Disc 01: Metal Slug X
Disc 02: Metal Slug 3
Альбом был написан Captain Beroou / Hiya! / Hori_Hori / maitaro / Q_JIROU и вышел 29 апреля 2020 года. На саундтрек попало 51 композиция общей длительностью более 2-х часов. Подборка является компиляцией оригинальной музыки. Выпуском пластинки занимался лейбл City Connection.
CD 1
| 1 | NEOGEO SOUND LOGO (NEOGEO Edition) | 00:09 | |
| 2 | TITLE | 00:11 | |
| 3 | CREDIT | 00:04 | |
| 4 | THE MILITARY SYSTEM -X- (Operation Explanation, Ranking) | 01:50 | |
| 5 | BARRACKS -X- (Character Select) | 00:54 | |
| 6 | JUDGMENT -X- (Stage 1) | 03:13 | |
| 7 | STEEL BEAST 6BEETS -X- (Boss Stage A) | 02:17 | |
| 8 | CARRY OUT -X- (Stage Clear) | 00:09 | |
| 9 | PREHISTORIC SITE -X- (Stage 2-1) | 03:08 | |
| 10 | THE CENOTAPH -X- (Stage 2-3) | 03:31 | |
| 11 | FIRST CONTACT -X- (Boss Stage B, Stage 6-2) | 02:57 | |
| 12 | LIVIN ON THE DECK -X (Stage 3-1) | 03:55 | |
| 13 | ASSAULT THEME -X- (Boss Stage C, Stage 6-1) | 04:33 | |
| 14 | BACK TO THE CHINA -X- (Stage 4-1) | 03:30 | |
| 15 | NEW GODOKIN STREET -X- (Stage 5-1) | 02:05 | |
| 16 | KISS IN THE DARK -X- (Stage 5-2) | 02:30 | |
| 17 | METAMORPHOSIS -X- (Stage 5-3) | 03:21 | |
| 18 | FINAL ATTACK -X- (Stage 6-3) | 03:26 | |
| 19 | END TITLE AGAIN -X- (Final Scene) | 00:24 | |
| 20 | MS_X ENDING (End Credits) | 02:46 | |
| 21 | GRAVESTONE -X- (Game Over) | 00:09 | |
CD 2
| 1 | NEOGEO SOUND LOGO (NEOGEO Edition) | 00:09 | |
| 2 | CREDIT | 00:04 | |
| 3 | THE MILITARY SYSTEM (Operation Explanation, Ranking) | 00:57 | |
| 4 | BARRACKS (Character Select) | 00:44 | |
| 5 | Blue Water Fangs -The Island of Dr. Moreau- (MAIN THEME FROM METAL SLUG3) (Stage 1) | 03:51 | |
| 6 | Marine Diver (Stage 1 Alternative Route ~ Ocean Depths) | 02:55 | |
| 7 | THE UNKNOWN WORLD (Stage 1 Alternative Route ~ Core Facility, UFO Interior Passage 1) | 04:09 | |
| 8 | STEEL BEAST 7BEATS (Boss Stage A) | 02:16 | |
| 9 | CARRY OUT (Stage Clear) | 00:09 | |
| 10 | Midnight Wandering (Stage 2) | 04:04 | |
| 11 | Snow Cave of Evil (Stage 2 Alternative Route ~ Ice Cave) | 03:09 | |
| 12 | METAMORPHOSIS (Boss Stage B) | 03:13 | |
| 13 | Shallow Sea (Stage 3) | 02:43 | |
| 14 | In the Hard Sea (Stage 3 Alternative Route ~ Underground Channel) | 04:12 | |
| 15 | ASSAULT THEME (Stage 3 Alternative Route ~ Bridge, Stage 5-2) | 04:21 | |
| 16 | Secret Factory (Stage 3 Alternative Route ~ Armory) | 03:40 | |
| 17 | Desert (Stage 4) | 02:57 | |
| 18 | Pyramid (Stage 4 Alternative Route ~ Pyramid) | 02:31 | |
| 19 | THE CENOTAPH (Stage 4 Alternative Route ~ Ancient Ruins) | 01:52 | |
| 20 | Japanese Soldiers (Stage 4 Alternative Route ~ Former Regular Army Hideout) | 03:16 | |
| 21 | Into the Sky (Stage 5-1) | 02:54 | |
| 22 | THE KIDNAPPING (The Mars People Arrive) | 00:34 | |
| 23 | Into the Space (The Void of Space) | 04:00 | |
| 24 | KISS IN THE DARK (Enemy UFO Interior) | 02:14 | |
| 25 | FIRST CONTACT (UFO Interior Passage 2) | 02:40 | |
| 26 | BIOINFORMATICS (UFO Interior Passage 3) | 03:42 | |
| 27 | ESCAPE (UFO Escape) | 04:03 | |
| 28 | FINAL ATTACK (Final Boss) | 03:17 | |
| 29 | END TITLE (Final Scene ~ Staff Roll) | 02:29 | |
| 30 | GRAVESTONE (Game Over) | 00:09 | |
