I agree with Finn. There also a lot of references to other Lucas games, even to the old Zack Mccracken.
At the time, when this old one came out, I had a Monochromatic monitor and I didn´t full realize what was on the background. Later on, with the rising of the first CGA, EGA and the (at the time) marvelous VGA monitors, it proved to be a better experience to play these games.
I remembered at the time, I had to get a copy, from a copy, from a copy of the codes to play the Indy's Last Crusade, cause the first copy of the game I get was a demo.
I could only play with Indy inside the University!!! When I got the codes and manage to play the full game was GREAT!
I wonder if these youth realize what was to play the first adventure games without the help of the internet? I had to spend HOURS on a certain puzzle to get the solution, or wait (with some luck) for some friend of mine to know the answer.
And more...some solutions were just stupid actions you had to preform, like to use and unthinkable item on a unthinkable place.