If you loved The Return of the Six-Million-Dollar Man and the Bionic Woman, try Kamen Rider Black: Hurry to Demon Island!
A bridge between a film you've already seen and one most people haven't. Kamen Rider Black: Hurry to Demon Island! has roughly 4.8× fewer votes than The Return of the Six-Million-Dollar Man and the Bionic Woman — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.

The Return of the Six-Million-Dollar Man and the Bionic Woman

Kamen Rider Black: Hurry to Demon Island!
What they share
Theysit in Action / Science Fiction territory. If that's the register that drew you to The Return of the Six-Million-Dollar Man and the Bionic Woman, the second film will land in a comparable space — through a different lens.
What Kamen Rider Black: Hurry to Demon Island! is
You sense something is rotten when Tokyo kids vanish. You tail a suspect bus until it plunges off a cliff, but you survive. With a fisherman's help, you reach the isle. It's Gorgom territory. Konishi's flick hits that late-80s stride, when kids' stuff got dark but still sold toys.