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Maniac Mansion

Class: Licensed
Publisher: Jaleco
Developer: S.A.D.
Region: United States (USA)
4  Cart: Common
5  Box: Average
5  Manual: Average
Peripherals: Standard or Compatible Controller
Extended Play: Battery
TV Format: NTSC
Platform: Nintendo Entertainment System (NES)
Released: 1990
Pak Type:
Standard Cart
Collector Stats & Tracking:
You do not own this, add to a collection:


Sources of Information

Hardware Profiles
1 - NES-SNROM-05
UNIF Board
INES Mapper
Mapper Ctrl
CIC Type

Rom Sets
Type Name Size CRC32
ROMs Combined: 256 KB 0D9F5BD1

Associated Releases:
Reg. Title Code
Maniac Mansion NES-JM-UKV
Maniac Mansion NES-JM-AUS
Maniac Mansion NES-JM-NOE/FRG
Maniac Mansion NES-JM-SWE/SWE
Maniac Mansion NES-JM-HOL
Maniac Mansion NES-JM-ESP/ESP
Maniac Mansion NES-JM-FRA/FRA
Maniac Mansion NES-JM-ITA/ITA

Codes, Cheats & Spoilers
 =>Save Bernard's Life: If Bernard should somehow get killed, have some one
give Weird Ed his package. When Ed tells you about the microfilm, switch to
Bernard. You will not see Bernard, but move the cursor to the roll of
microfilm and GET it. Ta-dah! Bernard's invisible ghost can now be moved
throughout the game... but the "Dead Kid" count will not change... if 2 more
deaths occur, the game ends. You can try this trick with the other kids,
but I can only get it to work with Bernard.
=>Escape From the Dungeon: Have one kid use the loose brick in the dungeon
and the door will open; another kid can dash out of it.
=>Nuke The Hamster: Quite simple... only Razor or Syd can nuke the hamster,
and this can only be done in the original supply of cartridges. Some later
versions have this function removed.
=>VirtualNuker: It is possible to snag things from the microwave while it
is still shut. To make this useful, nuke the hamster but remove it during
the microwaving process. When the microwave finishes its cycle, you will
find some exploded hamster bits inside, even though you already removed the
=>Explosive Keypad: Go through the steel security door to the hallway with
striped wallpaper. Go to the 5th strip to the left of the door and look for
the keypad. "Use Keypad". A digit console will appear. Punch in some numbers
and you will hear some sounds and an alarm. Soon the mansion will blow up.
* This was the copy protection in the PC version of the game; the
programmers kept the device but removed the need for copy protection.
=>Fool Edna: Walk a kid into Nurse Enda's room and immediately switch to
another kid. Wait 20-30 seconds, then switch back. You should be able to
freely move the first kid through Edna's room even though she's inside.
=>Multiple Endings: To see all the endings, you'll need to a)send off the
Meteor via Edsel, b)same as A but kill Dave, c)let Meteor Police nab the
Meteor, d)give Meteor book deal, e)same as D but kill Wendy, f)same as D but
call Meteor Police first, g)first fire off the Edsel, then go to the dungeon
and grab the Meteor, carry him through the destroyed garage, through the
house, and feed him to the plant, h)kill all 3 kids, i)blow up house.

Nintendo Power Top 30
We've recreated the Nintendo Power TOP 30 from Player's, Pro's & Dealer's, here on NintendoAge. Following are all of the issue #'s where this game appeared in the TOP 30, what score it received (# of #votes) and the rank it received in that issue.
Issue Date Score Rank
Nintendo Power #021 02/1991 1,800 19
Nintendo Power #022 03/1991 1,984 17
Nintendo Power #023 04/1991 1,544 16
Nintendo Power #024 05/1991 1,511 22
Nintendo Power #025 06/1991 1,422 21
Nintendo Power #026 07/1991 1,027 27
Nintendo Power #027 08/1991 1,869 16
Nintendo Power #028 09/1991 1,368 24
Nintendo Power #030 11/1991 1,163 28
Nintendo Power #045 02/1993 2,855 40
Nintendo Power #047 04/1993 2,468 46