Maniac Mansion Action Replay Codes (USA)
This page contains the Action Replay codes that I have available for Maniac Mansion (USA), a game for the original NES (Nintendo Entertainment System). If you're playing on an emulator, you'll typically be able to put these codes into the program through a built in option. Anyone who is really old school and playing on a physical console will have to purchase a physical Action Replay device to use these codes.
If you don't see the code you want on this page, I recommend you return to my Maniac Mansion Guides Index and choose a different section.
Control Character Modifier Codes
Death Counter is 0: 6161:00
You will still die but the game doesn't count it. That means the game won't end after 3 deaths.
If you walk as a dead player, you still must give exploded hamster in Ed's room
CD Player Is Always Turned On (Although No Music Can Be Heard): 6638:63
Ed Always Answers Door Bell: 615C:00
Useful if you want him to leave once his package is delivered
Ed Likes you, but won't leave room: 6163:01
Play as Different Characters: 0046?B7:??
Fast Doorbell, Package, and more
6381:FF
636D:FF
Edna's Phone # is 0000
6133:00
6134:00
6135:00
6136:00
Police Radio Code is 0000
614D:00
614E:00
614F:00
6150:00
Safe Combination is 0000
6137:00
6138:00
6139:00
613A:00
Seckrit Lab Code is 0000
613B:00
613C:00
613D:00
613E:00
Security Door is 0000
613F:00
6140:00
6141:00
6142:00