From the moment after I finished the first wave, I was given a choice to watch an ad for extra coins or next level. I hit next level but, I was STILL given a ad. The ads pop up all the time. It's a ad simulator with the "game" as a extra. Devs, do not respond saying, oh just BUY the no ads :), no I will not. The point is, you force people to that option. If they aren't easily influenced into this scam, they uninstall, rate one star and move on. I do not recommend this app whatsoever.