Defend Island : Beach Landing

Enemies are attacking your fortress. They want to landing from your position and capture the whole island.
Keep fighting! Defeat all of them.

# Touch screen to shoot.
# Touch Frag and Bomb icon to call assistance.
# Upgrade your fortress wall to keep alive.
# Upgrade your gun to increase the damange.
# Upgrade shoot speed.
# Pierce and criticle shoot
# Use gatling to kill more enemies quickly.