BGM: Pomi
Yuki Saito
RE-D
Shinnosuke Rimo Mori
M1.15 - Composition: Tchaikovsky
M1.16 - Composition: Dvořák
M3.01~03 - Composition: Chopin
M3.04 - Composition: Moszkowski
M3.07 - Opening Theme
Lyrics: Hato
Composition/Arrangement: Yuki Saito
Vocal: konore
M3.08 - Featured Song
Lyrics: Hato
Composition/Arrangement: Pomi
Vocal: Kaori Imazumi
M3.09 - Featured Song
Composition/Arrangement: Pomi
Vocal: Kirin
M3.11 - Featured Song
Lyrics: Hato
Composition/Arrangement: Pomi
Vocal: Kaori Imazumi
M3.12 - Featured Song
Lyrics: Hato
Composition/Arrangement: Pomi
Vocal: Kaori Imazumi
Audio Director Kosei Sato
Sound production G-angle, Inc.
Enclosed with Marco to Ginga Ryuu ~MARCO & THE GALAXY DRAGON~ GALAXY EDITION (TKTN-002P).
Album was composed by Chopin / Dvořák / Moszkowski / Pomi / RE-D / Shinnosuke Rimo Mori / Tchaikovsky / Yuki Saito and was released on February 28, 2020. Soundtrack consists of 52 tracks tracks with duration over more than 2 hours. Album was released by TOKYOTOON.
CD 1
| 1 | Practice | 01:30 | |
| 2 | Marco and Arco: Middle Tempo | 02:12 | |
| 3 | Confused | 01:36 | |
| 4 | The Galaxy Carnival | 01:06 | |
| 5 | Kind Secret | 03:37 | |
| 6 | Beast without love | 01:14 | |
| 7 | Gold Cord Blues | 02:06 | |
| 8 | Harbor | 00:42 | |
| 9 | Tick Tock | 01:30 | |
| 10 | Stomach Condition | 01:09 | |
| 11 | Search-and-Destroy Mission | 02:22 | |
| 12 | Black Undulation | 02:15 | |
| 13 | Sunset in Gold Cord | 01:42 | |
| 14 | Black Metal | 02:02 | |
| 15 | Tchaikovsky's "Waltz of the Flowers" | 01:51 | |
| 16 | Dvořák's "Slavonic Dance No. 10" | 01:33 | |
| 17 | TOS violation | 01:36 | |
| 18 | Bad end | 03:15 | |
| 19 | Hunger and Orb: OP ver | 01:36 | |
| 20 | Hunger and Orb: inst | 04:19 | |
CD 2
| 1 | Full on a plate | 03:20 | |
| 2 | Quiet Morning | 01:32 | |
| 3 | Red and Blue | 01:21 | |
| 4 | Bouquet | 01:55 | |
| 5 | When I was a child | 02:27 | |
| 6 | Hourglass | 04:00 | |
| 7 | Tragedy | 01:59 | |
| 8 | I'm all prepared | 01:45 | |
| 9 | Big Road | 01:39 | |
| 10 | Encounter | 02:36 | |
| 11 | Creature | 01:36 | |
| 12 | Welcome to Gold Cord | 02:19 | |
| 13 | Stardust | 02:34 | |
| 14 | Invisible Treasure | 02:00 | |
| 15 | Invisible Treasure: Piano ver. | 01:51 | |
| 16 | Marco and Arco | 03:25 | |
| 17 | Big Dipper | 01:07 | |
| 18 | Something Hard | 01:15 | |
| 19 | Seafood | 01:06 | |
| 20 | Chaos | 00:59 | |
CD 3
| 1 | Chopin's Piano Concerto No. 1 - The first movement - Excerpt 1 | 05:48 | |
| 2 | Chopin's Piano Concerto No. 1 - The first movement - Excerpt 2 | 03:11 | |
| 3 | Chopin's Piano Concerto No. 1 - The first movement - Excerpt 3 | 03:26 | |
| 4 | Moszkowski's "Tarantella" | 02:15 | |
| 5 | Marco and the Galaxy Dragon | 02:18 | |
| 6 | To Be a Spiritually Rich Girl | 03:22 | |
| 7 | Hunger and Orb | 04:19 | |
| 8 | The Blue Star | 04:58 | |
| 9 | Denderaryuba | 03:16 | |
| 10 | The Goodbye Song | 04:51 | |
| 11 | Universe | 03:12 | |
| 12 | The Galaxy Dragon | 03:11 | |
