Please type the words on the birds as fast as you can before
the birds disappear. when a birds is down, you can get
some point. if 5 birds hasn't been broken before it
disappears , you will lose one life. you have 5 lifes in total.
If you break the birds just appear from the bottom of the
screen will minus 200 points, then the birds at a higher height
has low points, so break the birds at a low height can make
a higher point.