I'm really wondering here. If you want people to actually like the game your forcing them to watch an advert on, is it really in your best interest to make the x as small as you possibly can? and likewise, do you need to force us to click said x multiple times? do you honestly think that this is how you get people to install and try games, or are the advert companies just using this to lie about the clickthrough rates?
This is why I have like 4 apps specifically designed to strip out the built in ads of other apps.
Doesn't Pi-Hole exist for this sole reason?
That requires spending money buying hardware. Why do that when I can do it for free?