In the early incinerator room, my dad crossed some wires and went back down to test them. Turns out he crossed wires that now keep the claw from ever coming down to pick up the robot. Ever. No combination of settings on the panel will drop the claw.
We sadly assumed he was stuck using a previously saved game (neither of us thought there was a way to hoist oneself with one's own petard, so to speak), but when he quit the game and came back in, suddenly the claw will drop.
Logically, this makes no sense. The wires are still improperly crossed, so shouldn't he forever be unable to get that claw to drop? Don't get me wrong -- he's happy about this! -- but why does this happen? Just a happy game glitch? Or will he have the same claw trouble tomorrow when he's back in-game?