Play Nintendo NES Video Games Online

Back to main list of All our NES Games

Maniac Mansion NES Video Game

Free Online Web Browser NES Game Play. This NES emulator supports mobile touch devices (i.e Iphone). Complete instructions and keyboard controls towards bottom of the page.

Click ‘Enter’ Key to Start Game. Main keyboard buttons are X and Z.

Click Game Window Size Button to Zoom Game Size between default, 1.5X and 2X

This image has an empty alt attribute; its file name is nes.jpg

If you are a little tech savvy, we also offer all these
NES games in a JAVA Emulator.

Keyboard Controls
Gamepad Button Player 1
Left Left Arrow
Right Right Arrow
Up Up Arrow
Down Down Arrow
Start/Pause Enter
Select Ctrl

Click on the game window and hit the ENTER key to start the game (you might have to hit start twice) . On a computer you can click the Game Window Size button to rotate between default, 1.5X and 2.X game window size. On mobile phones and Iphone use the gameplay control buttons shown on your screen (only on mobile) to play and start the game. If you grew up in the 80's you shouldn't need additional gameplay instructions. If you really need help or instructions playing this game, we have the The Official Nintendo Player’s Guide from 1987 to help you out.



"retired" physician turned mad scientist; Nurse Edna, a former 
health care professional who's as strange as the good doctor; 
Weird Ed, a teenage commando with a hamster fetish; and 
then there's Dead Cousin Ted, and the tentacle, and 
somebody--or something--else... And what's a nice young 
cheerleader named Sandy doing in Dr. Fred's basement?


YOUR GOAL is to direct a team of three local teenagers 
(including Sandy's boyfriend, Dave) through the mansion to 
rescue Sandy.  As you explore, you'll meet all the strange 
inhabitants of the mansion, and you'll discover Dr. Fred's 
ambition to control the world--one teenager at a time.


Do not use a front or rear projection television with your 
Nintendo Entertainment System (R) ("NES") and NES games.  
Your projection television screen may be permanently damaged 
if video games with stationary scenes or patterns are played 
on your projection television.  Similar damage may occur if 
you place a video game on hold or pause.  If you use your 
projection television with NES games, Nintendo will not be 
liable for any damage.  This situation is not caused by a 
defect in the NES or NES games; other fixed or repetitive 
images may cause similar damage to a projection television.  
Please contact your TV manufacturer for further information.


You'll find that each of the seven teenagers you can choose 
from has special skills, talents, and weaknesses.  And each 
of the crazy occupants of the mansion has goals and desires 
that can help or hinder your team, depending on how you handle 
them.  The story--and your approach to rescuing Sandy--will 
be different depending on which kids you choose and how you 
interact with the people and things inside the mansion itself.  

Each of the possible stories in MANIAC MANSION is really a 
large, complex puzzle made up of scores of smaller puzzles.  
From time to time, movie-like "cut-scenes" reveal clues about 
the story and what's going on elsewhere.  As you discover the 
smaller puzzles that make up each story line, you'll find that 
most will have to be solved in a certain order.  There can 
be several ways to get something done--but of course, there 
is always a best way.  Good luck!


Press "B" to move from the title screens to the character 
selection screen.

Control Pad/Move Arrow

Select Button/Get Use Open

Start Button/Save

B Button/Fast Forward

A Button/Click



Move the arrow with your directional controller over the kid's 
portraits and press the A button when the arrow is over a kid 
that interests you.  You will see a short biography of that 
kid on top of the screen.  Dave (Sandy's boyfriend) will always 
be on your team, so you can select two other kids.  The first 
two portraits you click on will be highlighted with a white 
border, like Dave's.  The white border means that the 
character in the portrait is selected for your team.  If 
you'd like to change your selection, just click again on the 
picture of the kid you don't want.  The border will disappear 
and you can select another one.  You can win the game with any 
team, but the story line and many of the puzzles you need to 
solve will be different for each combination.  When you 
have completed your selection, move the arrow to the 
"start" icon and press the A button.



