Note that this glitch requires the use of a NES controller that allows Left and Right on the D-Pad to be pressed at the same time. If you hold Right on the D-Pad, then press Left, you will move to the right with much higher speed than is normally possible. About one second after moving extremely fast, release Left on the D-Pad and you'll continue to move at that speed until blocked. (Note: This glitch will not allow you to go super-fast to the left, just to the right.)