In 1979 Toei president Shigeru Okada saw the future. More precisely, he saw Walter Hill's The Warriors in the US prior to its Japanese opening. Okada rushed back to make his own version. "Towards the 80! Our era! Now filming!" the trailer exclaimed. The plot is roughly the same as in The Warriors...
A Sun Vulcan movie was released on July 18, 1981 at the Toei Manga Festival. It takes place some time after episode 23. In it Black Magma decides to separate Hiba from his teammates while plotting to blow up Tokyo with hidden bombs.