Side 1 "Gamera vs. Zigra" ; music: Shunsuke Kikuchi*
Side 2 "Gamera vs. Viras" ; music: Kenjiro Hirose*
01. "Bokura no Gamera" theme song
08,13. "Gamera March" theme song
Lyrics by: Hideomasa Nagata
Composed by: Kenjiro Hirose
Vocals by: Daiei Jidou Gasshoudan [大映児童合唱団]
Daiei Recording Orchestra [大映レコーディング・オーケストラ]
*uncredited
Album was composed by Kenjiro Hirose / Kenjiro Hirose / Shunsuke Kikuchi and was released on October 1971. Soundtrack consists of 13 tracks tracks with duration over . Album was released by Columbia.
CD 1
| 1 | ぼくらのガメラ ガメラあらわる | | |
| 2 | ジグラ星人の地球人へのちょうせん | | |
| 3 | 宇宙船のついせき ガメラ救助 | | |
| 4 | ガメラとジグラのたたかい ガメラ気を失う | | |
| 5 | バチスカーフ（せんすいてい）深海へ沈没 | | |
| 6 | ガメラ、ジグラにふたたびちょうせん | | |
| 7 | ぼくらのガメラ | | |
| 8 | ガメラマーチ 宇宙船とガメラのたたかい | | |
| 9 | せんすいてい 海中さんぽ | | |
| 10 | 宇宙船のわるだくみ ガメラ危うし | | |
| 11 | 宇宙船だっしゅつ | | |
| 12 | バイラス、ガメラのげきとつ | | |
| 13 | ガメラマーチ | | |
