Super Mario Bros 2 is one of our most competed games. This is Phil's contribution. It improves the previous record by Sleepz by 36 frames (about 0.5 seconds) with minor improvements here and there.
All of the tricks are however the same ― tricks which were invented by various authors, such as Sleepz and Genisto.
If you are wondering how some of the tricks in this video work, see the Super Mario Bros. 2 tricks page.