So basically go up the ladder in the middle of the level.
Try to collect all of the blue bubble-like things. The last 4 columns on the right are uncollectable.
Press 1 & 2 to toggle between the display layer, and the layer where every thing happens.
What really bugs me is that if I move the bubble-like things below, or to the first part of the level, they are all collectable. Also at the start of the frame, you place the rainbow colored object name "Lil M'" on top of the 4 columns that are uncollectable, they are collected. Anyone have any idea as to what in the world is going on?