Some of them also had some cheat/debug commands you could get into. I know you could teleport to other screens, but I don't recall if you could use a command to get an item, particularly in PQ1. Or if there was a way to get back to the state you were in before that if you e.g. teleported to the station to pick up something and then tried to teleport back to the screen where you needed the item.

I remember I could not get the obscure nonsensical spells right in KQ3 but I could sort of skip past them to see most of the plot.