to beat the second level (underground) you need to go into the bottom part of the backwards L tunnel at the end of the level. (be sure to jump over onto the actual tunnel as the floor will fall out). When it brings you to the next section, use the first flagpole (with the blue top) to jump OVER the second flagpole. then come back (as in the first level) and get the yellow flagpole. good luck!! In only took like 104 lives to figure out