If you loved Great Mazinger vs. Getter Robo, try Queen Millennia
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Masayuki Akehi, and they sit in Action / Animation / Science Fiction territory. If that's the register that drew you to Great Mazinger vs. Getter Robo, the second film will land in a comparable space — through a different lens.
What Queen Millennia is
You live in Tokyo as Earth faces total annihilation. A rogue planet hurtles closer. But a mysterious, beautiful woman appears, claiming she can avert disaster. A secret links her to the alien world. Akehi's space opera blends shōjo romance with apocalyptic stakes. Its visual imagination retains a dedicated cult following.

