(In the 1996 version, Polly ominously mentions an 'extra credit question' right at the beginning, which gets revisited at the end as a gag. The 2001 version cuts the extra dialogue out so Botley and Polly will shut their yaps and you can get on with saving the world. The dialogue is fun, but at some point it slows the game down.
But I can understand why the programmers might have removed these. The dynamic interactions between the characters is the main reason why I love this game and keep coming back to it year after year. Characters have longer introductions, Botley explains how to play the game more thoroughly, and Polly and Botley bicker more before starting a game. The main difference between the 19 editions is that the original one has a lot more dialogue. To whomever found it, thank you very much. Since then I've been playing my library's 2001 copy, and after the library got rid of its CD-ROM collection, I've been playing abandonware copies, all of them 'updated' editions. I used to have my own, but the disk wore out a long time ago. I've been looking for that for a long time. The Windows 3.X download is the original 1996 version of the game.