Square Bird is a casual game that requires you to complete levels by building egg towers to pass the obstacles. Each time you pass a barrier, the surplus of your egg tower remains behind depending on the height of the obstacle. For example, if in your front there's a structure that requires 3 blocks to get over it, these will be left behind after you pass the object.
You can also shoot eggs at these structures from time to time and get rewarded with a serious amount of points. When it comes to visuals, Square Bird provides a really friendly environment where you are not distracted by fancy effects and animations. By taking into consideration its rather lightweight build, you should be able to enjoy these fun levels even on lower-specification Android mobile devices.
Being a free game, there's no secret that you are required to tolerate advertisements showing up on your screen from time to time.