A novel element is added to a bowling game by incorporating an ultraviolet light-sensitive dye or pigment in a bowling surface, a gutter, a bowling ball, andor a bowling pin. Baffles are secured in the side wall seams and extend diagonally across the interior of the bulk bag to maintain the bulk bag in a rectangular cross sectional configuration when filled with dense materials. A wrist member has a proximal portion pivotally connected to the distal end of the linking arm to rotate around a second pitch axis to produce rotation in second pitch. In another phase, the inductor current ramps downward.