| # | Title | Length |
|---|
| 1 | Main Title | 1:56 |
| 2 | Giant Octopus: The Devil of the Sea | 1:42 |
| 3 | Terror of the Stormy Seas | 1:23 |
| 4 | The Marine Safety Agency | 0:30 |
| 5 | The Tragedy of the Kaijinmaru 3 | 0:42 |
| 6 | Akemi's Memories | 0:57 |
| 7 | Green Gargantua at the Ocean Bottom | 0:22 |
| 8 | Terror at Miura Peninsula | 0:27 |
| 9 | Frankenstein's Cells I | 0:17 |
| 10 | Footprints in the Snow-Covered Valley | 1:21 |
| 11 | Emergency at Haneda Airport | 2:47 |
| 12 | Feel in My Heart | 2:10 |
| 13 | Operation L (March I) | 3:52 |
| 14 | Operation L (March II) | 1:36 |
| 15 | Wiring Complete | 0:57 |
| 16 | Operation L (March III) | 3:22 |
| 17 | Operation L (March IV) | 2:53 |
| 18 | The Appearance of Brown Gargantua | 1:28 |
| 19 | Brown Gargantua and Green Gargantua | 1:09 |
| 20 | Frankenstein's Cells II | 0:18 |
| 21 | Brown Gargantua and Akemi | 1:22 |
| 22 | Brown Gargantua's Rage | 1:35 |
| 23 | Green Gargantua Flees | 0:52 |
| 24 | Green Gargantua Comes Ashore | 0:40 |
| 25 | Brown Gargantua Heads to Tokyo | 0:26 |
| 26 | Brown Gargantua vs. Green Gargantua I | 2:25 |
| 27 | Attack Green Gargantua! | 1:39 |
| 28 | Brown Gargantua vs. Green Gargantua II | 5:14 |
| 29 | Battle to the Death at the Volcano on the Ocean Floor | 1:34 |
| 30 | Ending | 0:35 |
| 31 | M12T1 | 3:53 |
| 32 | New M14 | 1:07 |
| 33 | New M19 | 0:19 |
| 34 | M26RR - Edited Portions | 3:13 |
| 35 | Birthplace I PS-182 Chorus T3 | 1:46 |
| 36 | Birthplace II PS-182 Solo T2 | 1:45 |
| 37 | Birthplace III (End) PS-183 T1 | 0:57 |
| 38 | Birthplace IV (End) PS-183 T2 | 1:12 |
| 39 | Feet in the Alps (End) | 0:59 |
| 40 | PS - Brown Gargantua (karaoke) | 2:11 |
| 41 | The Voice of Green Gargantua | 0:16 |
| 42 | Sound of the Maser Beam Firing | 0:28 |
| 43 | The Voice of Brown Gargantua | 0:20 |
| 44 | "War of the Gargantuas" (Preview version) | 2:17 |
