Little trivia about the NES version of Maniac Mansion. It's a straight port of the SCUMM game engine so it's using a slightly modified version of the DOS version script under the hood, which is why the steel security door used for the copy protection still exists. All the DOS version scripts and objects that were deleted for censorship or to remove the copy protection still exist in their original rooms and simply had their hotspots deleted. They can all still be interacted with by hacking them into your inventory. That includes this extra way to die which is normally exclusive to the DOS version by having Bernard read the copy protection warning sign.