Wall Factory

The Wall Factory is a tower that builds walls on the closest piece of track within the range. The stats of the walls and the factory itself are explained below. The walls' purpose is to stop the bloons for a temporary amount of time, as the bloons will attack the walls. When a M.O.A.B.-Class bloon realizes that it/he/she is blocked by a wall, they will abandon their previous target (that they were attacking) and focus on attacking the wall. They will continue to attack their previous target when the wall is destroyed.

Stats/Factory
The factory is introduced in BTD 6. It is unlocked at rank 37. and has medium range. Its wall-creating speed is fairly slow, as they take 18 seconds to create a wall. Note that the 18 seconds start AFTER the previous wall is destroyed. This tower costs $610 on Easy mode, $750 on Medium, $800 on Hard, and $930 on Impopable. It's tier 4 upgrades are Electric Fence Factory and Impenetrable Walls. The ability is called Impenetrable. The factory itself has 50 health and an Absolute Defense of 18.

Stats/Walls
The walls a 0/0 factory produces have 40 health and an AB of 7. It also doesn't do damage, but that changes with the path 1 upgrades. They also have Camo detection, which means Camo bloons will also be blocked by them.