Air Traffic Sky War

fighter: both ultra frequency of continuous attacks, a wide range of scattering or destruction of laser three fighter will let you fondle admiringly!
The upgrade system: not only to upgrade armor, you can also upgrade aircraft and a barrage of bullets!
The guns: before battle do not forget there are four different types of attacks of the second artillery support, auxiliary guns can strengthen the upgrade
The achievement system: containing tens of thousands of gold reward waiting for you to challenge!
Please list: list of heroes ready, together with the PK and the global game player!
A screen full of gold coins: drop gold ratio to shoot down enemy planes high, flying in the sea of gold!