Chimney

 is the 11th level of Bloons 2 Christmas Pack.

Completion
To complete this level, all you have to do is be accurate enough when aiming for the Spiky Bloon. If popped, it will pop the rest of the bloons, with the help of 3 Tack Bloons.

Trivia

 * It is the first level in Bloons 2 Christmas Pack that requires all bloons to be popped in this level.