Het genetisch gemanipuleerde monster Gargantua ontsnapt uit een laboratorium en krijgt al gauw de schuld van de vernielingen die in Japan werden aangericht. Er blijkt echter nog een tweede Gargantua te bestaan en al gauw komen de twee monsters elkaar tegen.
Nee, helaas is フランケンシュタインの怪獣 サンダ対ガイラ nog niet beschikbaar op Netflix in Nederland.
| Sound | 伊福部昭 | Original Music Composer |
| Art | 北猛夫 | Production Design |
| Writing | Reuben Bercovitch | Story |
| Directing | 本多猪四郎 | Director |
| Editing | 藤井良平 | Editor |
| Production | Shoichi Koga | Production Manager |
| Production | Richard Krown | Production Supervisor |
| Crew | 中野昭慶 | Special Effects Assistant |
| Sound | Sadamasa Nishimoto | Sound Effects Editor |
| Visual Effects | 円谷英二 | Visual Effects |
| Sound | Norio Tone | Sound Recordist |
| Directing | 梶田興治 | First Assistant Director |
| Camera | 小泉一 | Director of Photography |
| Writing | 木村 武 | Screenplay |
| Writing | 本多猪四郎 | Screenplay |
| Production | 田中友幸 | Executive Producer |
| Production | 角田健一郎 | Executive Producer |
| Production | Henry G. Saperstein | Executive Producer |
| Production | Reuben Bercovitch | Executive Producer |
| Visual Effects | 円谷英二 | Visual Effects Director |
| Writing | Mary Shelley | Characters |
| Sound | Kipp Hamilton | Vocals |
| Crew | 円谷英二 | Special Effects |
| Crew | 中野昭慶 | Special Effects |
| Visual Effects | 中野昭慶 | Visual Effects |
| Visual Effects | 中野昭慶 | Visual Effects Director |
| Crew | 有川貞昌 | Special Effects |
| Visual Effects | 有川貞昌 | VFX Director of Photography |
| Crew | 富岡 素敬 | Special Effects |
| Visual Effects | 富岡 素敬 | VFX Director of Photography |
| Crew | 井上 泰幸 | Visual Effects Art Director |
| Lighting | Toshio Takashima | Lighting Technician |
| Visual Effects | 岸田九一郎 | VFX Lighting Artist |
| Lighting | 岸田九一郎 | Lighting Technician |
| Visual Effects | 向山 宏 | Visual Effects |
| Visual Effects | 向山 宏 | Visual Effects Compositor |
| Visual Effects | Yoshiyuki Tokumasa | Visual Effects |
| Visual Effects | Yoshiyuki Tokumasa | Visual Effects Camera |
| Crew | Fumio Nakadai | Special Effects |
| Visual Effects | 坂本 泰明 | Visual Effects Production Manager |
| Costume & Make-Up | Teizô Toshimitsu | Costume Design |
| Visual Effects | Teizô Toshimitsu | Modeling |
| Crew | 真野田 陽一 | Special Effects |
| Visual Effects | 真野田 陽一 | VFX Director of Photography |
| Visual Effects | 川北紘一 | Visual Effects |
| Visual Effects | 川北紘一 | Visual Effects Camera |
| Visual Effects | 川北紘一 | Visual Effects Compositor |
| Directing | Seiji Tani | Assistant Director |
| Crew | Takeharu Ikebuchi | Visual Effects Art Director |
| Crew | Takeharu Ikebuchi | Special Effects Assistant |
| Crew | Hiromasa Shirai | Special Effects Assistant |
| Crew | Hiromasa Shirai | Visual Effects Art Director |
| Crew | 小村 完 | Special Effects Assistant |
| Crew | 小村 完 | Visual Effects Art Director |
| Crew | 白崎 治郎 | Visual Effects Art Director |
| Crew | 白崎 治郎 | Special Effects Assistant |
| Crew | Yoshio Irie | Special Effects Assistant |
| Crew | Yoshio Irie | Visual Effects Art Director |
| Crew | 青木 利郎 | Special Effects Assistant |
| Crew | 青木 利郎 | Visual Effects Art Director |
| Crew | Shun Suganuma | Visual Effects Art Director |
| Crew | Shun Suganuma | Special Effects Assistant |
| Crew | Mutsumi Toyoshima | Visual Effects Art Director |
| Crew | Mutsumi Toyoshima | Special Effects Assistant |
| Crew | 飯塚 定雄 | Special Effects |
| Visual Effects | 飯塚 定雄 | Visual Effects |
| Crew | Kyuzo Yamamoto | Special Effects |
| Crew | Tadaaki Watanabe | Special Effects |
| Crew | Tokimaro Karasawa | Special Effects |
| Crew | Tokimaro Karasawa | Special Effects Assistant |
| Visual Effects | Tokimaro Karasawa | Visual Effects Camera |
| Crew | Kenya Mukai | Special Effects |
| Crew | Kenya Mukai | Special Effects Assistant |
| Visual Effects | Kenya Mukai | Visual Effects Camera |
| Crew | Takeshi Yamamoto | Special Effects |
| Crew | Takeshi Yamamoto | Special Effects Assistant |
| Visual Effects | Takeshi Yamamoto | Visual Effects Camera |
| Crew | Takao Tsurumi | Special Effects |
| Crew | Takao Tsurumi | Special Effects Assistant |
| Visual Effects | Takao Tsurumi | Visual Effects Camera |
| Crew | Takeshi Miyanishi | Special Effects |
| Crew | Takeshi Miyanishi | Special Effects Assistant |
| Visual Effects | Takeshi Miyanishi | Visual Effects Camera |
| Crew | Mitsuru Toriumi | Special Effects |
| Crew | Mitsuru Toriumi | Special Effects Assistant |
| Visual Effects | Mitsuru Toriumi | Visual Effects Camera |
| Visual Effects | 成田 亨 | Creature Design |
