Interceptor

A spacecraft moves the same height automatically and drops a black ball.
When (white ball) of an interceptor collides with a spacecraft, damage is received.
Even (big ball) in the air receives damage.

When an interceptor gets (black ball) a spacecraft has dropped, damage is received.
When (black ball) falls in the surface of the earth, damage is given to the earth.

Operating method of an interceptor
When a drug makes them do on the monitor, an interceptor moves at the orbit.
A bullet is launched by monitor's continuous tap.

About big ball.
The color turns periodic with green, blue and red.
The effect changes with the color when colliding with an interceptor.
When being green, (life point) rises.
When being blue, a barrier functions for 10 seconds. When (black ball) of a spacecraft collides at this time, it'll be reflective and be (blue ball). (blue ball) gives damage to a spacecraft.
When being red, reinforcement of a bullet (area and damage) is put into effect.

There is a stage from 1 to 6, and I'll increase in degree of difficulty of a game.
When you clear one stage, I advance towards the next stage.
A player chooses which stage to begin from on the early stage screen.

About a game end.
A game ends in case of the next.
When it was cleared to stage 6.
When all interceptors have been shot down.

Please play the waiting time of about 10 minutes.