A replay is basically a transcript of play, designed with both pedagogy and entertainment in mind. They are apparently popular in Japan, which is how I first became aware of them (through Andy Kitkowski). I think it’s a good model for delivering a little bit more than just an extended example – the format allows you to communicate something about the color and texture of play and what you expect in terms of player behavior to a certain degree. It’s an interesting thing, and I’m including one in Fiasco.
Here’s a rough of the replay that will be included in the game (content, not presentation). There will also be little diagrams and a bunch of cross-references to the text. The text, in turn, will reference the replay for examples of stuff.