Golgo 13 for NES has always had a special spot in my heart. It was the first game that i ever bought with my own money and I loved everything about it: the story, music, different styles of game play. The violence and suggested sex was great too and I'm still amazed that Nintendo gave it's seal of approval to it.
Although we got The Mafat Conspiracy, I was really bummed that more G13 games weren't released in the US. After some searching though, I found that there were several titles available overseas:
Spectrum Computer:
Can't remember the name but i've got the ROM somewhere
Arcade:
KLOV says there was a Japanese G13 arcade game released in 1999. Downloaded the ROM and it looks a lot like Silent Scope, although I couldn't play it on my computer.
Playstation:
Again, I don't know the official names, but it looks like there were a couple released on PS1 in Japan. Think these are digital comics though and not actually games.
Misc:
There is a Golgo 13 themed slot machine that pops up on Ebay every once in a while.
Can anyone add to the list or provide more info on the import titles?
EDIT: I guess this belongs in the classic gaming forum. Mods?