Defense Battle

Defense Battle is the arcade in which you are the captain of the turret gun. You fight with enemy tanks. They move fast, strike hard, and never give up. Your task is to protect the wall of the city from the enemies. To accomplish this task, you control tower, pointing the gun at enemies and shoot.
You can also use a special weapons:
? Strike - an explosion that hits enemies.
? Stop - stops and paralyzes enemies.
? Shield - reflects projectiles of enemies and protects the wall.
For the defense of the city and the destruction of the enemies you gain coins. You can spend the coins to upgrade the tower gun, damage and rate of fire of the gun, to increase the wall energy. Improve the ability of special weapons. This will allow you to quickly punish a lots of enemies.