To unlock Boss Rush Mode, have a gamesave of Metal Gear Solid Portable Ops on your memory stick, then start a new game with it.
Character passwords
Enter the password in the "Recruit" "Password" section of the main ingame menu.
Password
Effect
YLFSSVBCDLGO
Dengeki Playstation Magazine Soldier
TTOGZWSREYD
Arms Magazine Soldier
ZKUJZUYXJUH
Famitsu Magazine Soldier
Character Passwords
Enter the password in the "Recruit" "Password" section of the main ingame menu.
Password - Result
TTOGZWSREYD - Arms Magazine Soldier
Ground hold up position
If you find yourself in trouble or just on a special mission with either a constant Alert phase or a neutralize enemies objective, throw them down and point the gun at them to make them "Freeze". This will force them to go into the ground hold up position. This approach is recommended, as you do not need lots bullets to force your way through the stage. Also, if the Alert phase clears you can see how many stars the soldier has to deem whether or not you wish to recruit them to your cause. From there you can leave them and continue, knock them out for items, recruit, or try the next trick. Note: A stage can only play host to a certain number of soldiers; if all the soldiers stationed there are alive, no more can come out to shoot you. This is perfect if you want to recruit just a certain soldier type on a constant alert map. Also if there is a wandering soldier in the Evasion (orange) or Caution (yellow) phase that spots your subdued enemy, they will be brought back to their feet and the Caution phase will be brought up or reset. Finally, if you have a large number of soldiers held up like this, make sure you do not fire your gun on empty. They may just get angry with you.
Johnny
Find Johnny from Metal Gear Solid, Metal Gear Solid 2, and Metal Gear Solid 3 as a random prisoner in Infinity Mission.
Last mission: Soldier capture
Have a fair amount of Life Med so you do not lose your soldier. It also helps if you found body armor. First, find out where one of your reserve comrades is hiding. Run over to their box to lure the soldiers over. While a soldier with an "A" or better in CQC can slam enemies down to the ground and knock them out, this other method is recommended as it does not require high CQC skill, just technique:
Punch a nearby enemy and run behind them while they flinch.
Quickly press Square again to get them in the hostage hold.
Rapidly press Square to choke and fully knock them out (five star K.O.)
Note: They do not need to be directly in front of the box for it to work. There is some leeway in range, but for the last one you may gave to haul them to the box in the hostage hold, then knock them out. Finally, you must use the Codec because after subduing all enemies you are frozen and the mission is complete. To get all of them, make sure the final knocked out enemy's shoulders hit the ground before you press Select.
MPO, Soldier Passwords (US)
Enter them at the password screen.
Password
Result
BB6K768KM9
Alabama
XL5SW5NH9S
Alaska
ZHEFPVV947
Arizona
VNRE7JNQ8WE
Arkansas
WYNGG3JBP3YS
Black Genome
9GNPHGFFLH
Blue Genome
6MSJQYWNCJ8
California
W6TAH498DJ
Colorado
2N2AB3JV2WA
Connecticut
AJRL6E7TT9
Delaware
3W8WVRGB2LNN
Female Scientist 1
FUC72C463KZ
Female Scientist 2
UCAWYTMXB5V
Female Scientist 3
UZZQYRPXM86
Female Soldier 1
QRQQ7GWKHJ
