Hydorah Original Soundtrack
| 1 | First Contact | 00:33 |  |
| 2 | Title Screen | 00:42 | |
| 3 | Take Off | 00:12 | |
| 4 | Outer Wall | 01:19 | |
| 5 | Under Attack | 00:42 | |
| 6 | Cyclades Liberation | 01:03 | |
| 7 | Into the Rock | 01:33 | |
| 8 | Prepare to Die | 02:58 | |
| 9 | Interlude | 00:31 | |
| 10 | Robot Chase | 00:52 | |
| 11 | Orbital Tree | 01:02 | |
| 12 | Verminest | 01:01 | |
| 13 | Space Creature | 03:03 | |
| 14 | Dunarys | 01:02 | |
| 15 | Dunarys II | 01:35 | |
| 16 | Hard Rain | 00:29 | |
| 17 | Rubinia | 01:20 | |
| 18 | The Oracle | 01:30 | |
| 19 | Select | 00:33 | |
| 20 | Coronel | 00:09 | |
| 21 | Battlefront | 01:07 | |
| 22 | Battlefront II | 01:23 | |
| 23 | Battlefront III | 01:22 | |
| 24 | Battlefront IV | 01:23 | |
| 25 | Berserk | 01:34 | |
| 26 | One Great Victory | 00:19 | |
| 27 | Storm Eye | 00:48 | |
| 28 | Untulia | 02:18 | |
| 29 | Red Eden | 01:02 | |
| 30 | Meroptian Menace | 00:25 | |
| 31 | Klaverona I and II | 02:54 | |
| 32 | Path of Scylla | 01:02 | |
| 33 | Moa Urdz | 01:20 | |
| 34 | Black Gate | 00:32 | |
| 35 | Black Gate Descent | 00:44 | |
| 36 | Evil Seed | 00:27 | |
| 37 | No Mercy | 03:01 | |
| 38 | Meropticon | 00:29 | |
| 39 | Meropticon II | 01:20 | |
| 40 | Meropticon III | 02:45 | |
| 41 | Meropticon IV | 01:09 | |
| 42 | Meropticon V | 01:02 | |
| 43 | Evil Garden | 00:36 | |
| 44 | Evil God Hydorah | 00:34 | |
| 45 | Somet Nac | 02:00 | |
| 46 | Game Over | 00:10 | |
| 47 | Into the Black Gate | 01:48 | |
| 48 | The Explorer | 00:42 | |
| 49 | BONUS Trailer | 01:19 | |
| 50 | Smile | 00:03 | |
