Grumpy Beaks - If you like Flappy Bird you will like Grumpy Beaks. If you hate Flappy Bird you will love Grumpy Beaks. That is the fact!
Instructions - If you like Flappy Bird you will like Grumpy Beaks. If you hate Flappy Bird you will love Grumpy Beaks. That is the fact! Let the Grumpy Birds fly, just hit your left mouse Button to flap.