Superfast Mario Bros. 2 is a ROM hack that takes Super Mario Bros. 2 and speeds it up by a couple notches. All four characters move at the same really fast speed, loading times are much faster, and a couple of other neat speed-unrelated things were added such as the ability to enter doors while holding objects.
In this run, chatterbox blitzes their way through the game with the use of warps in record time.