RIVAL MEGAGUN Original Soundtrack
| Composed by | Dominic Ninmark |
| Published by | First Press Games |
| Catalog number | FPCD-0009 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 21 tracks |
| Release date | June 2020 |
| Duration | 01:21:26 |
| Genres |
| 1 | Title Theme | 02:37 | |
| 2 | Menu | 01:36 | |
| 3 | Character Select | 01:45 | |
| 4 | Arcade Intro | 02:48 | |
| 5 | Arcade Opening | 00:35 | |
| 6 | Double Blast Off (Stage 1) | 04:48 | |
| 7 | Parallel Skies (Stage 2) | 04:29 | |
| 8 | Twin Asteroids (Stage 3) | 05:14 | |
| 9 | Two Dimensions (Stage 4) | 04:34 | |
| 10 | Rival Planets (Stage 5) | 05:28 | |
| 11 | Dual Darkness (Stage 6) | 04:35 | |
| 12 | Event Horizon (Stage 7-1) | 05:16 | |
| 13 | Defeat | 01:25 | |
| 14 | Double Blast Off (Mega Version) | 04:48 | |
| 15 | Parallel Skies (Mega Version) | 04:31 | |
| 16 | Twin Asteroids (Mega Version) | 05:14 | |
| 17 | Two Dimensions (Mega Version) | 04:34 | |
| 18 | Rival Planets (Mega Version) | 05:28 | |
| 19 | Dual Darkness (Mega Version) | 04:35 | |
| 20 | A True Hero (Stage 7-2) | 04:40 | |
| 21 | Victory | 02:26 |
