Talk:Bloons TD 4 Expansion/@comment-75.246.197.93-20111031223806/@comment-109.156.82.170-20111208162657

It explains how you get it on the section, but you must get 30,000 cash with 40 towers. It's best if you get about 45 or more because it isn't as powerful than 40 towers. It is usually about round 80 (I got it before at round 84 and 82) but you don't need to get to round 80 to do it.