district level in multi-player mode. |
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| Disco Underground Multi-player Stage |
| In the Disco 32 level, after killing the bodyguard on the catwalk, three more guards will run in the door. Kill all three before they can throw a grenade at you. None of them have flak jackets. When you kick open the doors to the next dance floor with big speakers in the corners, you will need to kill these three guards before the guard above you can throw a grenade. Save your BIZ-2 ammo for him, run to the right, and hide behind the speaker. Kill the two guards on the floor. As the guard above you runs around so he can throw a grenade, use the BIZ-2 for a head shot. He does have a flak jacket. |
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| End Level |
Pause the game and highlight the map option but do not press, hold down right, L2, R2, square, x, circle at the same time.
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| Find Air-taser |
| After you have gotten the transponder, head to the towering rocks to use it, stop right before you get there. You will notice 2 guys talking and kinda guarding where you need to use your transpoder. This is where you will find a strange small square rock. (About the size of Gabe, your character. Climb on to of the rock. Now turn around drop down and grab the OTHER side. You will see a platform. On it will be an air-taser. |
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| Find The H-11 |
| Go to the first area where you found Chance. That should be right beside a "WATERFALL". Go to the edge of the waterfall. Make sure you are on the side that Chance was/is on. Now turn around drop down and grab the edge that you were on. Now you should be hanging OVER A HOLE. IF NOT ALIGN YOURSELF TO WHERE YOU ARE. Finaly drop down. You should be standing in a cave. Inside you will find The H-11.(To get out just simply go to the edge of the cave and face the other side of of the waterfall, now turn around and jump up. |
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| Hard Mode |
| At the title screen, highlight the One Player option and press Square + Circle + L1 + R2 + Select + Up + X. |
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| How To Kill Archer |
To kill archer first get the gun in the helicopter, but if he shoots you first get the armor in the helicopter. After you've gotten the gun, shoot him until he is at the back of the helicopter where the blade is. If he hits the blade, he'll die. There's no other way to kill him.
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| Kill Archer at the very end of the C-130 Wreck Site level with one shot (head shot). It is recommended that you use the silenced sniper rifle to kill him because of its zooming capabilities. |
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| Mission Secrets, And What They Unlock |
Mission Secrets, and what they unlock
Mission 1 Colorado Rockies
When you find the H11 crate in the cave near the waterfall ravine you will unlock the "Colorado Rockies" arena.
Mission 3 Colorado Interstate 70
When you get the Binoculars out of the crate in the back room of the first tunnel you will unlock the "Caves" arena.
Mission 8 C-130 Wreck Site
Kill Archer with one shot as he rides the chopper (good luck) and you will unlock the "Jungle" arena. Also, if you beat this mission in less than 3 minutes you will unlock the Syphon Filter 1 characters for 2 Player mode.
Mission 9 Pharcom Expo Center
When you find the Girly Mag in the locker you will unlock the "Pharcom Incubator Lab" arena.
Mission 11 Moscow Club 32
If you kill all three body guards on the dance floor in the beginning before they toss grenades you will unlock the "Disco Basement" arena.
Mission 12 Moscow Streets
Get the PK-102 from one of the white cars that try to flatten you and you will unlock "Rhoemer's Bunker" arena.
Mission 13 Volkov Park
If you can get to the first car before the agent blows it up you'll find a Biz-2 inside. This will unlock "Surreal" arena.
Mission 15 Aljir Prison (Break-in)
If you can make it through the whole level without the crossbow you'll unlock the "Aljir Prison" Arena.
Mission 18 Agency Bio-Lab (Escape)
When you enter the Operating Room you will unlock the "Agency Computer Lab" arena. You get to the Operating room by entering the ventilation shaft that you exited last in the previous mission -not the second one that leads out into the hallway.
Mission 19 New York Slums
Find the Dirty Laundry in the washer in the burning building. This will unlock "D.C. City Park" Arena.
Mission 20 Slums District
If you make it to the top of the stairway in the parking garage you will find a crate with an M-79 inside. This will unlock the Syphon Filter 2 characters for 2 Player mode.
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| Mission Select |
| Pause the game, highlight the "Map" option, then hold Right + L2 + R2 + Circle + Square + X (simultaneously). Then, enter the options screen and choose the "Cheats" selection. |
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| Movie Theater |
| Pause the game, highlight the "Briefing" option, then hold Right + L1 + R2 + Circle + X (simultaneously). Then, enter the options screen and choose the "Cheats" selection. |
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| Pharcon Site Multi-player Stage |
| Find the girlie magazine in the Pharcon Lab, after you taze the guards. It is located after you go through the Mars exhibit. |
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| Prison Multi-player Stage |
| Complete the Aljir Prison Break-In level without using the crossbow. You will have to sneak and roll up to the first man before he makes it out in the open. Roll a lot, but do not roll into him. You also cannot run or he will turn around. You should be able to run up very close to the male guard and the female guard who chased down the second prisoner. The last guard turns and looks around quite a bit. Walk against the left wall, and hide behind the support. He will walk out past you, and then you can get him. |
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| Rockies Multi-player Stage |
| Find the H11 sniper rifle on the first level (Colorado Rockies) to unlock the Rockies multi-player map. The H11 is near the waterfall and ice arch where you first meet Chance. Instead of jumping over the waterfall chasm, hang from the edge of the chasm and drop down into the tunnel. The H11 is in there. |
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| Super Agent Mode |
| Pause the game, highlight the "Weaponry" option, then hold L2 + Select + Circle + Square + X (simultaneously). If you entered the code correctly, you will hear a sound. Then, enter the options screen and choose the "Cheats" selection. |
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| Surreal Multi-player Stage |
| In Volkov Park, kill the first guard to the left very quickly before he destroys the car. After you kill him, collect the BIZ-2 in the car he did not destroy. |
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