Bruce Lee has five short swords in his right hand.
Press the key " a " (attack) will shoot one sword out,
and press the key " b " (back) to take it back before
it returns automatically. This sword can shoot down both the flying
Yinyang on the left and top. When shot, the relevant Yinyang falls.
Press the key " f " (fire) will shoot
the other four swords out all at once. These four swords can only shoot
down the Yinyang flying on the top. They'll be back automatically after
shooting. The Yinyang will of course fall when shot.
You won the game once you shot down both Yinyangs. To start again,
press the key " 1 " and " 2 " one
after the other, the Yinyangs dropped at bottom will fly up again.
