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How Super Mario World Ran Pong and Snake on a Real SNES

At AGDQ 2014, Masterjun’s Super Mario World demonstration ran Pong and Snake clones on a real SNES. The binary arrived through eight controllers connected to the console’s ports.
Length2 min Posted Quest giverVGSources Team
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Masterjun’s “Super Mario World (Total Control)” demonstration made a Super Nintendo run Pong and Snake clones, along with a menu and ending screen. The surprising part was not a modified cartridge: Hackaday reported that it ran on a real SNES with an unmodified copy of Super Mario World, while the new program was sent through the console’s controller ports.

How did Pong and Snake run inside Super Mario World?

The demonstration used a tool-assisted speedrun (TAS) exploit to take control of the game and make the console run new code. Hackaday’s 2014 account describes the results—a menu, Pong and Snake clones, and an ending screen—but does not give a step-by-step explanation of the exploit chain. It is therefore more accurate to describe what the demonstration achieved than to claim a particular technical sequence.

The presentation took place at AGDQ 2014. TASVideos’ TASBot history identifies the work as Masterjun’s and names dwangoAC and micro500 as presenters, with TheGreekBrit providing couch commentary. (The URL in the supplied source is TASVideos’ TASBot page.)

How did the program get into the SNES?

Hackaday reported that dual multitap cables connected eight controllers to the SNES. Their combined inputs provided a data path: the binary for the demonstration was downloaded through the controller ports. The article does not identify the multitap brand or model, so the setup should not be taken as a recommendation for a specific adapter.

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This distinction matters: the cartridge was described as unmodified. The account says the binary was downloaded through the ports; it does not say that the original game was permanently rewritten or that the program was installed on the cartridge.

What does “tool-assisted” mean here?

Hackaday explains that TAS runs are built with emulators and scripts, often by constructing inputs frame by frame. A TAS can use game bugs and glitches; in this kind of presentation, finding and exploiting a route into new behavior can be the point, rather than simply finishing the game quickly. Scripts can be replayed in an emulator or sent to a physical console through hardware that translates the inputs.

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Hackaday describes such playback as open loop: the script supplies inputs but does not receive feedback from the game as it runs. On a physical console, timing differences—including variation in oscillator crystals—can make the sequence desynchronize. This is a caveat about the setup described in that article, not a claim that every TAS replay fails on hardware.

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What the demonstration establishes—and what it does not

  • Established in the contemporary account: the demonstration ran Pong and Snake clones, a menu, and an ending screen on a real SNES with an unmodified Super Mario World cartridge.
  • Reported transfer method: eight controllers connected through dual multitaps carried the downloaded binary through the controller ports.
  • Not established by the available accounts: a complete exploit walkthrough, the original input file, the multitap models, or an independent reproduction of the technique.

Hackaday’s report is Adam Fabio’s January 10, 2014 explanation of the demonstration. TASVideos supplies event context for the AGDQ 2014 presentation; neither account, as described here, provides enough detail to reconstruct the exploit or assess its reliability through a separate test.

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