How To Fly app for iPhone and iPad

In the context of two cliffs, new birds that have just learned to fly will fly from one side to the other, but because they have just learned to fly, they will be able to fly randomly for a period of time when they will fall, the players task is to touch the bottom of the birds (Has a push effect) to create thrust to help them fly up and over the cliff, pass a bird to gain points, fall or crash into the mountain minus 1 life, total 3 lives

Win condition: compare the score with the high score of the mode

Losing condition: all 3 lives

The game has 2 modes

Normal: the frequency of birds appearing gradually increases

Hard: the frequency of birds appearing increases gradually, there are birds hit by bombs, the player must push it away from other birds before it explodes