Blank Top: Choose this option if you wish to choose the placement of your buttons and joysticks yourself.
Single Joystick Top: This top is setup to utilize one 4 or 8 way joystick and 6 game buttons. At the top are 4 utility buttons for functions like credit, pause and one or two player.
Dual Joystick Top: This top is setup for two joysticks. This configuration is best for games like Robotron, Karate Champ, Smash T.V. or Crazy Climber that utilize dual joysticks. This is also a great setup for left or right handed players.