The Organisation for Economic Co-operation and Development’s triennial international survey compared test scores from 65 countries. Happiness was ranked based on the percentage of students who agreed or disagreed with the statement “I feel happy at school.” Test scores were ranked based on the combined individual rankings of the students’ math, reading, and science scores.
Good to see that Google is doing such a great job of enforcing their "No Flappy Bird clones" rule.
My personal favorites though are Flappy Titanic,Flappy Obama, Flappy Zombie, Flappy Bard, Flappy Memes, Flappy Bieber and, of course, Flappy Turd, Flappy Turd, Flappy Turd, Flappy Turd Saga and Flappy Shit.
I wish Flappy Fedora would hurry up and get an Android version.