Hey.
Currently all the mini figures attack completely at random it seems, while they should all be focusing on the first enemy on screen (like in bloons TD 6). Please consider fixing this. It would make the game more managable.
If you got a couple thousand dollars saved up, just go to the Comic Store and buy the Angel mini. For 25 pieces of gold, she does raid-wide damage to all bugs every second. Drop a few Angel minis on the table and they wreck the entire place. You can literally have nothing but Angels on the highest difficulty mode and you'll win each time.