Play Super Mario Bros. 3 Online Free
Comments(26)
UPDATE: IMPORTANT NOTE! This game uses the latest version of the Java Runtime Environment. If you have issues please go here and download the latest version for your browser. I apologize if you have issues when loading this page. The good news is that you now know your Java is outdated 
By far the best Mario game for the NES, and now it can be played online free.
Click in the screen to make it active. I put it here because it is more likely that my site will pass a work firewall 
. Controls and instructions are listed below the game.
To get the player select to pop up on the intro screen you need to hit “Enter” and then “Enter” again after you make the selection. Not sure how to select a 2 Player game though. If someone figures it out please leave a comment. You hit “X” to enter a level. The only other thing that isn’t easily figured out is the selecting one of your items on the World Screen. That is where you can hook yourself up with a mushroom, leaf, plant, etc. Just hit “Z” while on the world screen to access that.
The controls are:
Right Arrow = Move Right
Left Arrow = Move Left
Up Arrow = Enter Section
Down Arrow = Enter Pipe / Duck
X = Jump / Enter Level
Z = Run Faster / Fly
Enter = Start
Be aware of one thing though when you play this. If you switch to another window on your browser you will need to click in the window to de-activate inputs from being for the game. Like if you need to fill out a form or something you need to click on the screen somewhere before it will let you do it. Not sure why at this point, but it doesn’t mean you need to go to drug rehab or anything. It’s just how it is.
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i figured out how to get 2 player game you just need to press Alt Gr putton and that´s it have a nice time playing with you friend.
I couldn’t figure out the controls for the 2nd player, anyone know?
I <3 this game soo much times like 100000000
YALL SUCk I MEAN THIS GAME SUCKS I MEAN U SHOULD LEAVE THE WORLD
!!!!!!!!!!!
the first reaply is a big fake!
i like the troll he’s cool!
very bad
CaN someone tell me how to make player 2 move on the world????
To get to second player you have to hit the ctrl key. Now when you get there does anyone know which keys to use to make the second player move?
i need a controller. a bit difficult with the arrows on the right
awesome game dude i love it!
THIS GAME IS DUMB.
To select 2 player just push ctrl to scroll down n then push ‘X’ to enter like normal
On macs, you press control to move the arrow at the beginning to scroll between a one-player and a two-player game.
does any one know where to get a controler from this game is my favorite
How do you jump?
I know how you choose 2 players. You hit the control key. That key is the select button.
is super mario 3 all ways slow on computer?
wowooo i like this site.
control switches to 2 player, but does anyone know how to save? or can you not on this version…?
It won’t let me into level 1. I press enter but it doesn’t work. D:
If you can get your hands on a cheap $5 PC gamepad/controller (Like a cheap ass Logitech controller since these games don’t require major features) I recommend you do this:
1. Go to Emulator Zone and download one of these emulators for NES.
2. Then go to thepiratebay.org (you need uTorrent or some other torrent software) and search for “NES ROMS”. You should be able to download 1,000 NES games in a folder less than 50MB or so I imagine.
3. Enjoy.
P.S. I believe you can play most of the gmaes with a plain old keyboard too, but a controller is better obviously.
Also, Rosee, you need to click the box with the mouse cursor to make the game window active. THEN hit enter.
I LOVE SUPER MARIO BROS THREE BUT THE BEST THING IS THAT IT IS A VIDEO GAME AND ITS FREEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!
hit control to select 2 player.