If At First Some Bloons Escape, Pop, Pop Again!

If At First You Don't Succeed, Bloon, Bloon Again is a special mission in which you must survive 10 difficult waves of bloons. You get 500 lives, and any time any type of bloon (including MOAB-class bloons) escapes, it reappears at the beginning of the path (but you still lose the number of lives that you would normally have lost because of it escaping). If the same bloon manages to escape multiple times, you will lose lives every time. In addition, bloons move twice as fast as normal in this mission. You can start the mission with one tower of your choice, regardless of cost, but if you choose a low-cost tower, you will also be allowed to upgrade it for free (the number of times you are allowed to upgrade it depends on what type of tower it is).