King's Quest 2 History
King's Quest II reminded me a lttle of Wizard and the Princess. We saw how the previous games (Mystery House and King's Quest 1) were received by the public, and I was anxious to try my hand at a bigger story right away. Graham would be king by now. What quest should a lonely king go on? What should he see through the magic mirror? A maiden in distress! I started to foresee a family for Graham in the future. I couldn't fit some ideas into King's Quest 1, so I was happy to get a chance to include King Neptune, Dracula, everyone from Little Red Riding Hood, and that infamous rickety old bridge you could only cross so many times.
There's an "Easter Egg" in King's Quest 2. Find the cave with a symbol of a black bat over the entrance. Walk sound off the screen, then walk back to the cave. Keep doing this, and you'll see the Batmobile drive out.
(From Roberta Williams Anthology Manual, 1996)