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->Boss Movement: Before the boss appears, its horizontal movement is
determined by the 100s digit of your score. The boss will move left if the
digit is odd and right if even.
->Secret Bonuses: A variety of hidden point bonuses are available if you
meet certain conditions during gameplay.
* One Million: On the third purple continent, you may see a coelacanth
fossil on the left side of the screen. Immediately move to the right side
and shoot; if Cleopatra appears, shoot her for 1,000,000 points.
* 16 Arrows: If you see a column of green arrows on the screen, shoot 16 in
a row for a 80,000 point bonus.
* 50,000 Miniboss Bonus: When you reach the miniboss that splits and
combines into segments, don't shoot it! Wait under the boss, and when it
flashes white, repeatedly shoot the center of the boss. You'll get a
50,000 point bonus for killing it this way.