Ludum Dare revealed to me this simple fact -- players don't like to spend time reading stuff in your game. No matter what it is -- game intro, prologue, tutorial, or even super important npc dialogue. THEY. DON'T. READ.

Especially during game-jams when a lot of games need to be reviewed to get those sweet 'Ratings given' points.

So, the secret is:

- Skip button is a must for any long/optional text in your game.

There are some skippable comic pages in our LD40 entry as well:

Everyone love comics... r-r-right?

I know there are could be some exceptions, especially for RPGs and text-based quests.