[list] [*] Enemy pathfinding - they will no longer get stuck behind trees and other small obstacles, and will instead go around [*] New Defensive structure - Wall. Has 10 hp but cannot attack. Enemies may attempt to go around it, but will break through when they are in crowds. Walls will also block arrows. [*] Tweaked spawn rates [*] Rebalanced defender stats and costs [*] HP bars on all defenders [/list]