Ads. Ads. Ads. Spam. After an initial trial period. In which it asks you to rate your experience. (6 levels in) you then start to recieve forced ads almost every 2 levels. Absolutely painful. Gave up after level 12 because i was sooo sick of the ads. You can pay to remove them of course. Such a shame because the game has great potential. If they werent shameless with the ads i probably would have paid to remove them. But the fact that they have them rediculously often makes me not want to even