To configure your controls, edit the cfg file. The controls appear in the order:

Player 1 Left
Player 1 Right
Player 1 Up
Player 1 Down
Player 1 A
Player 1 B
Player 1 C

Player 2 Left
Player 2 Right
Player 2 Up
Player 2 Down
Player 2 A
Player 2 B
Player 2 C

The values are hexadecimal or decimal keycodes. You can find a list of the
values here:

WINDOWS
For special keys: http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731%28v=vs.85%29.aspx
For letter keys: http://www.asciitable.com/ (Use the capital letters)

LINUX
http://cgit.freedesktop.org/xorg/proto/x11proto/plain/keysymdef.h (Use the lowercase Latin letters)
