Go inside the pyramid in Shifting Sand Land. Go to the end of the sandy walkway, on an upper level, where a wired platform is located above a slanted surface. While on top of the grated surface, jump in between the wall and the edge of the grated surface. If done correctly, your character should repeatedly attempt to grab on, fall, grab on, and fall from the edge rapidly until he reaches the end of the line.
Submitted by: Joe DiSalvo