I am almost 800 levels in, there is no increase in difficulty, the points to redeem for skins and items are functionally useless, I spent the $3 to block all ads and it is not worth it. I just pull it up on my phone to fidget but there is no real satisfaction playing this "game". There are no obstacles or difficulty nor is there anything visually unique, not even themed levels just vague simple shapes repeated over and over and over.