Flappy Bird is proof that no one knows what the audience wants
I haven't played Flappy Bird, but it seems really similar to a helicopter game that was inordinately popular in my middle school 10-12 years ago. It looks like it's still up. <a href="http://www.addictinggames.com/action-games/helicoptergame.jsp" rel="nofollow">http://www.addictinggames.com/action-games/helicoptergame.js...</a>