If you had the power to make Activision quiver in fear, Ubisoft tremble in their boots and EA piss themselves like a small child who couldn't wait to go to the bathroom (and all other game developers/publishers) - what would you make them do?
Personally, I'd have them fix Mass Effect 3's ending to my liking, then make them add horses into every game (I'm not kidding, every game would have them - from Duke Nukem to Final Fantasy to Portal).
Would you use your awesome powers responsibly? Or make them put statues of yourself into every game?