Someone not too long ago posted a time attack of Maniac Mansion. They say in the beginning that they used some editing tools but it shows them beating it pretty quick (even though some parts were going too fast to be on the NES). But I got a good laugh from seeing them beat it fast
I actually played all the way through that remake a number of weeks ago. Good times. Some scripting problems at the end where you can do things that you're not supposed to be able to. But it's not hindering in any way. Very good remake.
I can give gameplay solutions to any part of the game (I think I've beaten it every possible way). So if you've got questions, PM me.