Crop Circles 2 (Unhacked Version)

Game Information
Create our own road, and the use of crop production Crop circles to prevent the enemy alien invasion!
Game Instructions: [Mouse] operation, the beginning of the circle before pulling, so that the path longer folded position to your satisfaction, according to the lower right corner to start, and click the upgrade turret to place the various properties hit an enemy die, and then release the lower right corner of the enemy START WAVE entry.