The following are known Game Genie Codes for Maniac Mansion on Nintendo Entertainment System (NES).

1. All Codes Start Out As 0000
   SEXGKASZ
   Note: This includes Edna’s Phone Number (Will show the wrong number in the bathroom), the Safe combination (Won’t be shown correctly in the telescope), the Seckrit Lab inner door (which always starts out as 0000), and the Polices’ Radio number (which the poster won’t show correctly). The ‘secret’ keypad near the ‘Steel Security Door’ has a randomly generated password every time it’s used, so don’t use it.

These codes have been collected from around the web and all credit goes to the original poster of the code. Notes associated with any code may be written by the original code creator. Some notes have been added or modified from their original source.

Do you know any additional codes for this game? Is there an error listed above? Let us know about it and we’ll update the list.

Code Indexes for Nintendo Entertainment System (NES)

• Action Replay Code Index for Nintendo Entertainment System (NES)
• Game Genie Code Index for Nintendo Entertainment System (NES)
• Preformatted .CHT File Index for Nintendo Entertainment System (NES)

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