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After 40 Years, Huge NEW Mario Glitch Discovered

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Mario 2J Speedruns are Crazy

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The Greatest Super Mario Bros. Speedrun of All Time - Warpless Speedrun Explained

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What is HAPPENING in Super Mario Bros. Speedrunning

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After 39 Years, NEW Mario Levels Discovered

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The Biggest Lie in Mario Speedrunning

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The Future of Super Mario Bros. Speedruns

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After 44 Years, Someone Beat the Donkey Kong Kill Screen

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The Craziest Glitches in Super Mario Bros.

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451 is Possible - Super Mario Bros. DX Speedrun Explained

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Why Super Mario Bros. is more Genius than you Think

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The Most UNDERRATED Mario Speedrun - Explained

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The Mario Speedrun where you... Walk

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452 is Possible - Mario All-Stars Speedrun Explained

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The Absurd History of Level 8-2

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Super Mario Bros. has a Secret Ending

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Speedrunners Made History with Luigi - SMB2-J Speedrun Explained

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453 is Possible

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How Speedrunners ALREADY Completely Broke Mario Wonder

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The BIGGEST Milestone in Mario Speedrunning History

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This Guy is Literally TOO GOOD at Speedrunning

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Can you beat Super Mario Bros. if the Floor is Lava

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453 is Almost Possible

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Mario Speedrunning History... is WRONG

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Famous Mario Speedrunner Caught CHEATING

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Warping in WARPLESS Speedruns

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This Mario Romhack is Unbelievable

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NEW ways to get 1-Ups in Super Mario Bros.

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Encountering One of the Rarest Glitches in Super Mario Bros.

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What if there was a Super Mario Bros. 5

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