| IPOD TRACK | LOCATION |
|---|
| "Inori no Uta" from HIDECHAN! Radio. | Act 1; Mission Briefing |
| "Theme of Tara" from the original Metal Gear. | Act 1; Middle East: Militia Safe House |
| "Zanzibarland Breeze" from the Metal Gear Music Collection 20th Anniversary Album | Act 1; Middle East: Urban Ruins |
| "Level 3 Warning" from Metal Gear 2: Solid Snake | Act 1; Middle East: Advent Palace |
| "Theme of Solid Snake" from Metal Gear Solid 2: Solid Snake | Act 1; Middle East: Millennium Park |
| "Boktai 2 Theme" from Boktai 2: Solar Boy | Act 2; Mission Briefing |
| "The Fury" from Metal Gear Solid 3 | Act 2; South America: Cove Valley Village |
| "Rock Me Baby" from Metal Gear Solid 3 | Act 2; South America: Confinement Facility |
| "Metal Gear 20 Years History (Part 3)" from the Metal Gear Music Collection 20th Anniversary | Act 2; South America: Confinement Facility |
| "Sailor" from Metal Gear Solid 3 | Act 2; South America: Vista Mansion |
| "Bon Dance" from Metal Gear Solid 3 | Act 2; South America: Marketplace |
| "Show Time" from Metal Gear Solid Portable Ops | Act 1 or Act 2 and friendly with militia or rebels; give a militia or rebel an item. |
| "MGS4 Love Theme (Action Version)" from Metal Gear Solid 4 | Act 1 or Act 2 and friendly with militia or rebels; give a militia or rebel an item. |
| "MPO+ Theme" from Metal Gear Solid: Portable Ops Plus | Act 1 or Act 2 and friendly with militia or rebels; give a militia or rebel an item. |
| "Destiny Call - Break for the Fortress" | Act 1 or Act 2 and friendly with militia or rebels; give a militia or rebel an item. |
| "Shin Bokura no Taiyou Theme" | Act 3; Mission Briefing |
| "Bio Hazard" from Snatcher | Act 3; Hold up the resistance member and perform a body search. |
| "One Night in Neo Kobe City" from Snatcher | Act 3; Hold up a PMC soldier (in Midtown S Sector, the one to the right of the park entrance) and perform a body search. |
| "Test Subjects Duality" from Metal Gear Acid | Act 3; Eastern Europe: Midtown S Sector |
| "On Alert" from Metal Gear Acid | Act 3; Eastern Europe: Midtown N Sector |
| "The Essence of Vince" from Metal Gear Acid | Act 3; Eastern Europe: Echo’s Beacon |
| "Lunar Knights Main Theme" from Lunar Knights | Act 4; Mission Briefing |
| "Warhead Storage" from Metal Gear Solid | Act 4; Shadow Moses: Tank Hanger |
| "flowing destiny" from Zone of the Enders | Act 4; Shadow Moses: Canyon |
| "Metal Gear 20 Years History (Part 2)" from the Metal Gear Music Collection 20th Anniversary Album | Act 4; Shadow Moses: Nuclear Warhead Storage Bldg B2 |
| "Policenauts End Title" from Policenauts | Act 4; Shadow Moses: Nuclear Warhead Storage Bldg B2 (input 13462 into the control panel). |
| "Old L.A. 2040" from Policenauts | Act 4; Shadow Moses: Nuclear Warhead Storage Bldg B2 (input 78925 into the control panel). |
| "Beyond the Bounds" from Zone of the Enders: The 2nd Runner | Act 4; Shadow Moses: Tank Hanger (after completing the control panel sequence). |
| "The Best Is Yet To Come" from Metal Gear Solid | Act 4; Shadow Moses: Snowfield & Communications Tower |
| "Yell Dead Cell" from Metal Gear Solid 2 | Act 4; Shadow Moses: Casting Facility North |
| "Metal Gear Solid Main Theme (The Document Remix)" from The Document of Metal Gear Solid 2 | Act 5; Outer Haven: Ship Bow |
| "Desperate Chase" | Use the password "thomas" in the Extras menu. |
| "Gekko" | Use the password "george" in the Extras menu. |
| "Midnight Shadow" | Use the password "theodore" in the Extras menu. |
| "Mobs Alive" | Use the password "abraham" in the Extras menu. |
