Escape from the Aliens

The game is the training speed of eye and hand.
To avoid the aliens coming down immediately.
The beginning you will have life points are 100.
But if it is an alien ran into. Rate your life will decrease gradually.
Until to zero will game over. Therefore try to keep as long as possible to earn points to.
On the other hand, if you and ran into the blood. It will make your life points can be increased.