INFO:
King of Snake is a 1984 kaiju/children's film from Taiwan. Although it starts slowly, there is some good giant monster action. This film is also somewhat of an low-budget 80s action movie, with gangs, shootouts, and other elements unlikely to appear in a Western children's film. It's sourced from a fairly beat up VHS tape, and is in Chinese with  English subtitles.
King Of Snake : Free Download, Borrow, and Streaming : Internet Archive