I remember when I was young, I had several Sailor Moon DVDs, and in the trailers section they had different anime trailers. I discovered some shows from there, like Princess Nine, Dirty Pair Flash, Medabots, Sakura Wars... But only on one DVD, there was a trailer that I don't remember the name of the anime. I have never seen or heard about it anywhere since, so I think it was not popular or well known at all. It may have even been a movie? I have no idea.
I remember it looked older, the