The Sonic game uses the most vile type of in-app ad. The ad requires you to play Game of War for some indeterminate amount of time. You are made to play it after every stage. I hope Sega changes this, it basically makes their game unplayable.
Is this a joke? It seriously sounds like an onion article, that's how absurd it is.
I'm trying to find an example of a game with it so you can see for yourself (I would assume many Android games have the same thing), but it seems I've uninstalled them all out of frustration.