Click to shoot the evil circles. Yellow circles are the weakest, and are penetrable. They give 5 coins each. Red circles are impenetrable and give 10 coins. Orange circles are faster than red and yellow circles, and like red circles they also give 10 coins. Green circles give life, but are hard to tell apart from other circles. They give 5 coins and are penetrable. The rest of these circles give 10 coins each: Zombie circles get faster as they get closer, so you have to shoot them fast. Metal circles are the same as zombie circles but are faster. Group enemies come in groups of 25. They get slower near the mouse pointer, and get faster the farther.
