Board Thread:Questions and Answers/@comment-68.166.176.250-20150522164625/@comment-70.214.35.55-20150525154301

No, he's right. I had never seen a T3 or T4 upgrade cost bloonstones, and then one time I saw they did...now I pay attention and sometimes they cost bloonstones, and sometimes they don't. I'm just trying to figure out the rhyme or reason as to when they cost bloonstones, and when they don't.