First the good news: the way you make the bloons form organic shapes using the variety of types (particularly in the 3rd "underwater" stage) is beautiful at times. The background is dynamic and interesting. The upgrades themselves have some great animation and effects on them. Unfortunately, they cost roughly 10 times what they should. the "blops" collection is redundant and only adds to the unforgivable grind, just give us credit for the bloon pops. The obvious plea for cash is sickening and downright insulting to your players. You have good elements that are completely ruined by your obvious grab for cash. Do yourselves and your fans a favor and LISTEN to the comments under your game. You clearly have the talent to create a great game, but this grind is obvious and pathetic. Your fans deserve better.