This gentleman has taken the world record for best time in Super Mario World without using an emulator or any tools to assist him. He played it directly on a Super Nintendo and beat the game in one sitting.
He did however, use an insane, complex and overly involved glitch. By effectively “hotpatching” and rewriting the game’s code using certain items and animations, Twitch user SethBling was actually able to warp directly to the end credits of the game. It’s difficult to explain as effectively as he does so see for yourself below: