...Given the large number of keys needed to play a game properly and the limited space on the armchair a solution was to set up nine select-able keys displayed on a screen where a joystick controls which button is highlighted, when the user presses an action button the key that is highlighted will be pressed on the computer.
The controller's display first shows a menu screen where nine different profiles can be selected. These profiles hold different key presses for the game and other special features. For example Alien requires the left and right mouse buttons to be held together, this is done using one of the nine keys on the display.