I never watched the anime but I had Zillion on Sega Master System. Years later I beat it again. This ost plays at the beginning of the game. Fond memories maybe I'll give the anime a try.
It has been more than 30 years that I was looking for this, I remember being a 5 years old kid in 1993 when my brother and I saw this in a VHS that my beloved parents gave to us. For an unknown reason, we lost the VHS in 1994 and we never saw it again. In our memories,, we had that the name was Zion or something starting with Z, then the letter i, o, and n, but missed the double LL. Sadly my father passed away 1 month ago and suddenly so many memories came to our minds (my brother and I), and just a few minutes ago looking for some animes to watch, this important treasure was revealed to us.
I never came across this but when I first heard this song on RU-vid and learned about the Zillion gun/game, I felt an insane sense of nostalgia since I am a little older. Watching the series reminds me of power rangers a little, insane yet fun.