Hank Ross, one of Midway's founders, got the idea of letting the clown [in an arcade video game] retrieve missed balls by kicking them back into the air. It was decided that on the easy first "rack," or skill level (some games have as many as 20 racks), the clown would get rid of balloons by popping them with a spike on his hat. But on the second level, the balloons would pile up on his head, so that successive balloons would have a shorter distance to fall from the top of the screen, and the clown would have to pedal faster to get to them. To identify racks as the game progressed, additional falling objects were introduced - flowers, hats and beach balls.