Plain gravity makes the bird fall in this game. i find the simple flap mechanic where tapping makes the bird go up and letting go lets gravity pull it down is the core mechanic.
Tap the screen once to make the bird flap upwards, then release to let gravity pull it down.
The control is a single tap. The objective is to guide the bird through tiny pipes to avoid crashing into them.
Most players should use small quick taps. This mechanic is simple but harder then it looks.
Q: What are the controls? A: The control is a single tap.
Q: What is the objective? A: Guide the bird through tiny pipes without crashing.
Q: What is a stated feature? A: The graphics look sharp.
Q: What is the main mechanic? A: Tap to flap up and release to fall.