Without the flag, no Scratch projects would be able to run unless a key was pressed, a sprite was clicked, or a When () is Greater Than () hat block was triggered to activate the scripts. While creating a project is fully possible without the flag, it is not recommended and most users use the green flag. Examples of projects which do not use the Green Flag block are: Projects which just share an image Slide shows where only key presses need to be used to move the images
