Flappy Bird Online is described as 'Play the Original Flappy Bird Game Online. Flappy Bird is a 2013 mobile game notorious for its difficulty level, is a side-scrolling mobile game featuring 2D retro style graphics'. There are more than 25 games similar to Flappy Bird Online for a variety of platforms, including Android, iPhone, Android Tablet, iPad and Online / Web-based. The best alternative is Flappux, which is both free and Open Source. Other Flappy Bird Online like games are A7X Flap (Free), Floculus Bird (Free), Clumsy Bird (Free) and Tricky Sky (Free).
In Tricky Sky you must fly as far as you can while avoiding the bats. Catch the right flow, and maybe you'll get through the tricky sky. Be sure to collect some gems on the way, to unlock new birds and planes! Or just pick up a star, and become invincible.
Comrade, You have been assigned to your new position as a test pilot for our brand new fighter jet with groundbreaking Flappy Engine technology. In this task, you will be using live ammunition and are required to destroy as much aircraft as you can.