If we’re thinking of the same speedrun, that was Super Mario Bros. 3, which could be glitched by exploiting a flaw in its input polling. Since Super Mario Bros. doesn’t do double input polling, I don’t believe it’s susceptible to the same trick.
If we’re thinking of the same speedrun, that was Super Mario Bros. 3, which could be glitched by exploiting a flaw in its input polling. Since Super Mario Bros. doesn’t do double input polling, I don’t believe it’s susceptible to the same trick.