After the title sequence, you will see your team standing in 
the driveway next to the mansion.  When they all turn and 
face you, you will be directing the actions of Dave (you can 
switch control to a "new kid" if you'd like--see page 15).

1. THE MESSAGE LINE is the line at the very top of the screen.  
Words spoken by any of the characters appear on this line, 
as well as game related messages (for example, "PLEASE 

2.  THE ANIMATION WINDOW is the largest part of the screen 
where the animated world of the mansion is displayed.  It 
shows the "camera's eye view" of the room that the currently 
active character is in.

THE SENTENCE LINE is directly below the Animation Window.  You 
use this line to construct sentences that tell the characters 
what to do.

4.  VERBS must be selected from the groups of words in the 
columns below the SENTENCE LINE.  You will always be able 
to see all the verbs used in the game--they will not 
change as the game progresses.  To select a verb, position 
the cursor over the word and press A.  In the case of the 
most commonly used verbs (i.e. GET, OPEN, AND USE), you 
may select one of these verbs automatically by pressing 
the select key.  Each time you press Select you will activate 
one of the three verbs.

5.  THE INVENTORY is the area below the Verbs.  Each character 
on your team has his or her own inventory.  It is empty at 
the beginning of the game (except for each character's 
CD Player--see page 18); the name of an object is added 
to a character's Inventory when the character picks the 
object up during game play.  There is no limit 
to the number of objects a character can carry.  When 
there are more than four items in an Inventory, an arrow 
icon appears in the middle of the list.  Use it to scroll the 
list down or up.


NOUNS (objects) can be selected in two ways.  You may select 
a noun by placing the arrow over an object in the Animation 
Window and pressing A.  Most objects in the mansion, and 
all objects that are usable in the game, have names.  If 
an object has a name, it will appear on the Sentence Line 
when you move the arrow over it and press A.  You may 
also select nouns by clicking on words in the Inventory.

TO MOVE A CHARACTER AROUND, move your arrow to a place 
in the Animation Window that you want your character to 
go.  Press the A button when your arrow is in the right 
place.  Your character will automatically move to that 
location, assuming he or she is able.


SENTENCE LINE, press the A button when the arrow is over 
the last object that will be in the sentence.  Example: You 
wish to have Dave use a key in a door.  Press the A button 
when the arrow is over the verb "use."  Then move the arrow 
to the key in Dave's Inventory and press the A button.  
Finally, move the arrow to the door in the Animation 
Window.  Make sure the sentence line reads "Use key 
in door" and press the A button.

USING THE VERBS: USE, OPEN OR GET.  A quicker way to 
form a sentence using the most commonly used verbs in 
Maniac Mansion: USE, OPEN or GET.  Simply move your arrow 
over an object to be included in the sentence (such as 
"radio").  Press the "SELECT" button to cycle through 
the verbs: USE, OPEN or GET.  Press the A button when 
the proper verb has been inserted into the 
sentence.  Example: USE Doorbell.  This special use 
of the SELECT button allows you to quickly open doors, 
pick up items, or use items that don't need to be 
"turned on" first (Or items that have already been turned on).



Cut-scenes are short, animated sequences--like scenes from 
a movie--which can provide clues and information about 
the characters.  When you are viewing a cut-scene, you do 
not direct the actions so the text below the Animation Window 

You may "fast-forward" through a cut-scene by pressing your 
B button.



READ THE SIGN ON THE FENCE.  Point the verb "read."  Click A.  
Point to the sign.  Click A.  Dave will walk over to the 
sign and will tell you what it says via the Message Line.

DIRECT DAVE TO WALK TO THE MANSION by moving the arrow to 
the left edge of the screen and pressing the A button.  
Have him continue walking to the left until he's in front 
of the mansion.

TO GET INTO THE MANSION, try the sentence, "Pull door mat."

FIRST, select "Pull" by moving your arrow over the word in 
the Verb List and pressing the A button once.  "Pull" now 
appears on the Sentence Line.

SECOND, select the mat by moving your arrow over the mat 
and pressing the A button.  "Pull door mat" on appears 
on the Sentence Line and pressing the A button 
will complete the task.

THIRD, pulling the mat will reveal the key needed to get 
into the mansion.



