Description

Arizona is attacked by aliens! They have landed on the Colorado river waters and move East. Help the brave people from the USA to save their land from aliens!

5 TYPES OF TOWERS
keep the defense with towers, mines and bombs!

5 TYPES OF INVADERS AND 2 BOSSES
with special characteristics and abilities

DIFFERENT BONUS ATTACKS
use all your power and defeat the enemy!

Think over the strategy, stop the invasion and save the world!