It's a fun pixel game, don't look at the simple form but it's extremely difficult. It has a simple but not rough pixelated picture, a small bird with a languid look, and a few white clouds.

Gameplay
You need to constantly control the frequency of clicking on the screen to adjust the flight altitude and landing speed of the bird, so that the bird can smoothly pass through the tube slot on the right side of the screen. If the bird accidentally swipes and touches the tube, the game is over.