How does the original Super Mario Bros. load level data?

How does the original Super Mario Bros. load level data? - Super Mario and Yoshi Plastic Figure

I understand how the ‘minus world’ glitch works, and that there are hundreds of other levels. What I can’t find much of is how the game actually loads level data. Where is the information for the 7-2 clone in 36-1 coming from? Why are some other inaccessible levels just infinite pits?

EDIT: from this video, we can see there are glitched tiles far enough beyond the flagpole (

). Where is this information coming from? Is Mario exploring memory at this point?





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How does the original Super Mario Bros. load level data? - Shallow Focus Photo of Gameboy Console
How does the original Super Mario Bros. load level data? - Focus Photo of Super Mario, Luigi, and Yoshi Figurines
How does the original Super Mario Bros. load level data? - Creative artwork with Frida Kahlo painting decorated with colorful floral headband on graffiti wall



How much memory did the original Super Mario Brothers take up?

Super Mario Bros uses 32KB of that space for the game code and music called PRG ROM, and 8KB for the CHR ROM I showed earlier. Now, as we all know, later in the life cycle of the NES, there were many more advanced games.

How much data does Super Mario Bros use?

With the initial download in Super Mario Run complete, the game used relatively little of our data. Playing the initial three levels for five minutes used up 3.2MB. Firing up the first level over cellular LTE data added 3.1MB to Super Mario Run's overall count, and going between the levels afterward only used 0.1MB.

How Super Mario Bros was made into 40 kilobytes?

1-Up Mushrooms (sometimes parsed as 1 up Mushrooms, 1UP Mushrooms, or 1-UP Mushrooms) are green mushrooms that give the player an extra life. They are usually the rarest mushrooms, but they can still be found in almost every game a Super Mushroom has appeared in, and even some it has not.



SUPER MARIO BROS ACTUALLY HAS A SECRET CODE!




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Images: Pixabay, Caleb Oquendo, Pixabay, Brett Sayles