World in Danger Earth Attack

Press on the screen to launch the game. Spin the Earth by dragging your finger or mouse to target at the invading planets. Stop to fire the Earth's weapons at the enemies. Collect power-ups to enhance your weapons and raise your shooting speed. Avoid incoming attacks from the enemy planets to keep going. Crash all invading planets to move forward to the next level. Utilize the moon's help when available to increase your firepower. Monitor the increasing speed and number of enemies as you move up through the levels.