Interesting.
Here's an idea, to game developers who's gonna do this.
Scrap the idea of putting Ads on your short 1-2 minute game. The game is just too short,
it'll be more annoying than fun, you'll get more of a negative feedback, trust me.
Instead, put a button linking to the full game (ios?android?web?steam?) or at least a text of where they can grab it.
If the game is well made, and very addictive, there's a chance people will want to grab the full game.
Because the nature of the game is just too short, the chances of them wanting more are pretty high.
Think of it as a snippet, a little demo of your full game.
If it doesn't do well, at least you get a few bucks, and a few traffics.
I can see this is way better than spamming twitter and fb, and buying ad placement.
Sounds like a win-win situation to me, and a great free advertising.