It was followed by a sequel, Hepcat in the Funky Hat: The 20,000,000 Yen Arm, which was released one month later that same year and was also directed by Kinji Fukasaku with Sonny Chiba and Shiro Okamoto in the same roles.

Ichiro Tenka lives in Tokyo working as a part-time car salesman and spending his free time picking up girls with his friend Shigeru.

Midori meets Mr. Kogure with the plan to use the photograph to pressure him into confessing who the contractor will be so that she can buy stock in that company before its value rises, but instead she is mistaken for the kidnapper and questioned by Ichiro's father Seisuke, the head of the Tenka Detective Agency.

When he sees the money she is carrying, Seisuke and his employees have to explain the situation, causing the media to become aware of the kidnapping and leading to the press camping outside of the Kogure residence, where they discover Yasuyuki returning home alone.

Mikko Koivisto of elitisti gave the film a score of 3.5/5, calling it "an enjoyable piece of the early history of the promising young director and actor".