Multiple Fronts

Sometimes, the war between the monkeys and the bloons will take place on multiple fronts. In these cases, two tracks will switch back and forth between rounds, and you must fight the bloons in each area separately. This involves purchasing separate towers for each area. You will receive 1.8 times as much money as normal, but you must budget this money across both areas. It's kind of like playing two games at once, but switching between them and not having quite as much money.