 One of the proposed titles for this film was "Frankenstein Vs. the  Giant Devil Fish". In fact, one of the lobby photos features the  title monster doing battle with a giant octopus. However, that scene  was deleted from the film. Ironically, the sequel, Furankenstein no  kaiju: Sanda tai Gaira does feature a battle between Gaira, the  Green Gargantua, and a giant octopus.