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]
