I am a fan of tower defense. Bloon 5 is not even challenging and I love if you would include a difficulty on it that is unbeatable or (almost unbeatable.) I read the article but was confused and I am not sure if it's included, I hope you do allow the use of all towers on the beta test so that it would be tested if it's good or what change is good and bad.

I also like to suggest a rotational free tower. If you don't own this tower, you may not earn anything by using it or have decreased rewards if you use it. But this would encourage people from buying if that tower is useful in their strategies or not. AFter all, I'm sure no one is a fan of "buy and test" but rather "test and buy".