* Path finding AI
* Open Battlefields
* Visual Upgrades on Towers
* Unlockable Achievements
* Medals
Tips:
* Upgrade as much as possible.
* Build complex paths using tower placments.
* Keep your best (most expensive) towers with range of the enemies flight paths.
* Large numbers of cheap towers can be as effective as fewer expensive towers.
One Penguin Takes it personally when he is surfing the web and stumbles upon a web site telling him that he cant fly, after that he sets his mind to r...
