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Joystick or paddles.
The object is to shoot the floating numbers and mathematical operands
and place them down below in a balanced mathematical expression such
as 234+14=248. Blank spaces don't matter, so 2 34+1 4=2 48 is
acceptable. No operands may be on the right side of the '=' sign and
the result can't be equal to 0.
The scarabs to the side indicate how many machines you have left. You
may shoot and be shot by the other player which results in an award of
10 points to the shooting player and the loss of a piece to the
victim.
Press the paddle button to shoot a number, then move your scarab down
below the main screen and drop your number in one of the slots
available. If you accidently pick up a number or operand you don't
want, then you must position yourself above the 'garbage' hole toward
the bottom center of the screen, then press the paddle button to drop
the unwanted digit. If at any time you accidentally drop a number or
operand in the wrong place so that your expression shows little chance
of balancing, move your scarab as close to the bottom center of the
screen as possible and press the paddle button. This will release all
of your numbers and allow you to start over.
Scoring:
The four operands are + (addition), - (subtraction), x
(multiplication), / (division). These are worth 1,2,3 and 4 points
respectively. The computer goes through the equation and adds the
value of the operands, multiplies this by the length of the smallest
number, and multiplies that by 10. You also receive 10 points for
zapping the other player. CTRL-S will toggle sound on/off.