Super Mario Bros 2 is one of our most competed games. This movie is Aglar and Andrewg's improvement of 00:10.73 seconds over adelikat and Cardboard's attempt to perfect this route.
This time, the authors found new glitches to get to the end faster.
If you are wondering how some of the tricks in this video work, see the Super Mario Bros. 2 tricks page.
You can also see this movie played back on an actual NES.