Music: Osamu Totsuka, Kisaburo Suzuki
01. opening theme TV size
13. ending theme TV size
15. opening theme
24. ending theme
Vocals by: Norio Sakai
Lyrics by: Akira Ohtsu
Composed by: Kisaburo Suzuki
Arranged by: Masaki Iwamoto
17. image song
Vocals by: コンポイドスリー
Lyrics by: Takeshi Aida
Composed and Arranged by: Osamu Totsuka
Album was composed by Kisaburo Suzuki / Osamu Totsuka and was released on September 25, 2019. Soundtrack consists of 24 tracks tracks with duration over . Album was released by CINEMA-KAN.
CD 1
| 1 | 夢のヒーロー (TV Size) | | |
| 2 | サブタイトル音楽 | | |
| 3 | がんばれ!3人組 | | |
| 4 | 小さな悪意 | | |
| 5 | 魔王カーンテジファー | | |
| 6 | 怪獣出現! | | |
| 7 | 侵略 | | |
| 8 | パサルートを駆け抜ける | | |
| 9 | アクセスコードはGridman | | |
| 10 | アシスト・ウェポンを発進せよ! | | |
| 11 | 電光雷撃剣グリッドマンソード | | |
| 12 | 平和な街角 | | |
| 13 | もっと君を知れば (TV Size) | | |
| 14 | 予告音楽 | | |
| 15 | 夢のヒーロー | | |
| 16 | 僕たちの秘密基地 | | |
| 17 | ふたつの勇気 | | |
| 18 | 破壊 | | |
| 19 | グリッドマン危うし | | |
| 20 | 敗北 | | |
| 21 | 電光超人は今も君のそばに | | |
| 22 | ハートブレイク | | |
| 23 | ともだち | | |
| 24 | もっと君を知れば | | |
