Help Pud get some great Dubble Bubble gumballs! Line up a row of gumballs along the bottom of the gumball machine so that they will roll out to Pud. Instructions: Use the left and right arrow keys on your keyboard to move the gumball shapes to the left and right. Use the up and down arrow keys to rotate the shapes and move them into position. The gumballs will dissappear when you complete a row.