Extra Mario Bros. NES ROM

Important Information - Read Before Playing

The game found on this page is NOT a commerical ROM. It was made by a third party developer and released under the GNU/GPL license. The game file and the software running it are hosted on an independent third-party server. It is being displayed on DeROK.Net via a link. Before playing this game, please review the following important information. Further questions can be emailed to This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

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Extra Mario Bros.

The most extensive recreation of Super Mario Bros. ever!

Created By: ATA

Game Info: New maps, new graphics, new enemies, new powerups, new physics - it’s practically a new game! And if you can make it all the way to the end, you won't believe the final boss battle!

Other Notes: Unfortunately there is an incompatibility between Extra Mario Bros. and the program which allows the game to run within a web browser. As you can probably see, the game is playable, but the graphics are badly messed up. Despite the glitch, I included this game in with the other playable ones so you could get a feel for how it handles. If you would like to play the game in its full glory, you can download an NES Emulator and the Extra Mario Bros. game patch which are found on the main Super Mario Bros. ROMs page.

To begin playing, you must click the game screen with your mouse. Then the keyboard controls will work.