If you havent played this yet, I suggest you get the Sega CD ISO. It's one of kojima's early games. It was originally based on a game of the same name for the MSX (it's a computer....think comadore 64 only better) Then in 1993(I think) they remade it for the PCE engine CD (turbo grafix 16 cd) With voice overs, improved music and such. Then Konami ported that to the sega cd for the US.
It's pretty great, I'm playing it on MSX. I dabbled on the Sega CD, but I'd like to finish the original before I go into the remake. The gameplay is really absent, it's an adventure game. Basicly you tell the game what you want to do "Look here" "take that". But I'm loving the story and art designs are really great, and am really getting into that classic 80's CyberPunk theme. Best of all, you get a little side kick named Metal Gear.