Theatrical film of the anime series Tatakae!! Ramenman, based on the manga chapter Strike the Darkness. It was released in Japan on July 9, 1988 and is set sometime after the Mongol Tiger two-parter. (Source: Kinnikuman Wiki)

Set in a land where several martial arts styles collide, including (but not limited to) Chinese Kung Fu, Japanese Karate, and South Korean Taekwondo. Yet amongst these Shaolin-trained fighters and men powerful enough to cut the face of a mountain, Victory Ramenman is said to be the strongest of them all. At a young age, he witnessed his father Somenman being murdered by members of the Cobra Gang (who are still running rampant to this day). Found and taken in by the wise old Chen Sou-Mei, Ramenman trains for 12 years under his master and learns the great Essential Battle Dragon (闘龍極意書, To Ryuu Gokui Sho) style of Choujin Martial arts. Now, with his young sidekick Shao-Mai, Ramenman travels the land seeking vengeance for his father, fighting several villains along the way. (Source: Wikipedia)

With another Wave happening in a week, Naofumi Iwatani and his party have no time to waste. However, when bat familiars raid Lurolona Village and the Wave countdown comes to a halt, the Four Cardinal Heroes reconvene with the queen, Mirelia Q Melromarc, for a quick briefing. The queen presumes that the odd occurrences are linked to the Spirit Tortoise—a threatening creature that has awakened from its slumber, back to cause havoc once again. A plan to put the Spirit Tortoise to rest is devised—but out of the four men, only the cursed Shield Hero agrees to help.

Unaired specials included in the Blu-ray and DVD release.