Once again the penguins are waging war on the human race..
Were not sure why, or whos funding them but one things for..
they want to wipe us out!!.
Unlock loads of levels,towers and upgrades to aid you in your mission to stop these squid scented scoundrels..
Use the mouse build and upgrade towers.
Use hot keys 1,2,3,4,5,6,7,8,9,0 for faster building