The simpler the interface in the game, the more complex it becomes. This also applies to Retro Square, where your task is to simply hold a small ball inside a large red square. You have to click on the ball so that it jumps, but at the same time does not touch the walls of the square. It's not as easy as it sounds. The reaction should be excellent, and if your reaction is not brilliant, then after hard training in the Retro Square game you will become super fast and agile. If you want to check, then go in and play and do not quit. Until you collect an impressive amount of points, let no one overtake you.