Unstable Squares, a game in which you control a white ring, will be happy with your next challenge. It is in constant motion, and in order to score points, you need the ring to hit the gray circles. There are black lines at the top and bottom - these are the borders. Which you don't need to go beyond and which you can't swing. But the main danger is black squares. They are very unstable and will soon begin to move, then all at the same time, then each in its own direction. Avoid colliding with them by trying to break through the barrier or slow down if necessary in Unstable Squares.
