Some games are so complex you need maps, tutorials, and a wiki open on another screen. Flappy Bird was the complete opposite — a bright blue sky, a few green pipes, one tiny yellow bird… and your patience being crushed in under ten seconds.
One tap made the bird flap, stop tapping and it would plummet like a rock. Sounds easy, right? Try it once and you’ll understand: it’s the kind of “easy” that makes you want to throw your phone across the room.
https://flappybird2d.com