King Oddball is... you. He is this large orb just hanging out in the sky with the world's longest tongue. With it he snags rocks one at a time out of the upper left corner of the screen while his tongue wags back and forth like a pendulum from the right to the left and back to the right again. All you need to do is press the button to let go, and the tongue releases the rock with then arcs out towards the desired target. Usually the targets include some combination of tanks, helicopters and goofy little alien dudes. Stuff that you obviously want to hit with rocks.