Ads are okay. They keep games free to play. What is not okay though is having an ad every 30 seconds. Every 2 minutes. That's fine. Every 5 minutes? Even better. The higher the frequency the more greed we see. Another thing that is not okay is 11 dollars to remove an ad. Your game is good. But it is not that good. Re-think your priorities voodoo copy cats. Understand? Good.