Cave Johnson, the eccentric, unstable president of Aperture Science, was going to have a more purposeful role in Portal 2, writer Erik Wolpaw said during the Plot vs. Play panel (hosted by Joystiq's Ben Gilbert) at PAX Prime today.

Wolpaw described the following scene, which was cut from the final version of Portal 2 after Valve realized it was too vague mechanically for players to enjoy: Cave Johnson's voice said, "I'm Cave Johnson" over the intercom, followed by, "No, really, I'm Cave Johnson. Look down." Cave's personality was trapped in a computer and he begged to be unplugged, while players found use in his hardware and had to push him against a wall to jump on a ledge.

In the end, the gameplay didn't fly and the scene was removed entirely. We like to think that means Cave got his wish, and he's not still trapped inside a box, screaming about lemons and plugs.