Super Mario Bros 3X

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Super Mario Bros 3X

Fan-made version of Super Mario Bros 3. Bowser and the Koopa Kids Invaded South Mushroom Kingdom.
Mario must stop them before it’s too late. Can you complete all 70 levels? Bewarned, most retro games are hard.

As Always, Good Luck and Have Fun.

Controller to Keyboard Mapping:

Only keyboard is required to play. Pretend your keyboard is the a game controller. Check the controller setting by clicking the "Set Up Keyboard" button at the bottom of the game. A console-to-keyboard mapping will be displayed, for example, a - Z, mean "a" button on console/joystick is equal to Z key on your keyboard. console-to-keyboard mapping will be displayed

Start/Pause = Enter

Default Mapping
Inside The Game Your Keyboard
Move/D-PAD =[W],[A],[S],[D] on Keyboard
A, B, X, Y Button =[J], [K], [I], [L] on Keyboard
L, R Button =[U], [O] on Keyboard
START, SELECT =[Enter], [Space-Bar] on Keyboard

You can change the controller to whatever you want.

SAVE progress anytime to your local computer and come back later and load it up by using the "Save State" and "Load State" button at the bottom.

You are now playing Super Mario Bros 3X Game, a high quality Mario Games on KBH, for free. One of 16113 games listed on KBH. Part of our Hack Games, Mario Games, Platform Games, Retro Games, and SNES Games gaming categories. If you enjoy playing Super Mario Bros 3X online game, we also recommend you play Super Mario World Master Quest 3, Mario’s Amazing Adventure, and Dr. Mario World. Super Mario Bros 3X has been liked by 102 people. We have fun games for the entire family to enjoy.