I've never been able to figure this out. The nostalgia factor is huge, so it would be amazing if you could identify this.
This was about a 10 minute-long anime short, set to electronic music. There was no dialogue at all (like Interstella 5555, but this was a short film, and predated it).
It portrayed an epic tale which involved a male humanoid hero rescuing a female. I don't remember much more than that. I vaguely recall alien landscapes of some kind, possibly subterranean (but still open and lit up in probably a bluish light), and the male protagonist running. It is definitely possible the gender roles were actually swapped. I don't think they were robots/androids, but its possible. There were no other characters I don't think except for one villain or giant alien monster thing. The music was very good, electronic / synthesizer-based. The whole thing was very short, very simple, but somehow still epic.
I only saw this once, and it really struck me. I am guessing it was made in Japan in the late 1980s, or early 1990s, a few years before it aired - but this is just a hunch.
I saw this in the early or mid 1990's, on a Chicago cable channel which showed anime late at night. (There is a chance it was on MTV's liquid television, but I don't think so.) The lack of dialogue sounds almost like a Heavy Metal short, but it definitely wasn't from Heavy Metal.