Enter one of the following passwords to unlock the corresponding MPO+ soldier:
| Soldier | Password |
| Alabama | BB6K768KM9 |
| Alaska | XL5SW5NH9S |
| Arizona | ZHEFPVV947 |
| Arkansas | VNRE7JNQ8WE |
| Black Genome | WYNGG3JBP3YS |
| Blue Genome | 9GNPHGFFLH |
| California | 6MSJQYWNCJ8 |
| Colorado | W6TAH498DJ |
| Connecticut | 2N2AB3JV2WA |
| Delaware | AJRL6E7TT9 |
| Female Scientist 1 | 3W8WVRGB2LNN |
| Female Scientist 2 | FUC72C463KZ |
| Female Scientist 3 | UCAWYTMXB5V |
| Female Soldier 1 | UZZQYRPXM86 |
| Female Soldier 2 | QRQQ7GWKHJ |
| Female Soldier 3 | MVNDAZAP8DWE |
| Florida | A44STZ3BHY5 |
| Fox soldier 1 | FMXT79TPV4U8 |
| Fox soldier 2 | HGMK3WCYURM |
| Fox soldier 3 | 6ZY5NYW4TGK |
| Georgia | VD5H53JJCRH |
| Green Genome | TGQ6F5TUHD |
| GRU Soldier | 9V8S7DVYFTR |
| Gurlukovich’s Soldier | 6VWM6A22FSS8 |
| Hawaii | TW7ZMZHCBL |
| Hideochan soldier | RU8XRCLPUUT |
| High Official | ADPS2SE5UC8 |
| High Rank Officer 1 | DVB2UDTQ5Z |
| High Rank Officer 2 | 84ZEC4X5PJ6 |
| High Ranking Officer 3 | DTAZ3QRQQDU |
| High-Tech Soldier | M4MSJ6R87XPP |
| Idaho | XAFGETZGXHGA |
| Illinois | QYUVCNDFUPZJ |
| Indiana | L68JVXVBL8RN |
| Iowa | B8MW36ZU56S |
| Kansas | TYPEVDEE24YT |
| Kentucky | LCD7WGS5X5 |
| KGB Soldier | MNBVYRZP4QH |
| Louisiana | EHR5VVMHUSG |
| Maine | T5GYHQABGAC3 |
| Maintenance Crew Member 1 | T8EBSRK6F38 |
| Maintenance Crew Member 2 | YHQU74J6LLQ |
| Maintenance Crew Member 3 | MFAJMUXZHHKJ |
| Male Scientist 1 | ZFKHJKDEA2 |
| Male Scientist 2 | QQ4N3TPCL8PF |
| Male Scientist 3 | CXFCXF4FP9R6 |
| Maryland | L2W9G5N76MH7 |
| Massachusetts | ZLU2S3ULDEVF |
| Michigan | HGDRBUB5P3SA |
| Minnesota | EEBBM888ZRA |
| Mississippi | TBF7H9G6TJH7 |
| Missouri | WJND6M9N738 |
| Montana | 9FYUFV29B2Y |
| Nebraska | MCNB5S5K47H |
| Nevada | Z9D4UGG8T4U6 |
| New Hampshire | 7NQYDQ9Y4KMP |
| New Jersey | LGHTBU9ZTGR |
| New Mexico | RGJCMHNLSX |
| New York | 6PV39FKG6X |
| Normal Soldier Long Sleeve | QK3CMV373Y |
| Normal Soldier Long Sleeve Magazine Vest | D8RV32E9774 |
| Normal Soldier Short Sleeve | N524ZHU9N4Z |
| Normal Soldier Short Sleeve Magazine Vest | 6WXZA7PTT9Z |
| North Carolina | JGVT2XV47UZ |
| North Dakota | T5LSAVMPWZCY |
| Ocelot Female A | 9FS7QYSHZ56N |
| Ocelot Female B | F94XDZSQSGJ8 |
| Ocelot Female C | CRF8PZGXR28 |
| Ocelot Unit | GE6MU3DXL3X |
| Ohio | AUWGAXWCA3D |
| Oklahoma | ZQT75NUJH8A3 |
| Oregon | HKSD3PJ5E5 |
| Pennsylvania | PL8GVVUM4HD |
| Pink Genome | 7WRG3N2MRY2 |
| Red Genome | 9CM4SY23C7X8 |
| Rhode Island | MMYC99T3QG |
| Seal | X56YCKZP2V |
| South Carolina | ZR4465MD8LK |
| South Dakota | RY3NUDDPMU3 |
| Tengu Soldier | PHHB4TY4J2D |
| Tennessee | TD2732GCX43U |
| Texas | QM84UPP6F3 |
| Tsuhan soldier | A9KK7WYWVCV |
| USSR Female Soldier A | 2VXUZQVH9R |
| USSR Female Soldier B | HPMRFSBXDJ3Y |
| USSR Female Soldier C | QXQVW9R3PZ |
| USSR Female Soldier D | GMC3M3LTPVW7 |
| USSR Female Soldier E | 5MXVX6UFPMZ5 |
| USSR Female Soldier F | 76AWS7WDAV |
| Utah | V7VRAYZ78GW |
| Vermont | L7T66LFZ63C8 |
| Virginia | DRTCS77F5N |
| Washington | G3S4N42WWKTV |
| Washington DC | Y5YCFYHVZZW |
| West Virginia | 72M8XR99B6 |
| White Genome | QJ4ZTQSLUT8 |
| Wisconsin | K9BUN2BGLMT3 |
| Wyoming | C3THQ749RA |
| Yellow Genome | CE5HHYGTSSB |
Have a saved game file from Metal Gear Solid: Portable Ops on your memory stick to unlock Boss Rush mode.
JohnnyFind Johnny from Metal Gear Solid, Metal Gear Solid 2, and Metal Gear Solid 3 as a random prisoner in Infinity Mission to unlock Johnny.
Naked SnakeSuccessfully complete Infinity Mission on the Easy difficulty setting to unlock Naked Snake.
Old SnakeSuccessfully complete Infinity Mission on the Medium difficulty setting to unlock Old Snake.
RaidenSuccessfully complete Infinity Mission on the Hard difficulty setting to unlock Raiden.
Roy CambellSuccessfully complete Infinity Mission on the Extreme difficulty setting to unlock Roy Cambell.
Tengu SoldierKnock out the first Tengu Soldier you encounter, and carry him back to the truck unconscious to unlock the Tengu Soldier as a playable character.
All TauntsFind all 68 entries on the soldier list, then successfully complete an Infinity Mission round to unlock all sixteen Taunts.
Skip the Codec call to captureBump 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).
Arms magazine Nile Crocodile soldier (Japanese version)Enter "TTOGZWSREYD" as a recruit password to unlock Arms magazine Nile Crocodile soldier.
Dengeki PlayStation magazine soldier (Japanese version)Enter "YLFSSVBCDLGO" as a recruit password to unlock Dengeki PlayStation magazine soldier.
Famitsu magazine soldier (Japanese version)Enter "ZKUJZUYXJUH" as a recruit password to unlock Famitsu magazine soldier.