Female Soldier 2
MVNDAZAP8DWE
Female Soldier 3
A44STZ3BHY5
Florida
FMXT79TPV4U8
Fox soldier 1
HGMK3WCYURM
Fox soldier 2
6ZY5NYW4TGK
Fox soldier 3
VD5H53JJCRH
Georgia
TGQ6F5TUHD
Green Genome
9V8S7DVYFTR
GRU Soldier
6VWM6A22FSS8
Gurlukovichâ's Soldier
TW7ZMZHCBL
Hawaii
RU8XRCLPUUT
Hideochan soldier
ADPS2SE5UC8
High Official
DVB2UDTQ5Z
High Rank Officer 1
84ZEC4X5PJ6
High Rank Officer 2
DTAZ3QRQQDU
High Ranking Officer 3
M4MSJ6R87XPP
High-Tech Soldier
XAFGETZGXHGA
Idaho
QYUVCNDFUPZJ
Illinois
L68JVXVBL8RN
Indiana
B8MW36ZU56S
Iowa
TYPEVDEE24YT
Kansas
LCD7WGS5X5
Kentucky
MNBVYRZP4QH
KGB Soldier
EHR5VVMHUSG
Louisiana
T5GYHQABGAC3
Maine
T8EBSRK6F38
Maintenance Crew Member 1
YHQU74J6LLQ
Maintenance Crew Member 2
MFAJMUXZHHKJ
Maintenance Crew Member 3
ZFKHJKDEA2
Male Scientist 1
QQ4N3TPCL8PF
Male Scientist 2
CXFCXF4FP9R6
Male Scientist 3
L2W9G5N76MH7
Maryland
ZLU2S3ULDEVF
Massachusetts
HGDRBUB5P3SA
Michigan
EEBBM888ZRA
Minnesota
TBF7H9G6TJH7
Mississippi
WJND6M9N738
Missouri
9FYUFV29B2Y
Montana
MCNB5S5K47H
Nebraska
Z9D4UGG8T4U6
Nevada
7NQYDQ9Y4KMP
New Hampshire
LGHTBU9ZTGR
New Jersey
RGJCMHNLSX
New Mexico
6PV39FKG6X
New York
QK3CMV373Y
Normal Soldier Long Sleeve
D8RV32E9774
Normal Soldier Long Sleeve Magazine Vest
N524ZHU9N4Z
Normal Soldier Short Sleeve
6WXZA7PTT9Z
Normal Soldier Short Sleeve Magazine Vest
JGVT2XV47UZ
North Carolina
T5LSAVMPWZCY
North Dakota
9FS7QYSHZ56N
Ocelot Female A
F94XDZSQSGJ8
Ocelot Female B
CRF8PZGXR28
Ocelot Female C
GE6MU3DXL3X
Ocelot Unit
AUWGAXWCA3D
Ohio
ZQT75NUJH8A3
Oklahoma
HKSD3PJ5E5
Oregon
PL8GVVUM4HD
Pennsylvania
7WRG3N2MRY2
Pink Genome
9CM4SY23C7X8
Red Genome
MMYC99T3QG
Rhode Island
X56YCKZP2V
Seal
ZR4465MD8LK
South Carolina
RY3NUDDPMU3
South Dakota
PHHB4TY4J2D
Tengu Soldier
TD2732GCX43U
Tennessee
QM84UPP6F3
Texas
A9KK7WYWVCV
Tsuhan soldier
2VXUZQVH9R
USSR Female Soldier A
HPMRFSBXDJ3Y
USSR Female Soldier B
QXQVW9R3PZ
USSR Female Soldier C
GMC3M3LTPVW7
USSR Female Soldier D
5MXVX6UFPMZ5
USSR Female Soldier E
76AWS7WDAV
USSR Female Soldier F
V7VRAYZ78GW
Utah
L7T66LFZ63C8
Vermont
DRTCS77F5N
Virginia
G3S4N42WWKTV
Washington
Y5YCFYHVZZW
Washington DC
72M8XR99B6
West Virginia
QJ4ZTQSLUT8
White Genome
K9BUN2BGLMT3
Wisconsin
C3THQ749RA
Wyoming
CE5HHYGTSSB
Yellow Genome
Skip the Codec call to capture
Bump your comrade's box while there is an enemy knocked out. The screen will turn black for a moment and the "Soldier Captured" message will appear. This works with multiple enemies; you can pile them high (for example, on Special Stage 16).
Standing hold up postion
This may require some effort with the "punch punch kick" combo, but it may be easier with a rifle or SMG. When an enemy is prone on the ground in the hold up posture, move toward the torso. After the kick or swing of your weapon, immediately press X to crouch. If done correctly, both characters will flinch and the enemy will be now be standing in the hold up posture. This is much easier than knocking them out to shake them or then waking them up just to hold them up again.
Taunts
Find all 68 entries on the soldier list, then complete an Infinity Mission round to unlock all sixteen taunts.
Tengu Soldier
To unlock the Tengu Soldier, play on any difficulty level (normal or above). Knock out the first Tengu Soldier you come across and carry him back to the truck unconscious. This will allow you to play as him.
