This is a Special Mission that takes place at Monkey World. There is a 4-4 Ninja Monkey on the continent that looks like North America. It not only throws five homing shurikens and the occasional flash grenade, but also has a buffed up Sabotage Supply Lines ability that even slows down Z.O.M.G.s and lasts almost double the time as the original. However, she wants to teach the art of Bloonjutsu to other monkeys, so a random tower nearby will be converted into an unupgraded Ninja Monkey. There will be an 80% refund for the tower converted. These ninjas are special; they can be 4-4 too! You can only have at most five Bloonjutsu Grandmasters on the track at any given moment. Pass thirty custom levels to win!