TILT = DEFAULT
   # DEFAULT: cursorUp (keypad 8) tilts turret up
   # REVERSE: cursorUp (keypad 8) tilts turret down

BACKTURN = DEFAULT
   # DEFAULT: cursorDownRight (keypad 3) backs up and turns to left
   # REVERSE: cursorDownRight (keypad 3) backs up and turns to right

MISSILE = REVERSE
   # DEFAULT: cursorUp (keypad 8) steers missile up
   # REVERSE: cursorUp (keypad 8) steers missile down
