Monkey Fort

Monkey Fort is the first upgrade of the second path for the Monkey Village in BTD 5. It costs $770 (Easy), $900 (Med), $970 (Hard). Gives each tower in its radius +1 pierce. Useful on any tower with low pierce. It is highly recommended for towers that attack with darts rapidly. Note that it doesn't affect Sniper Monkeys. Spike Factories get 2 popping power with Tack Awesomizer.