King's Quest VI: Heir Today, Gone Tomorrow

The manual that came with the game, the "Guidebook to the Land of the Green Isles," was necessary to beat the game, as it contained a translation of an in-game language and phrases used as answers to riddles to advance the plot. Sierra used this as a way to prevent the game from being playable if it was pirated.

On the short path, the guard dogs Wolf and Bay occasionally swap names (and voices) as well as the dogs Jowls and Mite when confronted by Alexander.

In the 1997 Kings Quest Collection. A Windows 95 version features high resolution graphics portraits of Characters Such as Prince Alexander and other characters, even the icons and items are featured in high detail graphics. However after the end of the voice acting Wedding scene. The game crashes and shows the end credits but it only had the instrumental song "Girl in the Tower" in the Text version end credits. However, this version won't work in the Windows XP or 7 mode.