Hydefos Original Soundtracks
| Composed by | Keishi Yonao |
| Published by | EGG MUSIC |
| Release type | Game Soundtrack - Official Release |
| Format | 1 Digital - 34 tracks |
| Release date | August 22, 2008 |
| Genres |
| 1 | HYPER DEFENDING FORCE (FM音源版) |  | |
| 2 | AREA‐1 (FM音源版) | | |
| 3 | PIT (FM音源版) | ||
| 4 | METAL CREATURE‐A (FM音源版) | ||
| 5 | WORLD CLEAR (FM音源版) | | |
| 6 | AREA‐2 (FM音源版) | | |
| 7 | METAL CREATURE‐B (FM音源版) | ||
| 8 | VISUAL ALIEN (FM音源版) | | |
| 9 | AREA‐3 (FM音源版) | | |
| 10 | AREA‐4 (FM音源版) | | |
| 11 | VISUAL THEME OF STACY (FM音源版) | ||
| 12 | AREA‐5 (FM音源版) | | |
| 13 | AREA‐6 (FM音源版) | | |
| 14 | VISUAL GREAT RACE (FM音源版) | ||
| 15 | STAFF ROLL (FM音源版) | ||
| 16 | VISUAL WEDDING (FM音源版) | ||
| 17 | GAME OVER (FM音源版) | | |
| 18 | HYPER DEFENDING FORCE (PSG版) | | |
| 19 | AREA‐1 (PSG版) | | |
| 20 | PIT (PSG版) | ||
| 21 | METAL CREATURE‐A (PSG版) | ||
| 22 | WORLD CLEAR (PSG版) | | |
| 23 | AREA‐2 (PSG版) | | |
| 24 | METAL CREATURE‐B (PSG版) | ||
| 25 | VISUAL ALIEN (PSG版) | ||
| 26 | AREA‐3 (PSG版) | | |
| 27 | AREA‐4 (PSG版) | | |
| 28 | VISUAL THEME OF STACY (PSG版) | ||
| 29 | AREA‐5 (PSG版) | | |
| 30 | AREA‐6 (PSG版) | | |
| 31 | VISUAL GREAT RACE (PSG版) | ||
| 32 | STAFF ROLL (PSG版) | ||
| 33 | VISUAL WEDDING (PSG版) | ||
| 34 | GAME OVER (PSG版) | |
