Board Thread:Questions and Answers/@comment-6016076-20140726002959/@comment-25072568-20141226155126

And you're right. Ninja Monkeys work great on early rounds, I normally use a 2/1 ninja monkey to take out the weaker bloons so as to not let the stronger towers focus on the weaker ones. Ninja Monkeys also helped me gain the Contested Territory multiple times, so it's probably useful to have some :)