Board Thread:Bloons Wiki and BTD News/@comment-3153244-20130925070022/@comment-5792287-20131113110821

182.185.204.6 wrote: What is the blue thing in between D14 and D15? Read the rules.

"There is a set of gates located near the middle of the game board. They inhibit the progress of monkeys and are a light blue colour . Monkeys can only move through gates if they have successfully popped all bloons on squares of the same colour as the gate, or if they are using the Ninja Monkey's ablity Teleport."