Okay; this has been itching at me ever since I saw The Professional (1983):
I've always known the Golgo 13 theme to be this one from the NES/Famicom game:https://www.youtube.com/watch?v=HHj7MNpAU-Y
Especially hearing it reused in Mafat Conspiracy/Riddle of Icarus:https://www.youtube.com/watch?v=6baF8C_g888
But after watching The Professional and not hearing the theme there, and realizing there wasn't an anime TV series until 2008, I wondered whether the NES tunes were originally composed by T. Hasuya (the composer for Top Secret Episode) and for some reason reused by the composer in Mafat Conspiracy?
Furthermore, I didn't realize there were lyrics in the FC version until now:https://www.youtube.com/watch?v=AEEBgYqnGlY
Can anyone confirm whether this theme has been used anywhere else? (by the way, can anyone also translate the lyrics?)