Asteroids Unofficial v1.2

ASTEROID V1.2
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CONTROLS:
   AUTOMATICALLY POINTS TOWARDS CURSOR
   A : MOVE
   S : FIRE
   SPACE : BOOST (ADDS 3 HEAT)

SCORE:
   +5 POINTS:
      IF YOU DESTROY AN ASTEROID
   -10 POINTS: 
      IF AN ASTEROID COLLIDES WITH YOUR SHIP
   -0.1 POINT:
       WHEN YOU FIRE
HEAT: SLOWS DOWN SHIP AND DRAINS POINTS
SOURCES OF HEAT:
  EXPLOSIONS FROM RECENTLY DESTROYED ASTEROIDS
  FIRING FOR TOO LONG
  COLLIDING WITH ASTEROID
  AND SO ON
CHANGES EXCLUSIVE TO THIS UNOFFICIAL VERSION:
  ADDED AREAS
    2 MORE STAGES PER AREA (STARTS AT 4 STAGES INSTEAD OF 5)
    EXPONENTIALLY MORE ASTEROIDS PER AREA
    SCREEN GETS SLIGHTLY LARGER PER AREA