Pins Bloons in place for a short time when struck.
~ BTD6 description
Pin is the 2nd upgrade of Path 3 for the Engineer Monkey. It allows the Engineer to pin down all affected non-MOAB-class bloons for 1.0s, similar to a stun. This pinning effect cannot affect Lead Bloons or Ceramic Bloons.
It costs $185 on Easy, $220 on Medium, $235 on Hard, and $240 on Impoppable.