Every time you click the green flag, the default sprite will hide, and a pattern will show starting from the center of the stage, and as it touches the edge, it will produce a new pattern. The space key will stop the program. The up arrow key will make a square with 100 steps on each side and with blue color. The down arrow key will clear all the drawings on the stage and show your sprite at the center of the stage. Song: LLusion- Day in Paris