Dr. Mario World gained $1.4 million and 7.5 million installs in first month, but Nintendo's other titles fared better
As video games have evolved, so have the ways that we control them. In the very early days, there were just knobs, joysticks and trackballs. Today's controllers have one or two analog joysticks and anywhere from 10 to 12 buttons. Here's our list of the most memorable console and PC controllers over the last four decades.