maybe the frog one was before your time, it was just the first one that sprung to mind because my sister had it, but you know the kind of things i mean.
sorry i have to disagree, its not just apps this applies to either, its any ‘product’.
im sure everyone could name a few things that are heavily mainstream purely due to good marketing.
the entire genre of ‘pop’ music is a classic example, another obvious one is facebook, where would that be now without that initial high dollar throat ramming.
even if your game is the best game ever made and you are passionate and motivated about it, if nobody knows it exists it will not sell, simple as that.