The Gold of the Aztecs

When the game starts, Bret is hanging by the shrouds of his parachute in a tree. Cut him loose by pressing FIRE. Then go right or left to begin the game.
So what's it all about?
Bret's the name. Bret Conrad. I'm Special Forces Vietnam {retired} and I was pretty bored.
The CIA said I was too much of a risk, even the FBI wouldn't have me. I see their point, I do like a bit of action and when the bullets start flying I kind of lose control. Still my old Sarge said the name of the game is survival and I'm pretty good at that.
Trouble was I was down at heel, out of luck and bored. If you don't know how bored I was, you should try a Saturday night out in Tijuana. I was stying there with my great uncle Milo who, being my last living relative, became by default my benefactor. Trouble with old Milo was his obsession with Aztecs, lots of dry dusty adademic things cluttering up his pad and never a party to speak of. He never had much money so I had to do some part time stuff for local security firms who wouldn't even issue me with an UZI. I suppose they were concerned at the cost of bullets I might use.
Anyway to get back to the tale, old Milo goes and croaks. Dead as a Dodo. Naturally I end up with the apartment and the relics, but what's a guy like me supposed to do with a load of old antiques?...
Play to the end and you'll see how I got on.

What is abandonware ?