Enemies are already flying to your base! How long can you hold out? Hurry up the enemies are not waiting!

* UNIQUE AIMING SYSTEM CONTROL THE SIGHT BY TILTING THE PHONE AIM TO ENEMIES

* SHOOT WITH TWO TOUCHES WITH ONE FINGER

* PUT YOUR BEST RECORD SHARE THEM WITH FRIENDS

* ORDER GAME CURRENCY SPEND ON IMPROVEMENTS FOR YOUR BASE

* PLAY ROULETTE GET UNIQUE IMPROVEMENTS

* FIGHT ENEMIES MORE HIGH TECHNOLOGY