> How do I open the ceiling hatch?
InvisiClues for this question (move your mouse over the black-on-black text one line at a time):
? 1) NOTE: This is one of the major puzzles in the game.
? 2) It was designed by a hand-picked team of mathematicians, reverse psychologists and asskickticians to be fiendish to solve yet satisfying when completed - to require lateral thinking and a dash of creativity to identify a solution that, in hindsight is both logical and obvious.
? 3) And you're going to ruin all their hard work by looking up the answer instead of thinking it out.
? 4) Well, you know what?!
? 5) Screw them! All those guys SUCK. The answer is "stand on tippy-toes, then open ceiling hatch with crowbar".