Move crosshairs to target enemies



            joystick to move

            button 0 to fire



Esc* * * * * * * * * * pause & show menu

while menu is active:

  S* * * * * * * * * * * * * * * * sound

  R* * * * * * * * * * * * * * * restart

  C* * * * * * * * * * clear high scores

  W* * * * * * * * * * write high scores
[eof]