NEW KID--Select "New Kid" from the menu to bring up the list 
of kids in your party.  Move the arrow to the kid you wish 
to activate and press the A button.

Don't forget that you have to have two other team members 
in order to try and rescue Sandy.  Each kid is a vital part 
of your team.  Your task is to find out how they can help.

START BUTTON--By pressing the "START" button at any point 
during the game, you will go to the save game screen.

There are four choices on the save screen:

BACK TO THE MANSION--Will put you right back where you 
left off in your current game.

SAVE GAME--Saves your progress in your current game.

RESTORE SAVED GAME--Will put you back where you last saved 
your game.

NEW GAME--Restarts the game.


KEYS, KEYS, KEYS--There are several keys to be found inside 
the mansion--all of which serve some purpose.

WHAT DO THE KIDS DO?--All the kids have a talent, and it's 
important when you're selecting your team to choose wisely.  
Here's a quick rundown of what these kids can do:


BERNARD can fix things with the proper tools.

RAZOR has plenty of musical talent.

SYD'S a musician too!

WENDY aspires to be a novelist.

JEFF can fix the telephone.

MICHAEL is a photographer, and can develop film.



CD PLAYERS--Each kid is equipped with his or her own compact 
disc player.  When the CD player is on, a background "theme" 
song plays.  Turn it off and the character will not have 
any background music.  NOTE: Every kid has a CD player.  
To eliminate all theme music, all 3 CD players must be turned off.

THE PACKAGE--During the game, a package will be left at the 
mailbox outside the mansion.  You'll know it's there because 
the mailman will ring the doorbell.  Get that package!!!  
At the very least, prevent Weird Ed from getting it.  You'll 
need something on the box.  The package itself comes in handy too!

BULLETIN BOARD--The enclosed poster will give you many hints.  
Refer to it often.  Here are a few other hints:
-Being sent to the dungeon isn't bad.  It can even be good.
-There is a loose brick in the dungeon.
-Sometimes you can get past someone by having a kid get 
captured, creating a diversion.
-The flashlight is useful in dark places.


MANIAC MANSION HINT BOOK--For just $7.95 (includes shipping 
and handling), order a Maniac Mansion hint book, a complete 
guide to the game with over a hundred clues , solutions to 
all of the puzzles, and helpful hints such as how to get the 
combination to Nurse Edna's wall safe or how to drain the 
radioactive swimming pool.  Get a glimpse of the entire 
mansion with our comprehensive map, which shows you each 
room, check your inventory against the object listings, and 
enjoy a full narrative of the adventure, from start to 
finish, from Dave's perspective.  Just call 1-800-STARWARS 
(1-800-782-7927) between 8 am and 5 pm, Pacific Time, 
Monday through Friday and ask for the Lucasfilm Games 
catalog department.  In Canada call 1-800-828-7927.  
Or send a check or money order to Lucasfilm Games, 
P.O. Box 5896, San Mateo, CA  94402-0896.


*This Jaleco Game Pak is a precision-crafted device with 
complex electronic circuitry.  Avoid subjecting it to 
undue shock or extremes of temperature.  Never attempt 
to open or dismantle the game pak.

*Do not touch the terminal leads or allow them to come 
into contact with water or the game circuitry will be damaged.

*Always make sure your NES Control Deck is SWITCHED OFF 
when inserting the Game Pak or removing it from the Nes 
Control Deck.

*Because of the SAVE GAME FEATURE, you should hold RESET 
while removing the Game Pak.


310 Era Drive
Northbrook, Illinois  60062
(708) 480-1811


These games are being emulated natively in Javascript. No plug-in is required in your web browser, but the emulator does require a modern web browser. Game speed and emulation only runs as good as your computer or mobile phone. If you have a fast, modern computer these games will run very smoothly.
Sorry, no sound on mobile devices.

image 3
Maniacmansion Arcade Game Emulated on the Nintendo Entertainment System (NES). Play Maniacmansion in your web browser or mobile phone. This NES emulator provides very accurate Maniacmansion gameplay. Maniacmansion is a classic 1980s NES video game.