BUMPY BIRDS is most likely one of the simplest games to play on your mobile device. Just tap on the screen to fly and see how high you can make it. It becomes very challenging since the obstacles are other “bird bullies” that constantly fill the sky and impede you from flying upwards easily. There are also mean “thunder clouds” that shoot out dangerous lightening bolts which only add to the challenging gameplay and significantly ramp up the difficulty level as you progress higher up in the game.