Tsukamoto then started up a theatre group, which soon included Kei Fujiwara, Nobu Kanaoka and Tomorowo Taguchi, all of whom would continue to work with Tsukamoto up through the filming of Tetsuo: The Iron Man.
Tsukamoto kemudian memulai sebuah kelompok teater, yang kemudian meliputi Kei Fujiwara, Nobu Kanaoka, dan Tomorowo Taguchi, semuanya masih berkarya dengan Tsukamoto melalui pemfilman Tetsuo: The Iron Man.