It is said that Akio Jissoji who was brought back from Kyoto was surprised to find the Tsuburaya Productions staff was so depressed and demotivated from the reduced budget caused by the low viewership the final season of the show “Ultraseven” had marked.
One of the two episodes he directed after he came back to Tokyo, Ultraseven Episode 43 “Nightmare on Planet 4,” was planned by Shozo Uehara, the script writer in charge of the episode, to feature many aliens and kaijus probably almost out of desperation under the title of “15 Aliens+35 Kaijus” while being fully aware that it would be rejected.
As expected, it WAS rejected on the grounds that the alien and kaiju characters were too many as over 50 of them would be needed. Instead, “Nightmare on Planet 4″ was produced as an episode having no kaiju characters appear conversely. It is said that Uehara and Jissoji had plotted to make episodes they wanted to make by initially presenting the idea of an episode hardly possible to be realized to the producers and, out of the opposite momentum, having them agree to whatever they wanted to make.
The story of the episode”15 Aliens+35 Kaijus” is alleged to go like this:
Alien Baltan who should have been defeated by Ultraman intruded on the earth. While Ultraseven tried to chase the alien, he used up his energy by fighting with the aliens and kaijus landing on the earth from space one after another and rampaging in every part of Japan or the world. It was the allied forces comprising the aliens and kaijus who had been defeated by Ultraman and Ultraseven.
Although Pigmon informed the Ultra Garrison of the allied forces’ attack, the team was no match for the aliens and kaijus. The moment Dan turned Ultraseven in spite of his severe injuries to stand up against them, Space Beast God (Uchu Jushin) “Gōdo” (probably Gode or Gord if it is English that should apparently have been derived from the word “god”) appeared from the sky, and he wiped out all the aliens and kaijus Ultraseven failed to defeat so he went back to the sky.