Ads pop up after every level or after every two tries. A lot of levels in what i have played are 5 - 30 sec, the ads are 15 sec. But they are those annoying ads where after every 5 sec u have to press the x and smth else appears and oh missclick for only 1 pixel and u get brought to the app store. Just not worth my patience. Besides that you get too many other pop ups for things u gotta unlock with MORE ADS? The audacity. And a race against bots so it will feel competitive. Well im stupid to enjoy bot races BUT HALF OF THE TIME I GET ADS so pay to win. I used to play it when I was younger and I enjoyed it cuz the gameplay is actually fun, but I do not believe it was this unbearable with the ads. Maybe i just played without wifi cuz that worked back than. BUT NOW THEY HAVE PRE LOADED DEFAULT ADS