You can play using joystick, or with following keys:
*O -> → LEFT*P -> → RIGHT*Q -> → UP*A -> → DOWN*SPACE -> → FIRE / SELECT*ESC → PAUSE (Press ESC once, then any other key to resume game) / ABORT GAME (Press ESC twice)
ESC -> PAUSE (Press ESC once, then any other key to resume game) / ABORT GAME (Press ESC twice) Press fire into menu, and program will detect automaticly wich which type of control are you using.