Shoot down bombers and

        bases to win each level

     Avoid or destroy interceptors


 Accelerating to full speed at the top

  of the screen will engage hyperdrive

 Activate joystick with B0 during play

                   I
           move  J   L   move
                   K

F / B0 * * * * * machine guns (unlimited)

D / B1 * * * * * * * * missiles (limited)

Esc* * * * * * * * * * * * * * * * *pause