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Universal Inner Door Code for Maniac Mansion

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This page contains Maniac Mansion Hints for NES called "Universal Inner Door Code" and has been posted or updated on Jan 23, 2008 by dude2207100. Let us know what you think of this Hint by thumbs voting.

Game Boxshot & Details
Maniac Mansion Cheats Boxshot
  • Developer: Lucasfilm Games
  • Publisher: Jaleco Entertainment
  • Genre: Adventure
  • Release: Not Set
  • ESRB: Not Set
Game Hints

Universal Inner Door Code

At any time before Dr. Fred plays the fixed Meteor Mess game (meaning you have repaired the wires in the attic), you can enter 0000 as the inner door combination and the door will open. Presumably, the door combination is not stored in memory until the Dr. Fred Meteor Mess cut scene plays. The Dr. Fred attempting to play Meteor Mess cut scene will not set the inner door code.

From: dude2207100, Jan 23, 2008
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