We care about our visitors and respect personal information which you share with us. It is important to us that you are aware of data we are collecting about you and how we are doing it. Due to this we are updating our Privacy Policy and Cookie Policy. These updates will come into effect starting from May 25, 2018.
By using the site izismile.com after May 25, 2018 you are acknowledging that you agree with the changes made in Privacy Policy, which you can read in detail here
Apparently, the original "Super Mario Bros." has way more levels than 32 or so. It has hundreds of them! Those levels are hidden away in every cartridge that is gathering dust in the boxes at our homes. They also weren’t intended to be found as they are “broken” and messed up. For example, there are enemies that have no place within them, like a Goomba underwater… However, some Nintendo enthusiasts have cracked the process and were able to unlock these hidden levels. Here is how you can do it.
There's one well-known secret world in the original 'Super Mario Bros.' — it's called the 'Negative World.'
It's just one of many of the hidden levels contained in "Super Mario Bros.," and it's perhaps the most widely known. You can reach it by performing an awkward backwards jump in the game's second level, 1-2, like so:
But that's just the beginning. There's a far more involved hack that enables anyone to access hundreds of hidden levels in the original 'Super Mario Bros.' You need three items to pull it off — first up: an original 'Super Mario Bros.' cartridge:
BEWARE: Yes, this might break your NES, and your game. Try this at your own risk.
Replace the 'Super Mario Bros.' cartridge with the 'Tennis' cartridge in your top-loading NES. Press the reset button. The menu screen should appear, like so:
If you can get your hands on a working Game Genie — a device for hacking "cheats" into games —there's an even easier way to just input a code and access all these levels.