"The whole interface for Maniac Mansion came from David. He experimented a little bit with that kind of stuff in Labyrinth, where you could choose things. I hated playing text adventures, where I had to type everything. I just hated that. So it was about coming up with an interface where I could point at the words. Again, it was reducing that verb set, picking from this small set of verbs and small set of nouns and simplifying that."

"You didn't have to guess what word they were looking for," says Chip.

"Yeah," says Ron. "You would just point at the thing or touch the thing."

"You knew what the universe of possibilities was," says Peter.